While attempting to install a Sun package this week, I encountered the following error:
$ pkgadd -d . MYpackage
## Waiting for up to <300> seconds for package administration
commands to become available (another user is administering packages on
zone `zoneA`)
^C
1 package was not processed!
After a bit of truss'ing, I noticed that the pkgadd commands were checking for
the existence of files with the name
.ai.pkg.zone.lock.DYNAMICALLY_GENERATED_STRING in /tmp. Based on a cursory
inspection of the package utility source code, it appears these files are used
as lock files to prevent multiple package commands from running at the same
time. Since this was the only package installation running on the system, I
logged into the zone and removed the stale lock file:
$ zlogin zoneA
$ rm /tmp/.ai.pkg.zone.lock-afdb66cf-1dd1-11b2-a049-000d560ddc3e
Once I removed this file, the package installed like a champ! Nice!