Shutting down a Sun System with a Shell Script
Arthur David Olson
elsie!ado at ncifcrf.gov
Fri Dec 9 21:06:12 AEST 1988
STELLABO at CSHLAB.BITNET writes:
> Is there anyway to. . .
> 1) Bring the system down to single user with the Shutdown Command
> 2) umount the /usr file systems
> 3) Perform a level (1-9) on the /usr file system. . .
No. A quick look reveals that. . .
Script started on Wed Nov 23 17:19:42 1988
elsie$ /bin/ls -l /etc/umount /etc/dump
lrwxrwxrwx 1 root 15 Oct 11 15:40 /etc/dump -> ../usr/etc/dump
lrwxrwxrwx 1 root 17 Oct 11 15:40 /etc/umount -> ../usr/etc/umount
elsie$ exit
script done on Wed Nov 23 17:19:53 1988
. . .both /etc/umount and /etc/dump are "really" on the /usr partition.
So when you try to umount /usr, the partition is "busy" and can't be
unmounted; even if you *could* unmount it, you couldn't do the dump.
To make things work right, Sun would at least get to move dump and umount
to /sbin.
Arthur David Olson ado at ncifcrf.gov ADO is a trademark of Ampex.
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