> From: Rob Landley [mailto:rob@xxxxxxxxxxx] > Sent: Tuesday, July 19, 2022 4:15 PM > On 7/19/22 07:26, Roberto Sassu wrote: > >> P.P.S. If you want to run a command other than /init out of initramfs or initrd, > >> use the rdinit=/run/this option. Note the root= overmount mechanism is > >> completely different code and uses the init=/run/this argument instead, > which > >> means nothing to initramfs. Again, specifying root= says we are NOT staying > in > >> initramfs. > > > > Sorry, it was some time ago. I have to go back and see why we needed > > a separate option. > > Did I mention that init/do_mounts.c already has: > > __setup("rootfstype=", fs_names_setup); It is consumed by dracut too, for the real root filesystem. [...] > Lots of systems running from initramfs already DON'T have a root=, so you're > saying dracut being broken when there is no root= is something to work around > rather than fix in dracut, even though it's been easy to create a system without > a root= for a decade and a half already... If there is a possibility that root= or rootfstype= are used by someone else, I would not count on those to make a selection of the filesystem for rootfs. On the other hand, what can go wrong in having a dedicated, not used by anyone option to do this job? Thanks Roberto
