Re: custom package error: dpkg -P tries to remove /opt
"Roberto C. Sanchez" <email@example.com> writes:
> Mike Fogel wrote:
>> $ dpkg -P custom-package
>> ... removal goes perfectly until this error/warning....
>> dpkg - warning: while removing custom-package, unable to remove
>> directory `/opt': Device or resource busy - directory may be a mount
>> point ?
> Hello Mike,
> This question is really more appropriate for debian-user. However, the
> message you see from dpkg is just that, a warning. Whenever a Debian
> package is removed and there are no packages left with files in a
> particular directory, dpkg tries to remove the directory. Of course, it
> doesn't do an rm -rf (thankfully), so directories that are still
> populated can't be removed. You see this, for example when removing a
> kernel-image package after you have added your own modules that are not
> part of a package under the control of dpkg.
> Anyhow, the warning is relatively harmless and can be safely ignored.
> (I hope that all of this is correct. If I messed somethig up, someone
> please let me know.)
You are more (theoreticaly) or less (practicaly) correct. Dpkg tries
to remove dirs when nothing in /var/lib/dpkg/info/*.list contains it
anymore. But dpkg also sometimes removes dirs from *.list on remove
(not purge) while the package still has conffiles in there (leading to
the 'dir not empty' warnings).
The bigger question is: Why is no package containing /opt? Shouldn't
that be in base-files like all the other core dirs?