Re: Any idea why chroot temporarily "cannot find name for group ID 0"?

can you give the output of cat > /etc/group

On 6/30/08, David Barrett <dbarrett@xxxxxxxxxxxx> wrote:
Can you suggest why I'm seeing the following error when entering a
debootstrap chroot on a Fedora host, and why it spontaneously disappears
a few minutes later?

[root@XXXX svn]# chroot staging/www
id: cannot find name for group ID 0
id: cannot find name for group ID 1
id: cannot find name for group ID 2
id: cannot find name for group ID 3
id: cannot find name for group ID 4
id: cannot find name for group ID 6
id: cannot find name for group ID 10
I have no name!@XXXX:/#

More detail on the mystery problem is on linuxquestions.org [1], but in
short: I created two chroots on a Fedora Core 4 box using debootstrap
(hardy). The chroots work great, and one contains a webserver and the
other contains a database. Everything is awesome except after some
period of time (or some unknown activity), the www chroot temporarily
"breaks" and spits out the error above when I try to enter it.

But the real mystery is it just spontaneously corrects itself a few
minutes later, even though I make no changes to permissions or files.
For example, here's a log of me exiting a broken chroot, and then
immediately re-entering without having made any changes:

I have no name!@XXXX:/etc# exit
[root@XXXX svn]# chroot staging/www
root@XXXX:/#

Even stranger, I've experienced the 'www' chroot having this behavior
(repeatably, for several minutes) even though I can chroot into a 'db'
chroot just fine -- despite both being created with the exact same
debootstrap command.

I'm at a total loss and posting this here because I'm not sure if it's a
Debian or Fedora issue: it's happening inside a Debian chroot, but on a
Fedora host.

Any suggestions? Thanks!

-david

[1]
http://www.linuxquestions.org/questions/linux-newbie-8/chroot-temporarily-cannot-find-name-for-group-id-0-651928/



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