install f22 into btrfs subvolume won't boot

[Neal Becker]

Neal Becker wrote:

> I tried it.  It was not easy to figure out how to use anaconda gui to
> setup
> install into a subvolume - but I got it done.  I now have 3 subvolumes:
> 
> sudo btrfs subvolume list /
> [sudo] password for nbecker:
> ID 256 gen 1818627 top level 5 path home
> ID 259 gen 1818478 top level 5 path root
> ID 487 gen 1818625 top level 5 path root00
> 
> But if I try to boot with 1st grub entry, I get:
> dracut-initqueue warning could not boot
> starting dracut emergency shell
> 
> If I try to boot off the grub entry labeled 'rescue', it boots OK.
> 
> dracut says something about fixing initramfs.
> 

the rescue, which DOES work, says:

	linux16 /vmlinuz-0-rescue-39e9e51995d040a88bf6f0ae625ead80 
root=UUID=7246327b-1905-4fe2-9b6b-b9376017264f ro rootflags=subvol=root00 
rhgb quiet


the default, which does NOT work, says:
	linux16 /vmlinuz-4.0.4-301.fc22.x86_64 root=/dev/sdb8 ro 
rootflags=subvol=root00 rhgb quiet LANG=en_US.UTF-8


I did see an error about not finding /dev/sdb8 - I think that's the problem.

/etc/fstab says:
UUID=7246327b-1905-4fe2-9b6b-b9376017264f /                       btrfs   
subvolid=5,subvol=root00 0 0
UUID=2c04be93-34c1-4016-ba41-60fd9fd90616 /boot                   ext4    
defaults        1 2
UUID=7246327b-1905-4fe2-9b6b-b9376017264f /home                   btrfs   
subvol=home     0 0



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