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Groups > linux.debian.user > #261700

Re: usrmerge on root NFS will not be run automatically

From Marco <lists@homerow.info>
Newsgroups linux.debian.user
Subject Re: usrmerge on root NFS will not be run automatically
Date 2023-09-15 23:40 +0200
Message-ID <HeoHD-9enF-7@gated-at.bofh.it> (permalink)
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On Fri, 15 Sep 2023 17:55:06 +0000
Andy Smith <andy@strugglers.net> wrote:

> I haven't followed this thread closely, but is my understanding
> correct:
> 
> - You have a FreeBSD NFS server with an export that is a root
>   filesystem of a Debian 11 install shared by multiple clients

Almost. It's not *one* Debian installation, it's many (diskless
workstations PXE boot). Each host has it's own root on the NFS.
Some stuff is shared, but that's not relevant here.

> - You're trying to do an upgrade to Debian 12 running on one of the
>   clients.

Not on one on *all* clients.

> - It tries to do a usrmerge but aborts because NFS is not supported
>   by that script?

Correct. Strangely the usrmerge script succeeded on one host. But on
all others it throws errors. Either relating to NFS being not
supported or because of duplicate files.

> If so, have you tried reporting a bug on this yet?

No I haven't. As far as I understand it's a known issue and the
developer has decided to just have the script fail on NFS.

> If you don't get anywhere with that, I don't think you have much
> choice except to take away the root directory tree to a Linux host,
> chroot into it and complete the merge there, then pack it up again
> and bring it back to your NFS server. Which is very far from ideal.

I'll try to solve the conflicts manually. If that fails, that's what
I have to do, I guess. I didn't expect that level of fiddling with
system files for a simple upgrade. But hey, here we are now.

> The suggestions about running a VM on the NFS server probably aren't
> going to work as you won't be able to take the directory tree out of
> use and export it as a block device to the VM.

Indeed.

> The option of making the usrmerge script work from FreeBSD might not
> be too technically challenging but I wouldn't want to do it without
> assistance from the Debian developers responsible for the script.

I won't do that. I don't speak Perl and will not rewrite the
usrmerge script.

Marco

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    Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-10 18:50 +0200
      Re: usrmerge on root NFS will not be run automatically Javier Barroso <javibarroso@gmail.com> - 2023-09-11 17:30 +0200
    Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-14 16:30 +0200
      Re: usrmerge on root NFS will not be run automatically Dan Ritter <dsr@randomstring.org> - 2023-09-14 17:20 +0200
        Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-14 18:10 +0200
        Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-14 20:30 +0200
          Re: usrmerge on root NFS will not be run automatically Stefan Monnier <monnier@iro.umontreal.ca> - 2023-09-14 23:00 +0200
            Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-15 14:00 +0200
              Re: usrmerge on root NFS will not be run automatically Stefan Monnier <monnier@iro.umontreal.ca> - 2023-09-15 15:30 +0200
        Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-14 22:20 +0200
          Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-10-03 13:50 +0200
        Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-15 14:00 +0200
          Re: usrmerge on root NFS will not be run automatically Andy Smith <andy@strugglers.net> - 2023-09-15 20:00 +0200
            Re: usrmerge on root NFS will not be run automatically Marco <lists@homerow.info> - 2023-09-15 23:40 +0200
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