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Bug#611569: apt-cdrom doesn't work on GNU/kFreeBSD

On Tue, Feb 01, 2011 at 06:38:38PM +0100, Michael Vogt wrote:
> On Tue, Feb 01, 2011 at 12:26:02PM -0400, Joey Hess wrote:
> > Michael Vogt wrote:
> > > That is a problem with apt then, I attached a patch that should fix
> > > it and will upload that tonight. I guess the libudev support shadowed
> > > this problem on the other arches.
> > 
> > d-i installs a 00CDMountPoint apt config file containing:
> > 
> > Acquire::cdrom {
> >   mount "/media/cdrom";
> > }
> > Dir::Media::MountPath "/media/cdrom";
> > 
> > This is left behind in the installed system BTW. I don't like that, but
> > we've been working around apt's lack of FHS adherence for quite a while.
> Sounds like one more reason to fix it in apt and ensure it points to
> /media/cdrom 

How about older Debian installs where it was /cdrom?  Do you want to
break those?  Having d-i change the config of new apt installs is fine,
but changing what the default in apt is will break older systems which
don't have /media/cdrom in fstab.

> > So I doubt that your patch will help, it only seems to set the same
> > Acquire::cdrom setting that we already have. (BTW, the reason we set
> > Dir::Media::MountPath too is that apparenly "apt doesn't consistently
> > read from the [former] one.")
> This is a bit confusing indeed. The Acquire::cdrom::mount is the mount
> point used when libudev is not available. The Dir::Media::MountPath is
> used when libudev is availabe, it does not need fstab then, it will
> mount all cdroms it finds and check if the signature match. This
> should probably simply be merged.
> > Looking at the syslog, apt says it's going to use /media/cdrom as
> > the moint point but then mount seems to be run with /cdrom.
> > Screenshot of this weirdness attached.
> I don't have a screenshot here. But I'm downloading a image now in
> order to reproduce.
> > I see that the generated fstab on kFreeBSD contains:
> > 
> > /dev/cd0	/media/cdrom0	cd9660	ro,auto		0	0
> > 
> > Why is the mount point different? I don't know yet. If I correct this
> > to use "/media/cdrom0", then apt-cdrom add works in d-i with no further
> > changes.
> Would it make sense to add a /media/cdrom symlink? And then the admin
> can adjust it if he/she has multiple cdroms? Ideally we would use a
> dynamic solution but because of the lack of a portable one apt uses
> dlopen() on libudev instead of depending on it.
> > FWIW, this seems close to RC for d-i kFreeBSD, since it makes most
> > of the CD images useless (they still work, but most of the bits on the CD
> > are not used since it falls back to a mirror), and introduces a error
> > dialog into the installation process when installing with most of the CD
> > images.
> I agree, its a important issues on kfreebsd.

Len Sorensen

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