Re: strange apt-get upgrade issue
At 13:33 7/10/2002 +0800, you wrote:
On Mon, 2002-10-07 at 12:57, Chris McCormick wrote:
> At 12:41 7/10/2002 +0800, you wrote:
> >On Mon, 2002-10-07 at 12:34, Chris McCormick wrote:
> > > >You could try comparing straces of the dpkg command when it works and
> > > >when it doesn't work
> > > >
> > > >strace -fF dpkg -X packagename.deb /path/to/testdir 2>strace.output
> > >
> > > Excellent suggestion - at the moment I can't get it to run
correctly ever
> > > though. :(
> > >
> > > running:
> > > strace -fF dpkg --unpack libc6_2.1.3-24_i386.deb
> > > doesn't tell me anything i can understand. if someone more knowledgable
> > > wants to look at the copy of the output i can send it to them.
> >
> >Can you dump it on a webpage and post the URL to the list?
>
> Sure,
> http://203.59.70.242/strace_dpkg_output.txt
[pid 4582] ptrace(PTRACE_ATTACH, 4580, 0, 0) = -1 EPERM (Operation not
permitted)
[pid 4582] ptrace(PTRACE_ATTACH, 4577, 0, 0) = -1 EPERM (Operation not
permitted)
this is something tar is trying to do and failing, thus breaking the
pipe...
The same happens on the gzip call...
from man ptrace
ERRORS
EPERM The specified process cannot be traced. This could
be because the parent has insufficient privileges;
non-root processes cannot trace processes that they
cannot send signals to or those running setuid/set
gid programs, for obvious reasons. Alternatively,
the process may already be being traced, or be init
(pid 1).
Not that that helps much.
If you go
dpkg-deb --fsys-tarfile packagename.deb > packagename.tar
and then
/bin/tar xvf packagename.tar
Does it untar ok?
Hi Crispin,
Yeah that seems to work fine.
Is it a broken package that is cached? try...
rm -rf /var/cache/apt/archives/*.deb
rm -rf /var/cache/apt/archives/partial/*.deb
I have tried that countless times unfortunately :/
Does dselect fix the problems. Try running dselect, choose update, the
select. Add no new packages, just press return, then select install.
Just tried this and got the same error - it's failing on the untar.
e.g. dpkg-deb: wait for tar failed: No child processes
All just vague stabs in the dark really...
That's cool, thanks for all the suggestions anyway!
I'm suspecting i might have some kind of broken glibc action going on. I
think that it might not be able to re-attach to tar because of an actual
corruption in the library binaries that handle that kind of thing. Maybe
it's half installed and some of the hooks to do with process attaching
aren't there or some weirdness like that. Hopefully it isn't something
sinister.
I really want to see if i can solve this without a complete re-install. A
re-install of this particular system would not be too awesome at all.
If anyone else has any hints that would be great.
Thanks!
Chris.
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