Information Technology Reference
In-Depth Information
Among the changes that could trigger this condition are:
•
Restoring your entire disk (not just a few files or folders) from a
Time Machine backup
•
Having your logic board replaced
•
Changing your Mac's name in the Sharing pane of System
Preferences
In these cases, you can retrieve files from that previous set and
even reconnect Time Machine to your current disk. See the sidebar
Restarting Time Machine Backups after a Restore
, earlier, for details.
Find Missing Volumes
If you're using an external drive that has been set up as described in
Prepare Your Hard Drive
and is connected directly to your computer,
it will almost certainly appear in Time Machine's list of potential
destinations. (If it doesn't, try turning it off and back on, disconnecting
and reconnecting it, or both.) If you're looking for a network volume—
an external drive connected to another Mac—and it's not in the list,
check the following:
•
Can your computer see the other Mac on the network? To find out,
look in the sidebar of any Finder window. You should see the other
Mac's name listed there. If you don't see it, check the following:
‣
Is the computer to which the drive is connected on and awake?
‣
If using wireless networking, do both computers have Wi-Fi
turned on and connected?
(If you mount the network volume, it still won't appear in the
sidebar if the sidebar isn't configured to show it. Choose Finder >
Preferences to check which items will display in your sidebar.)
If the computer does show up in your sidebar, continue with:
•
Is the volume
mounted
on your Mac? To check this, select the
computer name in the sidebar. A list of shared folders and volumes
appears. If you see “Connected as: Guest,” click Connect As and
