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The disk label (VTOC) is kept on the block 0 of cylinder 0. The label will eventually
get overwritten by database programs using raw partitions if the raw partition
begins at cylinder 0. (Unix filesystems avoid this area of the partition.)
Action
The workaround is to go into format and get the backup label using the backup
command. Relabel the disk using this backup label. You should then be able to
access the disk.
Backup the data on this disk.
Go back to the disk and relabel it, starting the raw partition at cylinder 1 (This looses
one cylinder, but prevents corrupting the VTOC).
Label again.
Restore the data from your backup.
could not grant slave pty
Cause
User gets the error message: could not grant slave pty when attempting a
telnet(1), rlogin(1), or rsh(1) session (anything that requires a shell) or when
trying to bring up an x-term.
Action
The user’s file permissions were set wrong on /usr/lib/pt_chmod. The user had:
# ls -la /usr/lib/pt_chmod
---s--x--x 1 bin bin 3120 May 3 1996
The permissions should be:
# ls -la /usr/lib/pt_chmod
---s--x--x 1 root bin 3120 May 3 1996
Note that the owner should be root, user had bin as the owner. Also note that the
setuid bit must be set. Once the user did a chown root pt_chmod, everything
worked again.
Alphabetical Message Listing 43