퀵실버-맥 스위처 One Stop 정보창고

Contents [hide] 1 USB port not functional by default 2 How to enable USB ports 3 USB port visible in the OS 4 Mounting filesystems from USB Mass Storage Devices 4.1 Mac OS X 10.4.7 Comparisons 4.2 Mac OS X 10.4.9 4.3 Loading the KEXTs 5 Boot from USB drive

[edit] USB port not functional by default

According to Apple, the USB connector on the Apple TV is reserved for Apple support only. However, given that Command-S will boot it into single user mode it seems unlikely that they've disabled the port at the hardware level.

[edit] How to enable USB ports

Turbo claims "USB success". His procedure has been verified by lpp.

Confirmed working:

• Keyboard
• Mouse
• USB Hubs
• Generic HID devices (USB game controllers)

[edit] USB port visible in the OS

The system_profiler included with the AppleTV sees the USB, and has a 1.1 and 2.0 driver attached. USB devices attached to the port are also seen by system_profiler:

USB:

    USB High-Speed Bus:

      Host Controller Location: Built In USB
      Host Controller Driver: AppleUSBEHCI
      PCI Device ID: 0x27cc
      PCI Revision ID: 0x0002
      PCI Vendor ID: 0x8086
      Bus Number: 0xfd

    USB Bus:

      Host Controller Location: Built In USB
      Host Controller Driver: AppleUSBUHCI
      PCI Device ID: 0x27c8
      PCI Revision ID: 0x0002
      PCI Vendor ID: 0x8086
      Bus Number: 0x1d

        Bluetooth HCI:

          Version: 5.25
          Bus Power (mA): 500
          Speed: Up to 12 Mb/sec
          Product ID: 0x0001
          Vendor ID: 0x0a12

        IR Receiver:

          Version: 2.42
          Bus Power (mA): 500
          Speed: Up to 1.5 Mb/sec
          Manufacturer: Apple Computer, Inc.
          Product ID: 0x8241
          Vendor ID: 0x05ac  (Apple Computer, Inc.)

[edit] Mounting filesystems from USB Mass Storage Devices

Obviously this is the number one thing we'd like to get working with USB. I need to trace how diskarbitrationd works and how new USB storage devices get probed and mounted.

One possibility is that the diskarbitrationd distributed with the AppleTV is limited to mounting filesystems off the boot device of the unit, or the IDE interface. If someone with MacOS 10.4.7 could run 'md5 /usr/sbin/diskarbitrationd' and compare it to the appletv's:

MD5 (/usr/sbin/diskarbitrationd) = 493e88e3db210ef0557a2c48e1214a8b

we could begin to narrow things down.

[edit] Mac OS X 10.4.7 Comparisons

Mac OS 10.4.7, Intel Mac mini basic install. For more information see the discussion page.

$ md5 /Volumes/Bootcamp\ Master/usr/sbin/diskarbitrationd 
MD5 (/Volumes/Bootcamp Master/usr/sbin/diskarbitrationd) = ac17cc6c4d0e795b44fb1120f508c23a

[edit] Mac OS X 10.4.9

Then again, it seems as if the binary has somehow been modified again in the 10.4.9 update, as found on another Mac Mini Core Duo:

$ ls -aliFGo /usr/sbin/diskarbitrationd
532972 -r-xr-xr-x   1 root  wheel  - 235524 Jul 14  2006 /usr/sbin/diskarbitrationd*
$ md5 /usr/sbin/diskarbitrationd 
MD5 (/usr/sbin/diskarbitrationd) = b20d8afa178da25285b311389ae0fe1f

Full /usr/bin/otool -L dump may be provided upon request

MD5 is unreliable with Mac OS X, because files changes when prebindings are update. Use ctool. It ignores the perbinding part of the file and then calculates a consistent MD5 checksum.

ctool doesn't work on diskarbitrationd:

$ ./ctool -d /usr/sbin/diskarbitrationd 
====[ file: (/usr/sbin/diskarbitrationd) ]====
file type: unknown
file: (/usr/sbin/diskarbitrationd) is not an object file.
file size: (235524) bytes.
MD5(/usr/sbin/diskarbitrationd)= b20d8afa178da25285b311389ae0fe1f
$ file /usr/sbin/diskarbitrationd 
/usr/sbin/diskarbitrationd: Mach-O universal binary with 2 architectures
/usr/sbin/diskarbitrationd (for architecture i386):     Mach-O executable i386
/usr/sbin/diskarbitrationd (for architecture ppc):      Mach-O executable ppc

