Saturday, March 28, 2009

Time Machine preparing

James Meister on 18. helmikuuta 2009 at 13.41 +0200 wrote:
I did an erase and re-install of Leopard Server software about 10 days
ago complete with all the updates.
Ever since, when I try to get Time Machine to back up to any of the 3
external hard drives attached to the server, it continually "prepares"
the disk.
This latest attempt at backing up to a hard drive that has been
previously used as the Time Machine back up hard drive has been
"preparing" for 3 full days.

The drives have been inspected and found to be OK via disk utility,
and in the case of one disk, re-formatted twice.

Any ideas except another erase and install?


I have one server that has been doing this sometimes, I don't know what causes it but I managed to get it working by unloading and loading Time Machine launch daemons like this:

sudo launchctl unload /System/Library/LaunchDaemons/com.apple.backupd-attach.plist
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.backupd-auto.plist
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.backupd-wake.plist
sudo launchctl unload /System/Library/LaunchDaemons/com.apple.backupd.plist

sudo launchctl load /System/Library/LaunchDaemons/com.apple.backupd-attach.plist
sudo launchctl load /System/Library/LaunchDaemons/com.apple.backupd-auto.plist
sudo launchctl load /System/Library/LaunchDaemons/com.apple.backupd-wake.plist
sudo launchctl load /System/Library/LaunchDaemons/com.apple.backupd.plist

Then try to start backup manually.

I haven't tested if it's necessary to unload all of them or just com.apple.backupd.plist but that's the one that finally stops the 'preparing' state. The server has been backing up for weeks since the last time I had to do this.


-Perttu
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