Package: kmod-udeb,busybox-udeb Severity: serious Justification: file conflict X-Debbugs-Cc: Cyril Brulebois <k...@debian.org>, debian-boot@lists.debian.org
Hi Cyril, On Sat, Jan 06, 2024 at 04:31:44AM +0100, Cyril Brulebois wrote: > d-i daily builds now FTBFS everywhere due to the merge-usr step, with > the following error: > > merge-usr "./tmp/cdrom/tree" > error: merge target 'usr//sbin/depmod' is a symlink > > It would be nice if you could investigate and suggest what fix(es) would > be best here. I suppose it could be some fallout from the kmod upload > which included some changes of yours, hence the ping. > > > https://tracker.debian.org/news/1491892/accepted-kmod-31-1-source-into-unstable/ Thank you for the report. In investigating it, I note that reproducing the failure was unexpectedly difficult. debian-installer fails to build from source in unstable for unrelated reasons. I request that you update the package more frequently and keep it in a buildable state to ease QA efforts of others. It turns out that /sbin/depmod points to /bin/busybox and /usr/sbin/depmod points to ../bin/kmod. As such, merge-usr does not have a good idea of what to do and rightly refuses to continue. These two files are to be considered a file conflict according to the Debian policy as they only differ in aliasing. I argue that this was a bug before merged-/usr and merged-/usr just makes it visible now. The underlying conflict has existed earlier and was resolved arbitrarily dependent on the order of unpacks. The real solution here is to agree on whether busybox-udeb or kmod-udeb is supposed to provide depmod and only ship it once. Since there is no other consumer of udebs, it does not make sense to install it in both. Cyril, please reassign the bug to the right package (i.e. the one that should not be providing depmod). I also recommend to establish QA for all udebs to automatically detect, report and address such conflicts as they evidently cause undefined behaviour otherwise. That can be as simple as collecting file lists of all udebs and comparing them. Helmut