[edit] Loading the KEXTs

IOUSBMassStorageClass.kext is required to support USB disks. This KEXT depends upon two other missing bundles IOSCSIArchitectureModelFamily.kext and IOStorageFamily.kext. However, IOSCSIArchitectureModelFamily.kext pulled from the 10.4.9 Combo Update fails to load with the following errors:

appletv:/System/Library/Extensions frontrow$ sudo kextload -v 6 IOSCSIArchitectureModelFamily.kext
 ...

kextload: link/loading file /System/Library/Extensions/IOSCSIArchitectureModelFamily.kext/Contents/MacOS/IOSCSIArchitectureModelFamily
kextload: allocated 90112 bytes in kernel space at 0x2bdc6000
kextload: using load address of 0x2bdc6000
kextload: kmod name: com.apple.iokit.IOSCSIArchitectureModelFamily
kextload: kmod start @ 0x2bdd702a (offset 0x1034a)
kextload: kmod stop @ 0x2bdd7067 (offset 0x10387)
kextload: unable to register module with kernel
kextload: a link/load error occured for kernel extension IOSCSIArchitectureModelFamily.kext
kextload: clearing all version/dependency relationships among kernel extensions
kextload: sending 1 personality to the kernel

IOSCSIArchitectureModelFamily.kext from the 10.4.7 and 10.4.8 updates fail with a similar error.

10.4.7:

kextload: link/loading file /temp/10.4.7/IOSCSIArchitectureModelFamily.kext/Contents/MacOS/IOSCSIArchitectureModelFamily
kextload: allocated 86016 bytes in kernel space at 0x2b66c000
kextload: using load address of 0x2b66c000
kextload: kmod name: com.apple.iokit.IOSCSIArchitectureModelFamily
kextload: kmod start @ 0x2b67cbe0 (offset 0xff00)
kextload: kmod stop @ 0x2b67cc20 (offset 0xff40)
kextload: unable to register module with kernel
kextload: a link/load error occured for kernel extension 10.4.7/IOSCSIArchitectureModelFamily.kext/
kextload: clearing all version/dependency relationships among kernel extensions
kextload: sending 1 personality to the kernel

10.4.8:

kextload: link/loading file /temp/10.4.8/IOSCSIArchitectureModelFamily.kext/Contents/MacOS/IOSCSIArchitectureModelFamily
kextload: allocated 86016 bytes in kernel space at 0x2b5f9000
kextload: using load address of 0x2b5f9000
kextload: kmod name: com.apple.iokit.IOSCSIArchitectureModelFamily
kextload: kmod start @ 0x2b609c8c (offset 0xffac)
kextload: kmod stop @ 0x2b609cc9 (offset 0xffe9)
kextload: unable to register module with kernel
kextload: a link/load error occured for kernel extension 10.4.8/IOSCSIArchitectureModelFamily.kext/
kextload: clearing all version/dependency relationships among kernel extensions
kextload: sending 1 personality to the kernel

[edit] Boot from USB drive

Connect bootable USB drive and press "menu" and "-" on the remote while you restart. Thanks Ozy for finding this out (Video) (YouTube)

Ozy used a cloned internal drive where he changed the boot picture in order to distinguish it from the internal drive. Since the Apple TV OS disables USB during the boot process, it doesn't fully boot. But hey, it's a start, isn't it? Next we'll make a Darwin mini USB drive image...

• Update 4/4/07: You need to patch the AppleFileSystemDriver.kext to get the system to fully boot. Details are available at the following page: Enable SSH Without Opening the Apple TV

1. Open it up (4 screws on the bottom, small Torx bit)
2. Put the 2.5" drive into a USB enclosure or whatever you want
3. Mount the HFS filesystem
4. Install Perian in /Library/Quicktime (as you normally would)
5. Install Dropbear (or enable SSH if you know how... we gave up and used Dropbear)
6. Add a startup script to disable the firewall or open up the ports you need for SSH
7. Put the drive back in and boot it, ssh login as frontrow, password frontrow (or add an ssh key for yourself)
8. Use a reference movie (use QT Pro to save a reference movie) to bootstrap your xvid file

voila

Should see a writeup later today.

Edit: digg article is here apparently : http://digg.com/apple/XviD_fully_functional_on_Apple_TV


UPDATE
kextstat and ps aux on page 3
So has anyone busted out their drive yet? I want to make sure someone else can keep responding to questions here. I'd give you ssh access to ours but it's behind a big fancy VPN.

