XPost: linux.debian.bugs.dist 
 From: jootuom@gmail.com 
  
 Package: installation-reports 
 Tags: d-i 
  
 Boot method: DVD 
 Image version: debian-13.0.0-amd64-DVD-1.iso (customized) 
 Date: 2025-08-10 
  
 Machine: Hyper-V / VirtualBox VM 
  
 Not sure whether this is classified as a Debian Installer or apt problem: 
  
 I've been creating a customized installation ISO image with a preseed file 
 for several versions. 
  
 My configuration was working fine until Trixie, i.e. it works in <=Bookworm. 
  
 I copy a custom sources.list during installation with a late_command: 
  
 > d-i preseed/late_command string \\ 
 >     cp /cdrom/custom/conf/sources.list /target/etc/apt/sources.list 
  
 The sources.list obviously doesn't contain the cdrom entries. 
  
 This breaks on Trixie, on step "Finish the installation", it will start 
 prompting for an install media in a loop: 
  
 > Please insert the media labeled '' and press enter. 
 > *Media change* 
  
 According to console output, this is caused by 
 /usr/lib/finish-install.d/08hw-detect: 
  
 > finish-install: info: Running /usr/lib/finish-install.d/08hw-detect 
 > ... 
 > in-target: E: Unable to locate package hyperv-daemons 
 > load-install-cd: E: failed to mount the cdrom. 
  
 The virtualization packages (e.g. hyperv-daemons, virtualbox-guest-utils) 
 are not even available on (at least) the DVD1 media? 
  
 Also, it should be able to find & mount my DVD by label too, because I 
 configure it into $MEDIA/.disk/info (the error message displays the correct 
 custom label for the media) 
  
 So, both errors appear to be irrelevant. 
  
 Regardless, as a workaround, I added a preseed early_command: 
  
 > d-i preseed/early_command string \\ 
 >     rm /usr/lib/finish-install.d/08hw-detect 
  
 This fixes the preseed installation. 
  
 However, this results in virtualization tools and processor microcode 
 packages not installing. 
  
 
Package: installation-reports
Tags: 
 d-i

Boot method: DVD
Image 
 version:€€debian-13.0.0-amd64-DVD-1.iso (cust 
 mized)
Date: 2025-08-10
 
 

Machine: Hyper-V / VirtualBox VM
< 
 r>
Not sure whether this is classified as a Debian Installer or 
 apt 
 problem:

I've been creating a customized 
 installation ISO image with a preseed 
 file for several versions.

My configuration was 
 working fine until Trixie, i.e. it works in <=Bookworm.
 
 div>
I copy a custom sources.list during installation with a 
 late_command:

& 
 gt; d-i preseed/late_command string \\
>€€ €€ €€cp / 
 drom/custom/conf/sources.list /target/etc/apt/sources.list
 
 div>
The sources.list obviously doesn't contain the cdrom 
 entries.

This breaks on 
 Trixie, on step "Finish the installation", it will start prompting 
 for an install media in a loop:

> Please insert 
 the media labeled '<disk label>' and press enter.< 
 r>
> *Media change*

According to console output, this is caused by 
 /usr/lib/finish-install.d/08hw-detect:

> 
 finish-install: info: Running€€/usr/lib/finish-install.d/08hw-de 
 ect
> ...
> in-target: 
 E: Unable to locate package hyperv-daemons
> load-install-cd: 
 E: 
 failed to mount the cdrom.

The virtualization 
 packages (e.g. hyperv-daemons, virtualbox-guest-utils) are not even 
 available 
 on (at least) the DVD1 
 media?

Also, it should be able to find & mount 
 my 
 DVD by label too, because I configure it into $MEDIA/.disk/info (the error 
 message displays the correct custom label for the media)

So, both errors 
 appear to be irrelevant.

Regardless, as a 
 workaround, 
 I added a preseed early_command:

> d-i 
 preseed/early_command string \\
>€€ €€ €€rm /usr/lib 
 finish-install.d/08hw-detect

< 
 /div>
This fixes the preseed installation.

However, this results in virtualization tools and processor microcode 
 packages not installing.

 
  
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