ITEM: R5894L

bosboot fails with 0506-210 error

Question:

Env:    AIX 3.2.5.

Desc:   Running "bosboot -a -d /dev/hdisk0" fails with:

  0506-210 mkfs: the filesystem is currently mounted
  0301-155 bosboot: mkfs failed for /dev/hd5
  0301-165 bosboot: WARNING bosboot failed DO NOT ATTEMPT 
           TO REBOOT SYSTEM
  rmdir: 0653-611 directory /var/tmp/blv is not empty

Action: 

Debug the script with the following command:

  \# ksh -x /usr/sbin/bosboot -a -d /dev/hdisk0

This gave the following results:

  ...
  + state_func4
  + let act += 1
  + [ 5 -le 24 ]
  + [ 5 - ne 0 ]
  + state_func5
  + let act += 1
  + [ 6 -le 24 ]
  + [ 6 -ne 0 ]
  + state_func6
  0506-210 mkfs: the filesystem is currently mounted
  0301-155 bosboot: mkfs failed for /dev/hd5
  0301-165 bosboot: WARNING bosboot failed DO NOT ATTEMPT 
           TO REBOOT SYSTEM
  rmdir: 0653-611 directory /var/tmp/blv is not empty

This is the part of the script where it is failing:

\# Function state_func6
state_func6 () {
\# Use boot logical volume space for holding RAM file system
\# and stripped kernel. This is used for disk image only.
\# Save logical volume recovery block and install settings
\# information block.
        trap 'error_func 0' 1 2 15
        dd bs=512 count=2 if=$blvdev of=/tmp/blv2blk > /dev/null 2>&1
        [ ! -d "$blvmnt" ] && mkdir $blvmnt
        echo y | mkfs -V jfs $blvdev
        rc="$?"; [ "$rc" -ne 0 ] && error_func 42 $blvdev
        mount $blvdev $blvmnt
        } \# End of state_func6

We then ran the following commands to debug:

\# mkfs -V jfs /dev/hd5
  0506-210 mkfs: the filesystem is currently mounted.

\# mount -- /dev/hd5 is mounted on /var/tmp/blv
\# unmount /dev/hd5  --  could not find anything to unmount
\# unmount -f /var/tmp/blv  --  successful
\# mkfs -V jfs /dev/hd5  --  successful

\# bosboot -a -d /dev/hdisk0  --  failed with state_func19[3] and
                                 state_func19[9] /etc/umount not found

That part of the "bosboot" script shows:

  umount $blvdev

That /etc/umount link was missing.  We ran:

\# cd /
\# ln -s /usr/sbin/umount /etc/umount

\# bosboot -a -d /dev/hdisk0  --  original errors
\# mkfs -V jfs /dev/hd5  --  successful
\# bosboot -a -d /dev/hdisk0  --  successful

Since the "etc/umount" link was gone, the "bosboot" script
could not unmount /dev/hd5.  The "bosboot" command must
have already been executed once, in order to mount /dev/hd5
and cause the above errors.



Support Line: bosboot fails with 0506-210 error ITEM: R5894L

Dated: February 1995 Category: N/A

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