We got SSH up by adding a startup script to disable the firewall and start dropbear:

code:

bash-2.05b# cat /System/Library/StartupItems/fw/StartupParameters.plist 
{
  Description = "Firewall";
  Provides = ("Firewall");
  Requires = ("Network");
  OrderPreference = "None";
}

code:

bash-2.05b# cat /System/Library/StartupItems/fw/fw
#!/bin/sh

/sbin/ipfw -f flush
/sbin/ipfw add 65535 allow ip from any to any

/sbin/dropbearkey -t rsa -f /etc/dropbear_rsa_host_key
/sbin/dropbear -r /etc/dropbear_rsa_host_key -p 22222

Note that the firewall is wide open now so be careful

Also the dropbearkey part is only necessary once to generate the key, so you can delete that after the system has rebooted once.

To get dropbear go here: http://matt.ucc.asn.au/dropbear/dropbear.html
Compile it on an x86 machine (I used my Macbook Pro) and just transfer those binaries over to the HD yourself using a USB enclosure or whatever you have that can interface with a 2.5" PATA drive.

It is likely you can get the system's built-in SSH working correctly. We were in a hurry, and after running into a kink we were like "gently caress it" and threw dropbear up because it was a pretty instant win.

To ssh in you use: ssh -p 22222 frontrow@1.2.3.4
To scp stuff to it use: scp -P 22222 /path/to/localfile frontrow@1.2.3.4:/path/to/senditto

I know this is still a pretty ugly list of steps, and if you're confused just wait until everything gets a bit more streamlined. I just want to get more hacker folks involved so work can continue as fast as possible.

UPDATE 2
Sorry, we should have made this more clear, but 720p XviD *runs smoothly on the device!*

출처: http://forums.somethingawful.com/showthread.php?threadid=2391956&perpage=40&pagenumber=1

Update: Thanks to reader Epon, we now have a way to do this without requiring iPartition. So you can now do the upgrade for only the price of your new harddrive.

Here it is, a step by step tutorial on upgrading your Apple TV harddrive. With thanks to Jonathan Bare, the brave soul who worked this out!

It should be noted that this process will almost certainly void your Apple TV’s warranty and you are attempting this upgrade at your own risk.

You can do this via the terminal, or by using some applications (which add $100 to the cost of the process).

What you need:

Hex-bit screwdriver
2.5″ hard drive (we used a Western Digital 120 GB WD1200VE drive)
Wiebetech Forensic DriveDock (optional, but recommended) or any 2.5″ to Firewire bridge
Subrosasoft’s CopyCatX ($49), or be comfy with the terminal
Coriolis’s iPartition ($45), or use the Apple Factory Restore

This process was done on an Intel Mac Pro. Connecting the Apple TV drive to a Power PC Mac might damage the GUID partition, especially for anyone who hasn’t upgraded to Mac OS X 10.4.6 or newer.

Step 1

You’ve already seen the Apple TV dissected, so we won’t get in to the details of removing the bottom cover and the hard drive. Just note that you need to peel back the rubber covering the bottom of the Apple TV to get to the four screws holding the hard drive to the cover (see here for details).

Once you have the hard drive out, connect it to your handy WiebeTech Forensic DriveDock or other Firewire bridge. We used the Forensic DriveDock to prevent any writing to the original drive, but the Forensic DriveDock is an expensive accessory to just have lying around. Any 2.4″ to Firewire bridge will work just as well.

Two volumes will mount, OSBoot and Media. Looking deeper in to the partition structure with diskutil, you can see the addition critical partitions on the drive:


/dev/disk5
  #:    type name          size      identifier
  0:    GUID_partition_scheme      *37.3 GB    disk5
  1:    EFI              34.0 MB    disk5s1
  2:                  400.0 MB    disk5s2
  3:    Apple_HFS OSBoot        900.0 MB    disk5s3
  4:    Apple_HFS Media        36.0 GB    disk5s4


Step 2 - Using the Terminal

Note: If you have already installed some extras on your Apple TV harddrive, doing a ‘factory restore’ will remove these. If you don’t want that, then after copying the contents of the drive over via the terminal, use the iPartition method below rather than ‘factory restore’ to free up the additional space on the drive.

