[Pkg-gpm-devel] Bug#291155: dpkg-reconfigure with read-only /usr?

[Peter Samuelson]

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[Federico 'Derfel' Stella]
> In all my machine /usr is mounter read-only and remounted read-write by
> Dpkg::Pre-Invoke in apt.conf. I use this kind of conf by years and I expect
> a package to not touch /usr during re-configuration.

Well, dpkg-reconfigure runs the config and postinst scripts, if
present, for any package.  My system has 55 postinst scripts that call
'install-info', not to mention 66 postinst scripts that call
'update-alternatives' (which might well need write access to /usr).
There could be several other reasons a read-only /usr might break that
I haven't thought of.

So on my system there are 106 packages that potentially have this
behavior.  Nobody special-cases dpkg-reconfigure.  Thus it's clear to
me that nobody expects dpkg-reconfigure to avoid touching the /usr
filesystem.

Feel free to take this to debian-devel, though, if you still disagree.
I'm a reasonable person and I'll be happy to fix gpm if other people
agree that this goal is worthwhile.

Peter

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