I presume that my changes brought the delta to a small enough size that it fit in the remaining free space on the backup disk. I didn't have to launch the backup, it automatically retried. The info from Disk Inventory X also led me to delete a bunch of large unused files.Īfter the two changes listed above, the backup proceeded successfully. I excluded these from the backup using "Time Machine" > "Options" > "Exclude these items from backups". I used Disk Inventory X to look at the contents of my hard disk, and identified a few large folders which didn't need to be backed up. I realized this when I looked at the disk contents and saw that there was only one backup folder under Backups.backupdb. The problem turned out to be that the disk contained only one (large) backup, and didn't have room to store the current delta (delta = changes to files since last backup). Hopefully you will have a LOT less than 294 GB to put back this time.This happened to me recently I was pretty annoyed because I expected that if there wasn't enough space, Time Machine should just delete the oldest backup. If you can manage to get back to where you were before you started, possibly by reinstalling Lion but waiting to install 10.7.1 until later, try the steps I listed above. If TM restore fails for any reason, restore from crashplan or whatever secondary backup you used.When prompted for migration, pick the fresh TM backup you made in step 3.Pick the new Macintosh HD when prompted.Quit disk utility and start the install.wipe Macintosh HD by using the erase command and set it to HFS+ (Journaled).Launch disk utility from the file menu before allowing the install to proceed.Hold down option and pick either the Lion recovery partition, Lion recovery USB or a MacOS install DVD.Once you are certain all your backups are safe, reboot. Check the integrity of both (or more) backups.Make a second backup using crashplan, or something other than TM.Delete any unneeded ones (making sure they aren't needed by the OS!).Grand Perspective freeware is good for this. Survey your Macintosh HD to find out which files are using the most space. You didn't take the time to clean out your files so everything would fit afterwards. I think you skipped an important step before doing the clean install. Did you really have 300 gig worth of stuff or did Time Machine make a backup of some junk files? It would be a shame to have your backup get corrupted before you manage to get everything you need out of it. Changing something inside might make it not work when you finally figure out things to do a normal migration.ĭon't turn Time Machine back on until you have all this sorted out. DO NOT write to the Time Machine backup for any reason. Without those, all I can suggest is manually dragging files out of your TM backup.Ģ - mount the TM backup so that "Time Machine Backups" is showing on your desktop.ģ - navigate to the backup folder (probably called your mac.sparsebundle) and pick "show contents"Ĥ - you should now be able to browse inside for files by date - only do this sparingly to "get you by" until you figure out the main problem so you can do a normal migration. You still haven't provided a few details: How big is your HDD? How much free space was there before you started? Did you create any partitions now that weren't there before? You might have to start over and delete those partitions and create a new, larger Macintosh HD partition so you can use migration.
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