To begin, we need to make an image of the original harddrive. This can be done using dd to make an image file (ensuring you reference the correct disk, here it is ‘disk5′):

dd if=/dev/disk5 of=/Users/tom/AppleTVDrive-Compressed.img bs=1024k

Next we must use this image to recreate the contents on the new drive. Disconnect the original drive, and connect your new drive to. Then use this command to restore the contents of the image to the drive (again ensure you use the correct drive number):

dd if=/Users/tom/AppleTVDrive-Compressed.img of=/dev/disk5 bs=1024k

Finally, connect this drive back to the Apple TV, and do a ‘factory restore’; this will free up all the additional space on the new drive.

Step 2 - Using Applications

Using CopyCatX, you must duplicate the drive to a disk image.

The 400 MB unlabelled partition is used if you do a factory restore, the OS is restored from this partition.

Next we connected the new Western Digital drive to a regular WiebeTech ComboDock and used CopyCatX to duplicate the disk image to the drive. Creating the disk image first meant that we no longer needed to keep the original drive connected and we could repeat the restore process to the new drive when we inevitably screwed it up.

Once the the disk image was restored, we had the exact same partition map as the original drive, except now there was 70+ GB of unused, unpartitioned free space on the drive. At this point, you should test the new drive by connecting it to the Apple TV. It should boot normally and show the old capacity of around 40 GB.

Disconnecting and going back to your Mac, with the help of iPartition, you must increase the block size of the Media partition to use the full space of the drive. The key here is not destroying the existing EFI or 400 MB unlabeled partitions. So far we have been unable to resize this volume with any utility, including diskutil and Subrosasoft’s VolumeWorks without breaking other partitions.

Now reconnect the drive to the Apple TV and plug in the power.

All done!

The resulting capacity should be 107 GB (or more/less depending on your replacement drive), as seen here:

Note: It seems the built in Fujitsu drive was probably chosen for it’s low power consumption, and its probably lower heat output. Keep this in mind when selecting a replacement drive.

That’s it you are done, and you should now be able to fit that many more episodes of ‘Lost’ on to your Apple TV! Good luck!

The file has been removed by request demand of Apple. See “Update 3″ below for a little more info.

The AppleTV started shipping six days ago, the interwebs have been alight with AppleTV related posts. So far it’s been hacked to play unsupported files, it’s had it’s hard drive swapped out for a larger one, it’s been dissasembled and a lot more. In fact there’s already an entire site dedicated to hacking it. Heck, there’s two. With all this online attention, someone was bound to upload it’s entire OS for public download, like someone did. And while dozens of people are hacking away at it trying to get it so that it will boot properly on your Mac, another Digg user did something a tad neater. Spiderroll created and posted a “skin” for FrontRow to make it look like AppleTV, pulling the images directly from the OS.

The skin is a very simple one - it just replaces FrontRow’s images with ones from the AppleTV’s hot new menu system, with an option to replace the four main categories’ names with “TV”. If you do opt to change the category names, you will need to recognise the icons for what they refer to, but if you’ve ever used FrontRow on your Mac in the past you should be just fine. Unfortunatly the layout isn’t changed at all, but I wouldn’t put it past someone to create a second mod to do this.

Installing it isn’t the same as installing a FireFox theme, but it’s not terribly complicated either. The two readme files included in the package really explain everything. Basically, you replace the select images in “Resources” with the new ones provided and make sure they were replaced. According to the readme, if it doesn’t want to let you replace them, you’ll need to exit FrontRow using Activity Manager. That’s it if you don’t want to change the main text - if you do, you copy over a preference file into “Resources/English.Iproj”. That all that you have to do … simple enough, right? Oh, and if you’re worried about loosing FrontRow’s orriginal icons / text, no worries. A backup is included with the .zip.

For photos of the final result, this image and this image may be to your liking. Sure, they’re poor quality digital photographs, but OS X wouldn’t let me take a screenshot of FrontRow and they got the job done (mostly). Just note that the background isn’t actually changed - the blue glow is just my camera.

Update: Check out this photo and this photo for a much more accurate demonstration of what it looks like. Thanks Adam!

Update 2: I was informed via IM that there was a backup file missing from the package, PhotosSharedPreview.png. Please save the image to your hard drive with the rest of the backup files or just download the zip again (the server can handle it). Thanks!

Update 3: The lovely people at O’Melveny & Myers LLP, acting on behalf of Apple of course, sent me a kind and loving C&D notice. So with that, I am forced to remove the file from my server, as well as that lovely picture of the AppleTV I had up. If you know where to digg it though, you’re set.

