Shutdown a zone stuck in down state

While working on a patching activity I came across an issue wherein the swap file system temporarily mounted for a zone did not get unmounted properly during the installpatchset phase.

swap                   295G     8K   295G     1%    /zones/lab-zone/lu

From the zoneadm list output, I observed that the zone to which the above file system belonged to was somehow stuck in down state.

usport-lab-g# zoneadm list -icv

  ID NAME             STATUS     PATH                           BRAND    IP

   0 global           running    /                              native   shared

   7 lab-zone       down       /zones/lab-zone              native   shared

Further investigation revealed that the zoneadmd process for the zone was still active.

usport-lab-g# ps -ef | grep zoneadmd

    root  6962  6863   0 06:31:49 pts/1       0:00 grep zoneadmd

    root 21890     1   0 06:12:45 ?           0:01 zoneadmd -z lab-zone

I forcefully terminated this process with the kill command.

usport-lab-g# kill -9 21890

usport-lab-g# ps -ef | grep zoneadmd

    root  7025  6863   0 06:32:00 pts/1       0:00 grep zoneadmd

This fixed the problem and the zone was now in the installed state as I anticipated.

[ssuri@usport-lab-g:~] $ sudo zoneadm list -icv

  ID NAME             STATUS     PATH                           BRAND    IP

   0 global           running    /                              native   shared

   - lab-zone       installed  /zones/lab-zone              native   shared

I hope this quick tip was helpful for you and I thank you for reading.