Open Volumes Recovery Hd Com.apple.recovery.boot Basesystem.dmg

An interesting dilemma, indeed. The configuration of the Recovery HD seems convoluted and backward; why they'd put the entire startup system inside another disk image is beyond me--unless installing extra utilities is exactly what they're trying to prevent. I see two possible solutions:

  1. After backing up BaseSystem.dmgDmg another 07 848x480 big5 free. , try using Disk Utility to convert the image to a read/write format. Make your mods, and convert it back. This option, of course, is highly tricky, and it’d be difficult to keep the volume bootable.

  2. Use Disk Utility to create a new (standard, visible) partition in HFS+, and Restore from BaseSystem.dmg to it. You’ll now effectively have two recovery partitions. This new one, though, not being wrapped up in an image, should be free to add files to. It seems like Mac OS X Base System has all the requisite files for starting up from, all the way down to boot.efi. You might have to also jump through a few hoops in order to get it bootable, but it should be far more straightforward than using option 1. Once you’ve done that and tested it thoroughly, you could remove the “official” Recovery HD partition.

    Because these files can often be a few gigabytes in size, a USB flash drive is usually the fastest way to get the file to your Mac computer. What to do with old dmg file cabinets Disk Images, or DMGs, are a common way to compress large files on Mac computers, including apps.

Apple released the Lion Recovery Update in October, 2011, and, after they updated the Lion recovery partition to 10.7.2, there was a great hint from Clay Caviness who dug into the update and highlighted the the relevant files and commands that it used to accomplish this update. Recently, 10.7.3 came out, however, and the RecoveryHD partition is not updated if you use Software Update; it will.

Might I stress: I have tried neither of these, and I’m running purely on speculation based on past experience. Proceed entirely at your own risk, and only if you know exactly what you're doing!

Open Volumes Recovery Hd Com.apple.recovery.boot Basesystem.dmg

On every OS X Lion installation a hidden partition is created to enable a method for Lion to be reinstalled on the machine, it is known as the recovery partition or drive and is 650mb in size.

If you bought a new machine from Apple you have OS X 10.7 already installed – but no back up disk! and since you haven’t bought the OSX Lion 10.7 App from the App store you can’t re-download it – so thats why you have the recovery drive as a partition in your main hard drive and to boot from it you need to restart the machine holding down “command” + “r” keys.

From recovery mode you can run Disk Utility, get online help and do a restore from a Time Machine backup and re-install Lion leaving all your other files intact – it just replaces the core operating system.

You can make a bootable USB drive or disk of the recovery drive, but involves a small trip to the Terminal….

1) Launch Terminal from /Applications/Utilities and run:

The primary drive in this list is No.2 with the “Identifier” of disk0s2, the boot recovery drive is disk0s3

We can also identify the recovery drive by the name and the size – set at 650mb

2) Mount the drive:

Output should be:

Open Volumes Recovery Hd Com.apple.recovery.boot Basesystem.dmg

Now the Recovery HD is mounted in the Finder and you can see it in the sidebar under Devices
Navigate to it from the sidebar – Recovery HD/com.apple.recovery.boot/BaseSystem.dmg.

3) Doubleclick BaseSystem.dmg to mount it also in the sidebar. This will mount the volume ” Mac OSX Base System”

mac-osx-lion-base-system

Open Volumes Recovery Hd Com.apple.recovery.boot Basesystem.dmg Download

4) Open Disk Utility in /Applications/Utilities

5) Put in a 2GB+ USB drive, let Disk Utility load it. The USB drive needs to be formatted as Mac OS Extended Journaled, if its not, its time to format it in Disk Utility…

6) Finally in still in Disk Utility, select the “Restore” tab – drag the mounted volume “Mac OSX Base System” into the Source field and drag the USB drive “Volume” (mine is called SuperBootUSBDrive) to the Destination.

restore-volume-osx-usb

7) Click Restore – 25 minutes later – One bootable USB drive

Open Volumes Recovery Hd Com.apple.recovery.boot Basesystem.dmg Torrent

Your bootable USB drive will be called “Mac OS X Base System” after the restore is complete. Now to boot from it just select it as the Start Up disk in System Preferences or hold down option key on boot and select it from the choice of bootable devices.

If you have downloaded the Lion App from the App Store then you can also make a boot disk/drive from this, guide is here, you need to make the boot drive/disk before you install the Lion App, as the installer is deleted after running it. Thats why the guide here can get you out of trouble.

Couple of footnotes on this – Apple has released a knowledgebase article about the recovery partition, also just released from Apple is an app that will do the same as above.

Update For Newer Models – hidden BaseSystem.dmg

If you have the latest models from Apple that came already shipped with OSX 10.7, then you may not have the “BaseSystem.dmg” but instead see a “BaseSystem.chunklist” , the “BaseSystem.dmg” is there it’s just hidden.

To show it so you can see it in the finder – go to Terminal – enter:

Now it will be visible in the Finder.

Open /volumes/recovery Hd/com.apple.recovery.boot/basesystem.dmg

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