Digg it | Bookmark it

So I like the simplicity of the AppleTV, but that simplicity removes some of the functionality I want — like adhoc codec support. But as I was laying in bed trying to figure out how to simplify the hack to add codecs to the AppleTV, I realised I already have something better: a Mac Mini.Still back to that UI… it would be nice to have that elegance… So I wrote an AppleScript that you can add to your Login Items, that makes the Mini act like an AppleTV. It even plays the beautiful start-up video, and goes straight to FrontRow, so you never have to see the OS.

It does, however, have one bug. If you activate FrontRow using the script, the Apple Remote doesn’t work — no reason, no explanation. It just doesn’t work. I’m posting a download link so you can hook up your Mini the same way as me, with the hopes that someone else can fix the Remote Control bug. For now, I’ve just commented that code out, so you’ll have to hit “Menu” on the remote after the Intro video. I also included a wallpaper so that when FrontRow isn’t running, you don’t see a regular desktop. I’m sure someone else can do a better job of that too!

Here’s some steps you’ll want to take after extracting the Zip…

• Create a folder in the Library folder on your hard drive called “AppleTV”
• (Note, not your own Library which is ~/Library, but the one on the root of your boot drive)
• Copy the contents of the zip file into that folder
• If your hard drive is named something other than “Mac OS” you’ll need to edit the script to point to the right path
• Set your desktop background to the included wallpaper
• Turning “Hiding” on in your Dock options
• Turn desktop icons off in your Finder preferences
• Add the Script to your Log-in Items in System Preferences

Update - Thanks to the folks who left comments, the bugs are fixed and the bundle is improved. Download again if you want, and add this additional step:

• Copy the included screen saver to your ~/Library/ScreenSavers folder

Now when your Mini starts up, it’ll immediately begin behaving like an AppleTV! Download the gear you’ll need here…

Update Again - Check out the skin posted in the comments. It adds AppleTV-like icons to FrontRow.

출처: http://www.jonandnic.com/?p=239

Minutes after they were announced on January 9th, we at Rogue Amoeba ordered two AppleTVs to test out. Just as we extended and improved the AirPort Express with Airfoil, we're evaluating what we can do for the AppleTV. Today our AppleTVs have finally arrived and I've been testing them out.

Surprise #1: The AppleTV doesn't ship with any connection cables

Printer manufacturers started shipping printers sans cables a few years back, and it was lame, but many of us have an excess of USB cables anyhow. However, I don't have any HDMI or component cables, let alone spares¹. So when the AppleTV arrived, I had a very pretty, very expensive brick. I could power it on, but not much else. It's ultimately a small thing, but I expect better from Apple.

After a quick trip to Radio Shack, I hooked the AppleTV up to my TV.

Surprise #2: The AppleTV doesn't require a "Widescreen TV" or an HDTV

This is a pretty damned big deal, and I haven't seen it reported anywhere. The usually reliable David Pogue's review states:

"The heartbreaker for millions, however, is that Apple TV requires a widescreen TV - preferably an HDTV. It doesn't work with the squarish, traditional TVs that many people still have." See updates at the end of this article

I don't blame David for this. After all, it's what Apple's documentation and marketing talks about, using the phrases "Widescreen TV" and HDTV. The Connect page of the AppleTV web page says:

Apple TV works with widescreen, enhanced-definition or high-definition TVs capable of 1080i, 720p, 576p, or 480p resolutions, including popular models from these manufacturers.

And yet there I was, with a 480i (that's "standard definition", what non-HD TVs have) option right in the Apple TV settings. See for yourself:

That's a "squarish" CRT TV², just like most people still have (specifically, it's a Magnovox 27" model #27MS4504R). I don't know what percentage of standard-def TVs have component inputs, but mine does and it's about 3 years old. So let's dispense with one myth right now - the AppleTV does not need a widescreen TV. AppleTV does have a 480i mode, which works with standard-def TVs.

My guess is that Apple would rather lose a few customers than confuse everyone. Only standard-def TVs made in the past few years will have component inputs, so most of the fifty years worth of standard-def TVs out there still won't work with the AppleTV. By referring to Widescreen TVs, they may prevent people with standard-def TVs from buying only to find out they need a new TV. But if you've purchased a new, non-HDTV in the past few years, the AppleTV may well work for you (provided you have component input jacks).

