You can use this procedure with any drive: eg, 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: sudo dd if=/dev/disk2 of=/dev/disk3 bs=64k.Make sure the destination has enough space, eg, is equal to (or greater than) the source size.

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 By adding sync, errors are padded with zero's (optional) bs=n sets both input and output block size (optional, default=512 byte blocks).Posting this here for the sake of documentation, but maybe there are other easier way to do it. Use CCC to clone my 25GB Tiger partition I still had from the 60GB disk image, to that empty 28GB HFS+ partition. I had that 28GB empty HFS+ mounted on the desktop. Reboot the MacBookPro in SnowLeo (that one has triple install 10.6/Debian/Window7, very handy). Use GParted to erase both the 25GB HFS+ Tiger partition and the 4GB empty space, and reformate both into a single HFS+ partition, not touching at all the Linux, Swap, yaboot partitions that are at the beginning of the ssd.

Connect it via FireWire to a MacBookPro running Debian. Only way I managed to have all these 28GB for my Tiger partition was to : And GParted can format to HFS+ but CAN'T expand an HFS+ partition. The image being copied block by block (dd), apparently Disk Utility sees that Tiger partition as being on a 60GB disk, while there is still 4GB empty, nor did it agree to format that partition. Disk Utility doesn't want to do it, nor GParted in Linux. So I thought booting the Ti in target mode connected again to the MBP, I could expand the HFS+ Tiger partition on that empty 4GBs. So I had a 25GB size Tiger partition and 4GB empty space at the end of the ssd partitions table. So I cloned the hd disk image on the ssd, all went fine, Ti booted fine on both Tiger and Debian.īut. Well well, it was a longer journey than I thought it would be.

Mac os x linux clone