On Wed, 4 Jul 2018 09:15:02 +0200 Harald Hoyer wrote: > > > apparently > /dev/disk/by-id/md-uuid-e40a0234-7e52-5f10-f267-658d8ec463fa > > changed its name to > /dev/disk/by-id/md-uuid-e40a0234:7e525f10:f267658d:8ec463fa > > Very strange... > > /lib/udev/rules.d/63-md-raid-arrays.rules:ENV{DEVTYPE}=="disk", ENV{MD_UUID}=="?*", SYMLINK+="disk/by-id/md-uuid-$env{MD_UUID}" > > /sbin/mdadm -D --export /dev/md127 > ... > MD_UUID=e40a0234:7e525f10:f267658d:8ec463fa > > I wonder if that changed with the new mdadm version. > > Jake, maybe changing the kernel command line option from > rd.md.uuid=e40a0234-7e52-5f10-f267-658d8ec463fa > to > rd.md.uuid=e40a0234:7e525f10:f267658d:8ec463fa > helps in your case. That certainly fixed things, thanks! > Please file a bug against mdadm, stating that apparently the UUID changed. I guess I don't see how mdadm plays a role here -- it hasn't changed ... this was occurring on F26 and started months ago ... downgrading dracut (and only dracut) to 044-183.fc26.x86_64 and then running (for example for F28): dracut -v --kver 4.17.3-200.fc28.x86_64 would create an initramfs that would boot ... either of the other two dracut versions since create an initramfs that won't boot (but apparently I can change the uuid format in grub2-efi.cfg as you figured out) ... seems weird that this happened and weirder that I am the only one (?) that has run into it ... thoughts? jake -- Jake Edge - LWN - jake@xxxxxxx - https://lwn.net -- To unsubscribe from this list: send the line "unsubscribe initramfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html