Once it was plugged in, setup was incredibly smooth. In the past I've tested several devices to get video from the computer to a TV, and this is by far the simplest. I selected my language, told it what network to join, entered my network password, and that was it. It took about 45 seconds, and there were no problems - I couldn't have asked for anything simpler there.

Once set, you then need to either associate it with a machine, or set it up for streaming from a machine. Either way, the AppleTV appears in your iTunes' Devices tab, just like an iPod. When you set it up for streaming, it appears, you click to set it up, and then it disappears, visible only in the Preferences. When you set it up to Sync, it looks exactly like an iPod.

The difference is that for some reason, the Apple TV only allows for Syncing. With an iPod you have the choice between syncing everything or manually managing. The AppleTV does not allow for manual management. This means it's not possible to drag and drop select songs to the AppleTV. I'd love to use syncing, but my music library alone is over 40 gigs, so that won't work³.

My first experimentation was using the device for audio playback. I don't watch much TV, but I listen to a lot of music, and I wanted to see how AppleTV fared here.

Surprise #3: The AppleTV works pretty well with your music library

The device is obviously built for TV, but it does a pretty good job with audio playback. Obviously it sounds great, and looks good, particularly if you have album art for your music. There are a few snags, however.

Navigating music can be a chore, particularly when you have a couple thousand different artists. The Apple Remote allows for just two operations in each direction. You can move by one by pressing the + or - keys, or you can scan quickly by holding down + or -. The longer you scan, the faster the scan goes, which is good. However, when you let go, the scan doesn't stop immediately. If you see what you're after, it's already too late. As well, the ends of the list don't bounce like the iPhone does. The stop is abrupt and jarring. Overall, the navigation is less than ideal. For video, you're likely to have much shorter lists, but I think this points to problems with the concept of a six-button remote.

As well, leaving a section (such as Music, Podcasts, or TV Shows) stops playback. For video, this makes sense, but it means you can't play audio and browse around. A minor issue, but when playing around I hit it often.

Oddly, there's no Party Shuffle, which seems like a natural fit for such a device. You can choose Shuffle Songs as in iTunes, but that doesn't show upcoming or recent songs, nor allow you to add songs to the list. Likewise, you can not create "On-The-Go playlists" as with an iPod, which seems even more obvious.

I tested out photos briefly, and slideshows look great on a big screen. Now there's finally a reason for all those megapixels. When selecting background music for your slideshows, I highly recommend The Band. One note, as far as I can see, it's not possible to stream photos from a remote machine - they must be synced locally to the AppleTV.

Surprise #4: If iTunes can play it, AppleTV might be able. Or maybe not.

The line I'd seen around the web was "If iTunes can play it, AppleTV can play it." This is not the case. Certainly, AppleTV can play any audio or video you purchase from the iTunes Store. However, iTunes can play other formats through the use of third-party QuickTime plugins, while AppleTV can not be extended in this manner.

If you try and sync unsupported video content from iTunes to AppleTV, the files won't sync over. You'll get an error, indicated by a tiny /!\ symbol next to the AppleTV in the Devices list.

If you instead try to stream from a remote computer, you'll see that the files simply aren't listed. They're in the iTunes Library on the remote machine, but they don't show up as options on the AppleTV. iTunes is simply transferring the file (if supported) over to AppleTV which then handles the actual video playback. This means that support for video formats needs to be on the AppleTV itself.

Surprise #5: Video playback, including streaming, works well

"Why wouldn't it work well?", you're saying to yourself. If you've never used a media center device before, this won't be a surprise. But if you've used other devices (most of which don't have hard drive), you know about the poor quality of streaming video. Skips and glitches were common, and seeking in a file was often not possible.

With the AppleTV and its 802.11n, however, this works great. As mentioned above, the file isn't really streaming from your machine, it's being copied over and then played back locally. This means it's possible to fast-forward and rewind through the file. This seeking isn't perfect as you need to hold the button down, and it's a bit tricky. It does work, however, unlike every other media device I've seen.

When playing video on a computer, I find I prefer to jump forward or back, instead of seeking. Clicking Forward or Back does indeed jump in the file. However, this jump amount is not consistent. In an 60 minute file, it jumps 3 minutes, while in a 2 and a half minute file, it jumps 30 seconds. I often find myself wanting to skip back or forward by ten seconds, but skipping an indeterminate amount of time is not particularly useful. See updates at the end of this article

These are minor things that will hopefully be corrected, but overall the video playback is quite good. 802.11n transfer speeds are very fast, and both local and streaming video play flawlessly.

