On Sat, Feb 13, 2016 at 7:38 AM, Hendrik Friedel <hend...@friedels.name> wrote: > Hello Chris, > > thanks, I appreciate your help > > ----------------- > 1. Install CentOS 7.0 to vda > 2. reboot > 3. btrfs dev add /dev/vdb / > 4. reboot > ## works > 5. btrfs balance start / > 6. reboot > ## works > > Same thing when starting with CentOS 7.2 media. > > This is a NAS product using CentOS 7.2? My only guess is they've > changed something broke this. > ----------------- > I confirm that it runs also for me on CentOS 7 Minimal. Thus we can rule > out CentOS and myself as the Source of the problem. > Rockstor is Based on Centos 7.2. > > So, I compared the grub.cfg of Centos 7.2 -which works for me to Rockstor. > > I see very few differences apart from UUIDs: > 1) menuentry 'Rockstor' --class rhel fedora > menuentry 'Centos ' --class centos > 2) insmod ext2 > insmod zfs
Rockstor uses an ext234 file system for /boot, where CentOS 7x by default uses XFS. This is a non-factor. I see no meaningful difference in the grub.cfg. I expect the problem is in the initramfs or udev rules. You'll probably need to boot with some combination of 'systemd.log_level=debug rd.debug rd.udev.debug' using all three options at the same time will make boot incredibly slow, and 'journalctl -b' will be extremely verbose. So you just try systemd debug first and see if that helps sort out whether this is a dracut or udev problem. -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
