XPost: linux.debian.bugs.dist 
 From: jspricke@debian.org 
  
 Hi Cyril, 
  
 thanks a lot for the speedy reply! 
  
 * Cyril Brulebois  [2025-08-29 10:57]: 
 >Jochen Sprickerhof  (2025-08-29): 
 >> I have opened a MR to make fakeroot a requirement: 
 >> 
 >> https://salsa.debian.org/installer-team/debian-installer/- 
 /merge_requests/68 
 > 
 >Those happened earlier: 
 > - d495f01afe467d054f6fd93dffc8cc22d00d106d 
  
 Ha, missed that one while rebasing my commit :). 
  
 > - 5f8888f0dfa11fdd577aee209a935161aa3663ff 
  
 Oh, thanks for cleaning up after my change :). 
  
 >I'm happy to have a comment around the fakeroot package in Build-Depends but 
 >let's avoid duplicates? :-) 
  
 Agreed and updated the MR. 
  
 * Cyril Brulebois  [2025-08-29 11:31]: 
 >Roland Clobus  (2025-08-29): 
 >> I'm wondering whether the fakeroot package is actually required. 
 >> As I wrote in the initial text, I did not need to have fakeroot available, 
 >> and could prevent calls to fakeroot by setting the environment variable 
 >> ROOTCMD to a space (as an empty value would still set it to 'fakeroot'). 
 >> 
 >> As I understand it, invoking 'chroot' requires being root (it is in 
 >> /usr/sbin), so within the chroot-environment one is already root and 
 >> therefore does not need fakeroot on top. 
 >> But there might be some scenarios, that I'm unaware of, that invoke the 
 >> scripts of the installer differently and therefore the package fakeroot is 
 >> indeed a requirement. 
 > 
 >I'll let Jochen comment on that, who's apparently more familiar with 
 >those things than I am. Speaking of which, the initial R€€ addition 
 >(which is modified by !68) happened by applying a suggestion from Niels. 
  
 build/Makefile used mknod which needs (real) root or fakeroot (that 
 tracks the faked device files). So when Niels tested setting R€€ 
 src:debian-installer did not depend on fakeroot and the package FTBFSed. 
 The simple solution was to set R€€ to binary-targets so dpkg-buildpackage 
 runs with fakeroot. But actually only build/Makefile needs it so we can 
 drop the binary-targets again. 
  
 I recommend using my patch from the RT ticket to not run the daily 
 builds with real root, btw. 
  
 >> I'm also wondering whether !68 is still required, given that fakeroot 
 >> has been added as a dependency about 2 weeks ago. Is the MR based on 
 >> work that started earlier? 
 > 
 >If you look at timestamps, you'll see there are just a few hours between 
 >my commits and Jochen's, so presumably some work was being staged. 
  
 Yes it is required as currently R€€ being binary-targets triggers a 
 special setup in debrebuild to work around the missing fakeroot in the 
 buildinfo files. That setup makes build/Makefile not execute fakeroot 
 and the mknod and build fails. It is also no longer needed to set R€€ as 
 the build works without \\o/. 
  
 Cheers Jochen 
  
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