[Libguestfs] libguestfs-test-tool on ubuntu: kernel panic

[David Konerding]

Short summary:
my umask was set to 0027 and this was causing tar to extract the files with
screwed up permissions.

On Wed, Aug 10, 2011 at 12:09 PM, Richard W.M. Jones <rjones at redhat.com>wrote:

> On Wed, Aug 10, 2011 at 11:27:34AM -0700, David Konerding wrote:
> > This fetches bash, dash, and a number of other packages.  It reports:
> > 1719 files and directories
> > febootstrap: warning: some host files are unreadable by non-root
> > febootstrap: warning: get your distro to fix these files:
> >         /bin/bash
> >         /bin/cat
> >         /bin/chgrp
> >         /bin/chmod
> > ...
> >
> > There are 1361 files in the list.
>
> I went back to febootstrap from git, recompiled with the latest
> version, and also made sure my Ubuntu 11.04 system was fully up to
> date and had been rebooted.
>
> './febootstrap -v --names bash' downloaded 42 packages from natty.
> There were no warnings about unreadable host files.
>
> It seems clear enough to me that the warnings you are seeing are the
> root cause of your problems.  The test that is failing is 'mode & 004 ==
> 0',
> so either mode is being read incorrectly, or that test is failing.
> The mode of /tmp/.../bin/bash (-rwxr-xr-x == 0755) would appear to be
> correct.
>
> I'm afraid I don't know why you're seeing these warnings.  I think
> your best bet would be to grab febootstrap from git, sprinkle a few
> printf statements around, and try to see what's going on.
>
> > > If base.img and hostfiles look reasonable, try building an appliance
> > > from them:
> > >
> > >
> > Looking at hostfiles, there is no /bin/bash, but there is /bin/sh and
> > /bin/rbash (BTW, Ubuntu uses dash as the main /bin/sh, not bash, but I
> > assume that's not relevant).  sh is a symlink to bash, as is rbash.
>
> Because of the warning above, febootstrap doesn't include the
> filenames in hostfiles:
>
>
> http://git.annexia.org/?p=febootstrap.git;a=blob;f=febootstrap.ml;h=7e48206e88ac6e3f97a9cda80fbcb3a16c80074e;hb=HEAD#l247
>
> > I extracted base.img, and it doesn't include any files in /bin.  It looks
> > like all the files in that archive are text/config files or symlinks.
>
> This is correct.
>
> Rich.
>
> --
> Richard Jones, Virtualization Group, Red Hat
> http://people.redhat.com/~rjones
> virt-top is 'top' for virtual machines.  Tiny program with many
> powerful monitoring features, net stats, disk stats, logging, etc.
> http://et.redhat.com/~rjones/virt-top
>
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