![]() Mount partition using alternate superblockįind out superblock location for /dev/sda2: At boot: prompt type command linux rescue). If your system will give you a terminal type the following command, else boot Linux system from rescue disk (boot from 1st CD/DVD. The XLab FAQs and read the FAQ on backup and restore.WARNING! Make sure file system is UNMOUNTED. However, there are many backup utilities that can create clones, perform incremental updates, and archive changed files. I'm not a big fan of TM, although I must confess it has become more reliable since it's release, especially with Snow Leopard. Each clone should be to a space equal to the capacity of the cloned drive.ģ. Of course you need a drive large enough to accommodate each clone. Each clone must be on a separate volume, but you can have multiple volumes on a single drive simply by partitioning the drive accordingly. You cannot put multiple clones on the same volume. They also can be subject to file corruption that affects the entire disc image, whereas file corruption on a clone would only affect certain files.Ģ. For reasons I don't know disc images seem to become more fragile the larger they get. Sorry to ask for more, and many thanks again for the help!ġ. What technique would you recommend for a periodic, supplemental, archive-style backup in a small home office situation? * I use Time Machine on a Time Capsule, but am a little nervous about some flakey behavior - occasional backup errors requiring creating a new backup, blanked out "most recent backup," etc. * Can multiple clones of a drive be placed in a single partition? (I have multiple computers to back up, and find that partitioning effectively limits how effectively I can use space on my drive.) by Carbon Copy Cloner) that makes it less vulnerable to mounting failures, corruption, and other problems with disc images created by Disk Utility? If you have a moment, I would also appreciate your thoughts on a couple of follow-up questions: I very much appreciate the detailed step-by-step instructions on drive preparation. Thank you for the thorough, informative, and all-around excellent response. Steps 4-6 are optional but should be used on a drive that has never been formatted before, if the format type is not Mac OS Extended, if the partition scheme has been changed, or if a different operating system (not OS X) has been installed on the drive. The format process can take up to several hours depending upon the drive size. Options button, check the button for Zero Data and click onĮrase button. ![]() Set the format type to Mac OS Extended (Journaled.) Click on the Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Partition button and wait until the process has completed.Ĥ. ![]() ![]() Options button, set the partition scheme to GUID (for Intel Macs) or APM (for PPC Macs) then click on the Under the Volume Scheme heading set the number of partitions from the drop down menu to one. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Open Disk Utility in your Utilities folder.Ģ. Since this is a new drive I would recommend you re-prep the drive as follows:ġ. Using software like Carbon Copy Cloner, for example, you can even incrementally backup any changes to the source drive (provided you have adequate space on the drive.)Įrror -61 is a write permissions error. Much better and safer to simply clone the drive to a separate partition on your backup drive. Disc images could fail to mount, become corrupted either during or after creation, and present many future problems. ![]() Using disc images to backup an entire drive is time consuming and risky. ![]()
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