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Groups > linux.debian.bugs.dist > #1251302

Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host

From Wolfgang Zarre <lxdev12@zirdeon.com>
Newsgroups linux.debian.bugs.dist
Subject Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host
Date 2025-06-28 15:10 +0200
Message-ID <L2DtD-dMlE-3@gated-at.bofh.it> (permalink)
References <L1Cgh-d6Jq-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Sat, 28 Jun 2025 12:54:43 +0200 Chris Hofstaedtler <zeha@debian.org> wrote:
> Unfortunately making the chroot /dev readonly makes resulting VM 
> images unbootable. update-grub should put root=UUID=... into 
> grub.cfg (as before), but now puts root=/dev/mapper/loop..., which 
> cannot work for obvious reasons.
> 

Thanks a lot for looking at it and obviously, this is absolutely clear that
root=/dev/mapper/loop.. cannot work.

Maybe I should have mentioned, that I bootstraped with grub disable to a mounted image
file with UKI images for a Secure Boot environment, which can run in VM and on real
hardware.


> Ideas welcome.
> 
I'll have a closer look at this issue next week because I'm really interested in solving
this issue due to the fact that I use grml-debootstrap a lot and maybe sometime in the
future even with a grub loader.

I'll inform you as soon as I have an idea.

Wolf

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Thread

Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host Wolfgang Zarre <lxdev12@zirdeon.com> - 2025-06-25 19:40 +0200
  Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host Wolfgang Zarre <lxdev12@zirdeon.com> - 2025-06-25 21:20 +0200
  Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host Chris Hofstaedtler <zeha@debian.org> - 2025-06-28 13:00 +0200
  Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host Wolfgang Zarre <lxdev12@zirdeon.com> - 2025-06-28 15:10 +0200
  Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host Wolfgang Zarre <lxdev12@zirdeon.com> - 2025-07-03 11:00 +0200
    Bug#1108311: grml-debootstrap allows to modify ownership in /dev on the host Chris Hofstaedtler <zeha@debian.org> - 2025-07-03 12:40 +0200

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