Is it possible to restore a Yosemite backup to Mavericks? I downgraded and want to access my most recent restore, or else I'll have to use the Mavericks one from a month ago.
I am on a Macbook Pro 13-inch mid-2011.
MacOS – Restoring from Yosemite Time Machine backup on Mavericks
macostime-machine
Related Solutions
Unfortunately, you're not going to be able to recover that file using Time Machine. There are a number of files and directories that Time Machine does not back up—primarily cache and temporary files. This includes the files in the /tmp directory. The directory itself (minus contents) is backed up, because it is necessary for a reinstall.
The complete list of exclusions can be found in /System/Library/CoreServices/backupd.bundle/Contents/Resources/StdExclusions.plist
ᔥ Devin Lane: Time Machine Exclusions
Basically your CoreStorage Volume Group got corrupted.
Usually a simple CoreStorage Volume Group looks like this:
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 9D2BA4BA-xxxx-xxxx-xxxx-xxxxxxxxxxxx
=========================================================
Name: Macintosh HD
Status: Online
Size: 599640592384 B (599.6 GB)
Free Space: 6111232 B (6.1 MB)
|
+-< Physical Volume 29A9A02B-xxxx-xxxx-xxxx-xxxxxxxxxxxx
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 599640592384 B (599.6 GB)
|
+-> Logical Volume Family 2FA7892F-xxxx-xxxx-xxxx-xxxxxxxxxxxx
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume 7BF42B7B-xxxx-xxxx-xxxx-xxxxxxxxxxxx
---------------------------------------------------
Disk: disk1
Status: Online
Size (Total): 599282155520 B (599.3 GB)
Conversion Progress: -none-
Revertible: No
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
Your LVG is missing a Logical Volume Family and a Logical Volume.
- Restart into (Internet) Recovery Mode by pressing cmd R or alt cmd R at startup or boot from a thumb drive containing a bootable system/recovery system/bootable OS X installer.
- Start
Terminaland enter following command at the Terminal prompt:
diskutil cs list - Copy the Logical Volume Group (LVG) alphanumeric UUID of your CoreStorage volume. The LVG should be the first UUID listed and it’s the one you want to delete.
- Next, run the following command:
diskutil cs delete UUID
In your case:diskutil cs delete 5B8350BF-20EF-4199-82E6-129EFF19E9EB
This will delete your corrupted CoreStorage volume and reformat it as an unencrypted HFS+ volume. Quit Terminal - In the now opening window choose
Disk Utilityand format/partition the internal drive.
ChooseMac OS Extended (Journaled)and GUID partition table (available with theoptionbutton). QuitDisk Utility. - Plug in your
Time Machinebackup drive. - Start
Restore from Time Machine Backupand recover your old system
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Best Answer
It's unlikely that this will work - and any software that was updated will probably not understand its settings file (e.g. Mail, Messages and the like). Also, restoring everything would replace system files with Yosemite versions.
You could go into Time Machine and pull out documents and content you have created/updated while running Yosemite, and that should work OK. But restoring settings and the system is highly unlikely to end happily.
Definitely not recommended.