Wishlist For The Future

1) A bigger hard drive or support for external HDs

As noted, my music library alone is over 40 gigs, and video is much larger. As such, I can't use the AppleTV in a fully automated Sync mode and still have access to all my content. A bigger hard drive would be nice, but why not just let me plug in a USB hard drive? Service reasons is a pretty crummy reason for such a thing. The guess around the RA offices is that it'll be used for an input device, for gaming.

2) Personal Video Recording (PVR) abilities

I have an EyeTV, and it's great. However, as it stands, I need to take my EyeTV content from my desktop and get it to my AppleTV to play it. From a technical standpoint, adding PVR capabilities to the AppleTV seems obvious. Of course, Apple doesn't want you to - they want you to buy those shows from them. Which brings me to number three on the wishlist.

3) Purchasing from the couch

Seeing the top iTunes TV Shows, Music, and so on is fine. Now why the heck can't I buy them from the AppleTV? A 30 second preview is exactly enough to convince me to buy. Once convinced, I've got to get off my duff and go to the computer to purchase and then sync the new content over? Since I first saw the device out at Macworld, this has seemed like a very rough edge.

4) Support for more video formats

The specs page for AppleTV shows the rather paltry support the device has for other video formats. Again, Apple wants you to buy video content from them, but plenty of people get content from other places. By now QuickTime Player can play much of it, and Apple recently added a "Movie to AppleTV" Export option to QuickTime, but it's slow as molasses. Right now, if you have an unsupported video file, it's a chore to get it playing on the AppleTV.

Quo Vadimus?

For those who aren't Latin scholars or Sports Night fans, that means "Where are we going?". As far as Rogue Amoeba is concerned, we're currently evaluating how we can enhance the AppleTV. Enabling it to play any audio makes sense, and we'll be looking at that, as well as video. Whether as an update to Airfoil or a new application, we hope to improve the AppleTV experience just as we did with the AirPort Express. Join our low-traffic announcement list and stay tuned!

Updates:
3/23/07 12:30 PM There's confusion about component vs. composite, and I don't blame anyone - the words are far too similar. So, how about pictures?

That's component input. Video comes in on three cables (red, green, and blue), and audio (again) comes in on red and white cables. The AppleTV does have component output. This is the input you need on your TV.

Meanwhile, this is composite input:

Video comes in on one yellow cable (or over s-video), and audio comes in on red and white cables. The AppleTV does not have a composite output, and this input jack will not help you (at least not directly).

As well, some have asked about picture distortion. As I noted in the comments, I watched multiple video sources, including an episode of Andy Barker, PI and Luxo Jr. both from iTunes, a couple TV episodes from EyeTV that were converted by EyeTV, and a couple other music video files. These all looked fine to me, but your mileage may vary.

3/23/07 2:00 PM I emailed David Pogue about this yesterday, and he was kind enough to email me back. He says:

Hey Paul--Apple says that this setup would only work IF the standard-def screens have a "simulated widescreen" mode...

If that's the case, then my 3 year old TV (Magnavox 27" model #27MS4504R) has such a mode. I see no mention of it in the manual, but it may be automatic. I'd wager a good number of other TVs have such a mode do too.

The most basic thing here is that I was able to hook up the AppleTV to a standard tv and watch video, without obvious distortion or scrunching. Your experience may differ, so caveat emptor.

3/23/07 3:00 PM Sometimes, it helps to RTFM. When video is paused, pressing back or forward skips by, drumroll please, 10 seconds. Perfect. I still think a proportional skip is bizarre and wrong, but at least it's possible to do what I'm after.

3/24/07 11:00 AM Because my living room isn't famous enough, I snapped some pictures of this all in action, which you can see by clicking below.

iTunes-Purchased Andy Barker episode restarting

iTunes-Purchased Andy Barker episode playing

EyeTV (EyeTV 200) recorded and converted content

The Get Up Kids "Man Of Conviction" Video pulled from TGUK website

Photo slideshow MWSF 2006 image

Handbrake-ripped h.264 content Strongbad Email Disc 3 FBI warning

3/27/07 11:30 AM A list of TVs known to work properly with the AppleTV. Please leave more in the comments, and I'll update the list:

• Magnavox 27", model #27MS4504R

• Sony WEGA 32" model #KV-32FV15

• Sony WEGA 27" model #KV-27FS13 (requires manual switching to 16:9)

Link directly to this list: http://www.rogueamoeba.com/utm/posts/Article/appleTV-2007-03-22-21-30#up5-2007-03-22

