XPost: linux.debian.bugs.dist 
 From: zeha@debian.org 
  
 On Sun, Sep 07, 2025 at 02:25:24PM +0200, Philip Hands wrote: 
 > > But all commands that setupcon would run are also copied into the 
 > > built-setupcon (including some patching of referenced filenames). 
 > 
 > To put that another way, the patch is about looking for files that match 
 > "^tmpkbd\\." and removing everything after the '.' and using what's left 
 > as the filename in the initrd. (which AFAICS is bound to be "tmpkbd" 
 > isn't it? so no need for sed) 
  
 I haven't looked at the patch at all. 
  
 > The string 'tmpkbd' only appears twice in all the code that 
 > codesearch.debian.net is able to search, and both those places are in 
 > this script, as a parameter to mktemp, to populate $TMPFILE. 
 > 
 >   https://codesearch.debian.net/search?q=tmpkbd&literal=1 
 > 
 > That being the case, where is the thing that is going to make use of the 
 > file in question, with either name? 
  
 I can reproduce a usage for it using this sequence on an otherwise 
 'normal' install: 
  
   % sudo rm /etc/console-setup/cached_* 
   % setupcon --setup-dir /tmp/foo 
   % find /tmp/foo 
   /tmp/foo 
   /tmp/foo/morefiles 
   /tmp/foo/etc 
   /tmp/foo/etc/console-setup 
   /tmp/foo/etc/console-setup/tmpkbd.Vox0RB 
   /tmp/foo/etc/console-setup/cached_UTF-8_del.kmap 
   /tmp/foo/bin 
   /tmp/foo/bin/setupcon 
   % cat /tmp/foo/bin/setupcon 
   #!/bin/sh 
   # A micro-version of setupcon with static configuration. 
   kbd_mode '-u' 
   loadkeys '/etc/console-setup/tmpkbd.Vox0RB' > '/dev/null' 
   mkdir /run/console-setup 
   >/run/console-setup/keymap_loaded 
   exit 0 
  
 To go back to a 'normal' state, run `sudo setupcon --save` (this recreates 
 /etc/console-setup/cached*). 
  
 > If (as it seems) the file we're messing about with is not used, wouldn't 
 > it be simpler to not bother adding it to the initrd at all? 
  
 As you can see above, it is used by the built /bin/setupcon in the loadkeys 
 command. 
  
 > Even if this rename is required (given that it looks like the sed always 
 > results in 'tmpkbd') we can make it more obvious what's going on. e.g.: 
  
 I think setupcon should just always use a deterministic filename in 
 /etc/console-setup, and not bother with `tempfile` in this case. 
  
 Chris 
  
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