Just had this happen to me, error -69842 on a FileVault encrypted mid-2013 MacBook Air, and I spent a fair bit of time on it the last few days. I tried Recovery Mode, Target Disk Mode, fsck_hfs, and DiskWarrior with no luck. Disk Utility gave me an error 'Invalid thread record' or something like that. DiskWarrior indicated it was a 'disk hardware failure'. When i connected via usb direct i could see the folders as they should be. It was a corrupted FileVault volume no doubt. Within this window, you may need to scroll down to find the 'Update & security' button. You can also access your Windows settings by using the Windows shortcut keys Windows + I. You can also boot your computer from the Disk Warrior CD and run it from. Navigate to your Windows start menu and select 'Settings' on the left panel. To boot from the DiskWarrior flash drive on a newer Mac, you need to boot to your Recovery partition and then run a Terminal command to launch the software. I was finally able to get at my files by booting up in single-user mode. How to Create a Mac OS X USB Boot Drive in Recovery Mode Watch on 1) Launch Disk Utility 2) Click Burn (upper left) 3) Navigate to and select DiskWarrior 4.4 Boot.cdr file (do not drag and drop) 4) Click CHOOSE or BURN 5) Insert disk when prompted and BURN Boot Put your DiskWarrior DVD into the drive and reboot. You'll have to pick a user and enter your password, then it'll drop you to command line. The encrypted volume that would otherwise fail to mount with Disk Utility or 'diskutil coreStorage unlockVolume' will be already mounted in your Unix shell. Apparently single-user mode bypasses whatever filesystem check is failing when an error unlocking occurs. Perhaps this is because no fsck is being run, I'm not sure. I was able to get my files off this way using a connected USB drive. Run mount -uw / & mkdir /Volumes/usb, then plug the USB in and do ls /dev/disk* to find the name. Mine was /dev/disk2s2, so mount_hfs /dev/disk2s2 /Volumes/usb and I had a way to copy files off. Use mount_msdos instead of mount_hfs if you formatted it for non-Mac use. I bought DiskWarrior months ago when I read a very favorable review and decided that it is an invaluable. I selectively copied user folders one thumbstick at a time, but if you have a large enough USB drive attached then just do a tar czpf /Volumes/usb/Users-backup.tgz /Users to get a copy of the entire /Users folder in tar-gzip format. Recreating the FileVault volume is necessary.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |