https://bugzilla.suse.com/show_bug.cgi?id=1217973 Bug ID: 1217973 Summary: warewulf: non-deterministic cpio files Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Other Assignee: eich@suse.com Reporter: bwiedemann@suse.com QA Contact: qa-bugs@suse.de CC: cgoll@suse.com Blocks: 1134568 Target Milestone: --- Found By: --- Blocker: --- While working on reproducible builds for openSUSE, I found that our warewulf package varies in every build. 8 cpio files in /var/lib/warewulf/initramfs/x86_64/ vary every time: base capabilities/provision-adhoc capabilities/provision-files capabilities/provision-selinux capabilities/provision-vnfs capabilities/setup-filesystems capabilities/setup-ipmi capabilities/transport-http Here is a partial PoC patch that helped to produce bit-reproducible results: --- a/provision/initramfs/capabilities/transport-http/Makefile.am +++ b/provision/initramfs/capabilities/transport-http/Makefile.am @@ -16,7 +16,7 @@ rootfs: done capability.cpio: rootfs - cd rootfs/; find . | cpio -o -H newc -F ../capability.cpio + cd rootfs/; find . | xargs touch -d @1690848000 ; find . | sort | cpio -o -H newc --reproducible -F ../capability.cpio install-data-local: capability.cpio install -d -m 755 $(DESTDIR)/$(WAREWULF_STATEDIR)/warewulf/initramfs/$(MACHINE)/capabilities I'm not sure if the mtimes of files in the cpio files matter. The source tar is from 2018, so not sure if upstream would be interested in this. -- You are receiving this mail because: You are on the CC list for the bug.