On my G5 2.7, the internal 250 GB HD is partitioned as follow: 80 GB for OS X and applications and restant partition for data storage. I want to clone the 80 GB to an external firewire HD (for testing softwares before install them on the "good partition"). So i had restarted from an external disk with OSX 10.4.1 and using Disk Utility (source: the 80 GB, destination: external FW) i got an error. The destination FW disk is 75 GB (maybe is too small?). When i use disk utility to save the 80GB on a partition .dmg, i have no probems. I can restore the partition .dmg on the same HD but if i try to restore the .dmg partition on an external 75 GB firewire i got an error. Any help? Thanks Max
Hey Max -
Have you tried SilverKeeper 1.1.3 from LaCie? It's freeware and makes bootable backups. Of course if your 80GB partition holds too much to fit on a 75GB external drive it won't help, but if the data will fit, this should help. You can get it from VersionTracker.com (
http://www.versiontracker.com/dyn/moreinfo/macosx/14521). I used it to make a bootable copy of my powerbook on an external firewire drive so that I could do a clean re-install. Worked like a charm.
- Brian
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Brian -- MacOSX.com Technical Support
Hey Max -
Ok, I understand what you mean - unless you get the "block-by-block" copy something gets lost which causes you to have to re-register your software. The problem with block-by-block is that you do need a target volume the same size or larger than the volume you wish to copy, I know of no way around that. You could shrink your existing partition but of course to do that you need a backup, unless you invest in a commercial product which can do it without erasing your data. One such product is VolumeWorks by SubraSoft (
http://www.subrosasoft.com) which claims to be able to do just that, for $60. I haven't used it so i can't vouch for it, although a demo is available for download. As with any partition resizer however, it is usually wise to get a backup by some other means.
Another option of course would be to perform a backup to your firewire drive using SuperDuper or SilverKeeper, verify that it was sucessful and then repartition your internal drive to make it say 70GB. Then restore your backup and re-authorize your software. You'd only have to do this once. At this point you could go ahead with Disk Utility and make the bootable clone we wanted in the first place. Hope this helps! I'll be happy to put this question back into the open pool if you'd like another tech's opinion also, just let me know.
- Brian
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Brian -- MacOSX.com Technical Support