When building VyOS then mksquashfs is being used to create the filesystem.squashfs file.
However since the syntax is compiled dynamically (by vyos-live-build/scripts/build/binary_rootfs) its hard to tell afterwards what the full syntax of mksquashfs really were to create that squashfs-file.
Suggestion to add some logging at around https://github.com/vyos/vyos-live-build/blob/current/scripts/build/binary_rootfs#L324 what the variable ${MKSQUASHFS_OPTIONS} ultimately ended up to be.
PR1 didnt seem to have any affect on this night build:
Which gives... what other source file mus be altered for this logging to work properly?
https://github.com/search?q=org%3Avyos%20mksquashfs&type=code
I have created a PR upstream which hopefully resolves why the logging didnt work as expected in VyOS (since the binary_rootfs in vyos-live-build isnt used by the nightly build who uses vyos-build and the deb-package of live-build from Debian 12.x (bookworm)):
https://salsa.debian.org/live-team/live-build/-/merge_requests/322
@Apachez note that all lb commands take --debug and --verbose: using 'lb build --debug' in scripts/build-vyos-image will output the full mksquashfs command.
@jestabro I havent verified it yet but then perhaps the buildscript for VyOS should be altered to include --verbose?
Note that is is the "--debug" flag that one wants in order to see the full mksquashfs command that is executed.
Shouldnt that be default for lb then in the vyos buildscripts and how does --debug affect things other than logging during build?