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Re: woody->sarge upgrades on mips: glibc vs. kernel

On Sat, Sep 04, 2004 at 08:10:34PM +0200, Guido Guenther wrote:
> On Sat, Sep 04, 2004 at 01:16:10PM +0100, Colin Watson wrote:
> > On Sat, Sep 04, 2004 at 11:54:38AM +0200, Guido Guenther wrote:
> > > On Fri, Sep 03, 2004 at 10:42:12PM -0700, Steve Langasek wrote:
> > > > It's come to my attention that on mips(el), the glibc in sarge is
> > > > incompatible with the kernel in woody, and the kernel in sarge is
> > > > incompatible with the glibc in woody.  This is an impasse that has to be
> > > > resolved for sarge's release, so that upgrades from woody to sarge can
> > > > be supported.
> > > 
> > > What exactly is the issue with kernels in sarge running on woody?

> > As I understand it, it's emulation of missing instructions on certain
> > hardware (at least, that's the case on i386).
> I was only refering to the special mips case. Sorry if this was
> confusing.

> > > I'm running 2.4.22 without any problems since several months on mips
> > > now. We could then simply add to the release notes that on woody
> > > upgrades the kernel has to be updated first, then glibc.

> > Modern kernel packages have dependencies that require a glibc newer than
> > that in woody. To break this deadlock, we need upgrade kernel packages
> But they shouldn't. I for myself introduced and then later removed this
> dependency from 2.4.22 to allow for exactly this upgrade path. Thiemo
> took over the package later and I can't find a note in the changelog
> that reintroduced this conflict.

Looking more closely at the mips Package file, I see that you're right
-- these kernel image packages don't have the versioned dependency on
modutils that others do.  But I don't understand how this can be the
case; on other architectures, this dependency is essential because old
versions of modutils cannot handle modules from newer kernels.  Are the
kernel-images provided for mips and mipsel in sid entirely monolithic?
If not, have they been tested with the modutils from woody?

Steve Langasek
postmodern programmer

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