Bug#872999: qemu image built by vmdebootstrap is unbootable due to bad root=/dev/mapper/loop0p1 kernel parameter
hertzog at debian.org
Thu Sep 7 14:56:00 BST 2017
On Thu, 07 Sep 2017, Raphael Hertzog wrote:
> Is there anything that can be done by vmdebootstrap to force-trigger the
> creation of that entry even when chrooted?
Yes, "udevadm trigger" or "udevadm trigger /dev/mapper/loop0p1" works
well for that. So we have a work-around at least (thanks to Felipe Sateler
for the suggestion, thanks also to Mantas Mikulėnas who taught me about
the kernel/udev interactions).
But I'm clearly not able to go further than that, debugging the kernel
would be too time-consuming for me since I'm not a kernel developer...
so I'll stop my investigations here.
(Somehow I wonder whether this is not the result of some kernel
hardening... limiting the impact of things done within a chroot
compared to the main host. schroot also uses private bind mounts, can this
Raphaël Hertzog ◈ Debian Developer
Support Debian LTS: https://www.freexian.com/services/debian-lts.html
Learn to master Debian: https://debian-handbook.info/get/
More information about the Pkg-systemd-maintainers