IV81482 – multibos may fail to mount or remove a standby instance

This only affects users of multibos.

After creating a multibos instance and booting to it,
multibos will be unable to perform some operations
on the original (now the standby) instance.
Mounting the standby instance with ‘multibos -m’
or removing the standby instance with ‘multibos -XR’
will fail with errors about a filesystem or LV being
in use.

This fix needs to be applied before creating the
multibos instance to prevent these problems from
occuring after booting to the new instance.

If you have already booted to the new instance and
discovered that multibos is failing operations on
the standby instance as described above, then
there is a local fix which will correct things temporarily.

If the active instance is booted on the blv bos_hd5 run the
following commands:
# chfs -a dev=/dev/hd4 /bos_inst
# chfs -a dev=/dev/hd2 /bos_inst/usr
# chfs -a dev=/dev/hd9var /bos_inst/var
# chfs -a dev=/dev/hd10opt /bos_inst/opt

If the active instance is booted on the blv hd5 run the
following commands:
# chfs -a dev=/dev/bos_hd4 /bos_inst
# chfs -a dev=/dev/bos_hd2 /bos_inst/usr
# chfs -a dev=/dev/bos_hd9var /bos_inst/var
# chfs -a dev=/dev/bos_hd10opt /bos_inst/opt

Then reboot the system
# reboot

Affected AIX Levels and Recommended Fixes

Minimum Level Maximum Level APAR Fix Interim Fix
6100-09-06
bos.rte.bosinst 6.1.9.100
6100-09-06
bos.rte.bosinst 6.1.9.100
IV81503 iFix
7100-04-00
bos.rte.bosinst 7.1.4.0
7100-04-01
bos.rte.bosinst 7.1.4.0
IV81493 iFix
7200-00-00
bos.rte.bosinst 7.2.0.0
7200-00-01
bos.rte.bosinst 7.2.0.0
IV81482 iFix