Created attachment 998654 [details]
rdsosreport.txt output from failed boot
Description of problem:
initramfs images with dracut-041-10.git20150219.fc23.x86_64 d not find the root device.
Reverting dracut to dracut-041-1.fc22.i686.rpm and rebuilding the initramfs images got things working again,
Your kernel command line:
"ro root=/dev/mapper/luks-9a976b86-8aaa-40d9-8039-89d710eac5c9 SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us radeon.agpmode=-1 slub_debug=-"
What is the output of:
# dracut --print-cmdline
# dracut --print-cmdline
rd.luks.uuid=luks-9a976b86-8aaa-40d9-8039-89d710eac5c9 rd.luks.uuid=luks-987f98d1-0144-4bb4-a433-f7233784ca40 rd.md.uuid=d13c307b:fea49fff:68440555:5608819f rd.md.uuid=9e06cb82:14b726e2:af554f00:b9b73901 rd.md.uuid=ae6ad9ce:44aaf58a:1b7241dd:08af09ec resume=/dev/mapper/luks-987f98d1-0144-4bb4-a433-f7233784ca40 root=/dev/mapper/luks-9a976b86-8aaa-40d9-8039-89d710eac5c9 rootflags=rw,relatime,seclabel,nodelalloc rootfstype=ext4
(In reply to Bruno Wolff III from comment #3)
> # dracut --print-cmdline
> rootflags=rw,relatime,seclabel,nodelalloc rootfstype=ext4
You really should add the rd.luks.uuid=... and rd.md.uuid=... lines to the kernel command line. If you install a systemd these days, anaconda does that for you.
And, I would guess this system works with the newer dracut then.
I can try that. This should probably be documented someplace as a change for f22 though, as it could surprise other people with legacy setups.
I do find it odd that when doing a host only initramfs image, that dracut doesn't include info about the devices actually needed to boot the system, since it should be able to figure the list out.
in a dracut conf file will do what you want. I just don't want to make it the default.
into /etc/dracut.conf.d/999-local.conf , but that didn't work. It looked similar to cases where an initramfs file wasn't built, but in this case there was one. Things had been getting farther before I made that change. I'll look at things again when I get time and report back. I know how to work around the issue using older dracut, so I can keep testing newer kernels if I want.
The config file change was actually working, but grubby broke in the mean time and wasn't putting in the initrd line in grub.conf.
I'm going to close this, though I wish the need for setting hostonly_cmdline for people with very old complicated setups were easier to find. But there probably aren't enough of us to make it worth putting a lot of effort into it.