Footnotes:
1. As you might expect, I do have plenty of RCA audio cables lying around.↩

2. And next to it is my Guitar Hero guitar, as mentioned in the interview I did with Ars.↩

3. My workaround is to do this in two steps. I created an AppleTV playlist and set the Apple TV to sync just that. Now, I drag my desired music there, then sync. It's clunky, but it allows me to get selected portions of my library over to the device.↩

출처: http://www.rogueamoeba.com/utm/posts/Article/appleTV-2007-03-22-21-30

semthex from Hackint0sh.org, in collaboration with AppleTVHacks.net has done it again! A complete replacement to the Mac OS X kernel has been built which allows the full version of Mac OS X to be run on an Apple TV.

Semthex wrote a processor emulation for the kernel, to sidestep the hardware restrictions that previously disallowed Mac OS X from running on the Apple TV. AppleTVHacks.net was only too happy to help out, and when it turned out we needed more testers we launched a competition to get some. Within hours we had hundreds of eager Apple TV hackers submit entries.

Several hours of testing and refining later and our tester, gimli, managed to follow the steps (included below) to get Mac OS X booting on his Apple TV (click to enlarge):

The Apple TV running Mac OS X can use the mouse and keyboard normally, and you can run regular OS X apps easily. You can use either Front Row or Back Row (or Joost, or VLC, or…) to watch content, and can use it for most things you would use a Mac for.

Tester, mk500, made a video to demonstrate it all working:

출처: http://www.appletvhacks.net/2007/04/01/mac-os-x-running-on-apple-tv/

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Meanwhile, a video of an earlier hack from the folks at AwkwardTV demonstrates an Apple TV booting from an external USB drive that has been attached to it. The hack is possible without busting into the Apple TV or removing the internal hard disk.

The AwkwardTV project is now looking to build a bootable image for USB drives based on the Open Source Darwin kernel that will allow mounting and editing the internal hard disk, paving the way for other hacks, such as enabling SSH, to be made without opening the Apple TV case.



Various other Apple TV hacks have also been documented on tech sites across the Web. A Hacking the Apple TV tutorial published over at TutorialNinjas promises to help users install Quartz, play xvid/divx encoded files, enable SSH and VNC, and run Mac OS X applications such as FireFox and Centerstage.

출처: appleinsider

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출처: http://www.engadget.com/2007/03/27/apple-tv-hacked-for-use-with-macbooks-and-usb-drives/
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Apple TV OS can now run on a Macbook! AppleTVHacks.net was able to patch to the Apple TV Finder.app, and now has an operating Apple TV:

You can use your remote as normal, it shows up in iTunes on other computers:

The method

Install a fresh copy of regular OS X (not the Apple TV version, the Mac version), or clone one. Just make sure you have everything backed up. Download a copy of the patched Finder file (we can’t help you here). Now, copy the Finder.app from your Apple TV drive, and transplant the patch file (which is just the binary part of the app) into it, and set the permissions:

cd /Volumes/OSBoot/System/Library/CoreServices/
sudo cp -pr ./Finder.app /Volume/FreshOSX/System/Library/CoreServices/.
cd /Volume/FreshOSX/System/Library/CoreServices/Finder.app/Contents/MacOS/
sudo cp /path/to/patched/Finder .
sudo chown root:wheel Finder
sudo chmod 755 Finder


Next you must copy over 2 additional Frameworks from the Apple TV to the OS X install:

cd /Volumes/OSBoot/System/Library/PrivateFrameworks/
sudo cp -pr ./iPhotoAccess.framework /Volume/FreshOSX/System/Library/PrivateFrameworks/.
sudo cp -pr ./BackRow.framework /Volume/FreshOSX/System/Library/PrivateFrameworks/.


Now, reboot and hold down Option to choose your boot drive, select the new OS X install and boot from it. You should be away:

출처: http://www.appletvhacks.net/2007/03/27/apple-tv-running-on-a-macbook/

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you can find the Hacked files here:
http://rapidshare.com/files/23171265/AppleTVHacks.rar

Or the AppleTV OS Image disk here:
http://rapidshare.com/files/23005920/OS.part1.rar
http://rapidshare.com/files/23006031/OS.part2.rar

(확인결과 링크 broken : 민)

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Semthex wrote a processor emulation for the kernel, to sidestep the hardware
restrictions that previously disallowed Mac OS X from running on the Apple TV.