- DISK IMAGE FOR MAC OS X MAC OS X
- DISK IMAGE FOR MAC OS X INSTALL
- DISK IMAGE FOR MAC OS X SOFTWARE
- DISK IMAGE FOR MAC OS X WINDOWS
The dd command is almost the same, but if and of are reversed. You also need enough local disk space for the image.Īnother option, if you can concurrently attach both disks, it to copy directly: sudo dd if=/dev/disk2 of=/dev/disk3 bs=64k This will take a long time, and there is no progress bar. Unmount of all volumes on disk2 was successful $ diskutil unmountDisk /dev/disk2 ⇐ unmount the source disk $ diskutil list ⇐ list attached disks and partitions /dev/disk2 (external, physical):Ġ: FDisk_partition_scheme *120.0 GB disk2 Open Terminal, identify the disk and unmount it: If the following warning appears, click Ignore: You can use this procedure with any drive: eq, to clone an MGC Compact Flash from one with a known password. You can check progress, while the command is running, by pressing Ctrl-T.Specifying a larger block size (bs=1m) doesn't seem to make much difference, though YMMV!.Using /dev/rdisk# (raw disk) in place of /dev/disk# is much faster.Be VERY careful with if (input file) and of (output file).If you can attach both disks, copy directly (much quicker): sudo dd if=/dev/disk2 of=/dev/disk3 bs=64k.Make sure the destination has enough space for the disk image, eg, equal to (or greater than) the source.If the copy fails due to disk errors, try using the following command at step 3:ĭd if=/dev/disk2 of=/Users/mike/diskimage.img conv=noerror,syncĭd will take much longer using this option, errors are written as NUL bytes. The second dd command is almost the same, but if and of are reversed. Sudo dd of=/dev/disk2 if=/Users/mike/diskimage.img Attach and identify the destination disk ⇒Ħ. Sudo dd if=/dev/disk2 of=/Users/mike/diskimage.imgĤ. If the installation has primary and backup signalling servers, clone one at a time to avoid service interruption. Make a working copy of a Signalling Server hard disk This option can often recover a dead hard drive, or an unreadable file, but it does not repair the error. If the operation stops with an I/O error, try to salvage all readable data with conv=noerror,sync. conv=noerror,sync tells dd to be fault-tolerant and ignore read errors (optional).bs=n sets both input and output block size (optional, default=512 byte blocks).of= specifies output path (file, or device).if= specifies input path (file, or device).
DISK IMAGE FOR MAC OS X WINDOWS
There's also a freeware version of dd for Windows available, with instructions.
DISK IMAGE FOR MAC OS X MAC OS X
For an OS installation that you can rely on to behave predictably, and not conceal deficiencies that may be diffficult or impossible to troubleshoot down the line, use a retail installer disc set.How to clone a hard disk or USB stick in the terminal.ĭd (disk duplication) is a Mac OS X command-line utility which can read raw data off a disk, even if the Mac doesn't understand the filesystem. Even if it appears to work satisfactorily for a long time, there's still a possibility that it will go to pieces on you when you happen to stress it in some particular way that is impossible to anticipate.
DISK IMAGE FOR MAC OS X SOFTWARE
There is no guarantee that mismatched hardware and software will function well, or at all, in any particular user's everyday work or in any particular one-time-only project that the user may undertake.Īll of this is to say that using a model-specific installer on a different Mac model is a gamble. A model-specific installer disc contains only the software components to support a particular hardware configuration. Whether or not you luck out will depend on how much use you make of hardware in your machine that is not supported by the OS components you've installed, which were designed to support other hardware instead.Ī retail (universal) installer checks to see what Apple hardware is present, then selects and installs the right OS components to support all of it. Some of those installations will prove to be trouble-free for Some machines other than the ones for which they were designed, and
DISK IMAGE FOR MAC OS X INSTALL
Some model-specific installer discs that will install on
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