Niltze [Hello]- 
  
 Indeed, I am *well* aware that Debian does not support the reiser4 file 
 system that some of us use on a daily basis, as well as on our remote 
 server(s). 
  
 Nevertheless, I had to point out that initramfs-tools commit 
 0df1765e902e56d9698beacc1cc056f327ed58c2 
  
 Merge: f740273 19b85a5 
 Author: Ben Hutchings  
 Date:   Tue Mar 25 23:58:06 2025 +0000 
  
      Merge branch 'block-modules' into 'debian/latest' 
  
      Filter block kernel modules by symbol regex from dracut 
  
      See merge request kernel-team/initramfs-tools!149 
  
  
 prevents reiser4 booting into a newly installed system (with reiser4 on 
 root '/') with the following (last fragment): 
 ... 
 Begin: Running /scripts/local-block ... done. 
 Begin: Running /scripts/local-block ... done. 
 Begin: Running /scripts/local-block ... done. 
 done. 
 Gave up waiting for root file system device.  Common problems: 
   - Boot args (cat /proc/cmdline) 
     - Check rootdelay= (did the system wait long enough?) 
   - Missing modules (cat /proc/modules; ls /dev) 
 ALERT! PARTUUID=STUV-WXYZ does not exist.  Dropping to a shell! 
  
 BusyBox v1.37.0 (Debian 1:1.37.0-6+b3) built-in shell (ash) 
 Enter 'help' for a list of built-in commands. 
  
 (initramfs) 
 < https://metztli.it/initramfs-tools > 
  
 Of course, *all* those pre-cooked suggestions to resolve the issue 
 simply are wrong and sent me on 'a wild goose chase', suspecting udev, 
 libudev1, and binutils, as suggested in links: 
 < https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=790560 > 
 < https://www.linux.org/threads/cannot-mount-root-on-grub.51331/ > 
  
 The issue happens with VirtualBox 7.1.10 and in actual hardware. 
 Notwithstanding, stripping away the relevant commit from initramfs-tools 
 v0.148.3 source, rebuilding the package, and subsequently manually 
 installing in a rescue environment, solves the reiser4 booting issue. 
  
 On the other hand, there are exceptions when upgrading a Debian Bookworm 
 with reiser4 root '/' file system into a Trixie system, somehow the 
 booting issue does not happen in a couple of instances I have upgraded. 
  
 -- 
 Best Professional Regards. 
  
 -- 
 Jose R R 
 http://metztli.it 
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 Official current Reiser4 resources: https://reiser4.wiki.kernel.org/ 
  
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