Bug#1040899: debian-cd: "Failed to mount /target/proc" during GRUB installation

[Gioele Barabucci]

Package: debian-cd
Severity: important

Hi,

installing Debian 13 testing using today's image [1] always fails at the
boot loader installation stage with the error "Failed to mount
/target/proc". After this message is shown, GRUB is left uninstalled and
it is not possible the boot the system.

Running `mount` in a shell shows that /target/proc is already mounted.

This error occurs regardless of the installation method (tested with
graphical, tui, expert install).

Choices: All default answers except:

* Language: C
* Zone: Europe/Germany
* Software selection: SSH server + standard sys utils

[1]
https://cdimage.debian.org/cdimage/daily-builds/daily/20230712-1/amd64/iso-cd/debian-testing-amd64-netinst.iso

[Roland Clobus]

Control: affects 1039710 debian-cd

Post by Gioele Barabucci
installing Debian 13 testing using today's image [1] always fails at the
boot loader installation stage with the error "Failed to mount
/target/proc". After this message is shown, GRUB is left uninstalled and
it is not possible the boot the system.

This was also reported in #1039710, but diagnosis is hindered by an
empty syslog which needs to be resolved first.

With kind regards,
Roland Clobus

[arizona.rover]

syslog reactivated using instructions from #1039710

Jul 19 08:24:08 main-menu[256]: INFO: Menu item 'grub-installer' selected
Jul 19 08:24:08 Success mounting /target/proc
Jul 19 08:24:08 Success mounting /target/sys
Jul 19 08:24:09 error: Error creating /target/sys/firmware/efi/efivars
Jul 19 08:24:49 (process:5127): mkdir: can't create directory '/target/sys/firmware/efi': Operation not permitted
Jul 19 08:24:49 main-menu[256]: WARNING **: Configuring 'grub-installer' failed with error code 1
Jul 19 08:24:49 main-menu[256]: WARNING **: Menu item 'grub-installer' failed

[Debian Bug Tracking System]

Your message dated Fri, 6 Oct 2023 15:14:59 +0200
with message-id <9820fdd3-6176-44bc-8bd8-***@svario.it>
and subject line Re: Bug#1040899: debian-cd: "Failed to mount /target/proc" during GRUB installation
has caused the Debian Bug report #1040899,
regarding debian-cd: "Failed to mount /target/proc" during GRUB installation
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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