AIX

would you be so kind as to help with the syntax of the fsck command so I don't screw something up anymore. i'm going to ibm's site to look myself, but would really appreciate any comments.
regards!!!

ok...ran fsck, as in, fsck /dev/hd4, where my /usr was. No error detected. type exit from maintenace mode and receive:

/etc/getrootfs[586]: /usr/bin/ksh: not found
.
.
.

seems like the os was overwritten or wiped somehow.

Ah okay, sorry, haven't recognized that at first.

So here you go:

- Enter the SMS menu
- Select "Start Maintenance Mode for System Recovery"
- Select "Access a Root Volume Group"
- Select one the VG which has the hdisks in it which looks like your rootvg, I guess hdisk0 and 1 if you have hopefully a mirrored rootvg
- Select "Access this Volume Group and start a shell before mounting file systems"
- then do following, using jfs or jfs2:

Code:

logform -V jfs2 /dev/hd8
fsck -y -V jfs2 /dev/hd1
fsck -y -V jfs2 /dev/hd2
fsck -y -V jfs2 /dev/hd3
fsck -y -V jfs2 /dev/hd4
fsck -y -V jfs2 /dev/hd9var
fsck -y -V jfs2 /dev/hd10opt
exit

Then have a reboot and hope it's working. Right from the AIX Sys Admin II: Problem Determination.

in maintenance mode, with the filesystem not mounted type:
fsck -y /dev/hd2

What was the command you used to "clean up" the file you put there...

If you did something like rm -r * or something similar you may have removed more than the one file you wanted to. In which case you will need to rebuild /usr from a mksysb or rebuild the full system.