Apple Server Diagnostics - Manual (Page 23)

Chapter 3 Starting Up Server Diagnostics 23
You need to be able to authenticate as the root account in order to change the startup
disk using the command-line interface.
Note: The Terminal commands described in this task are case-sensitive, and must be
entered as shown.
To change the startup disk using the command-line interface:
1 Open Terminal (located in /Applications/Utilities/).
2 If you want to connect to a remote server, enter the following in the Terminal window,
and authenticate when requested:
ssh username@serveraddress
Replace username with the short name of a user who can authenticate as the root
account on the server. Replace serveraddress with the URL, IP address, or host name
of the server.
3 Enter the following, and then authenticate as the root account:
sudo bless -folder "/Volumes/volumename/System/Library/CoreServices"
-setBoot
Replace volumename with the name of the volume you want to start up from.
When you’re done using Server Diagnostics, change the startup disk back to the
volume you were using previously.
Changing the Startup Disk Using Apple Remote Desktop
If you have Apple Remote Desktop, you can change the startup disk of remote
computers to an internal volume or connected portable storage device volume.
For information about using Apple Remote Desktop to set a computer’s startup disk,
see the Apple Remote Desktop Administrator Guide, located at:
www.apple.com/remotedesktop
Changing the Startup Disk Temporarily at Startup
If your server has trouble starting up Mac OS X Server or doesn’t have Mac OS X Server
installed, you can temporarily change the startup disk by holding down a key while
the server is starting up. This method requires that you have a keyboard and mouse
attached to the server and that you can restart the server.
If you don’t have a keyboard and mouse attached to the server, use the instructions in
the next section, “Starting Up a Server Diagnostics EFI NetBoot Image Using the Xserve
Front Panel.”
If a firmware password is set, you can’t temporarily change the startup disk by holding
down the D or F1 key. You can do it by holding down the Option key, but you must
authenticate with the firmware password.