Hi Andrew. Note: I'm making an assumption that your root partition is an ext4 format. If it's not, then you will need to use the tool for your partition type (assuming it has one).
The reason you can't mount the btrfs partitions is that they need to mount to somewhere on the root partition. As the root partition mounts "Read only", the system won't let the mount occur. You need to run fsck on the root partition. "fsck /" (see "man fsck" for full details, or look it up on the net if necessary.) As it's already in read only mode, fsck (or the variant of fsck that matches your root partition type) will happily look for any broken i-nodes, and will reconnect any broken file fragments via their inode number to the "lost+found" directory of the root partition. For the "Hail Mary" option, you can run "fsck -a /" which will run wiithout asking any questions. Before trying the -a option, try the -N option as it is a dry-run oprion, making no changes, but just reporting on what it would do if given free reign. By default, fsck runs in interactive mode, so it will prompt you at each error it finds. If you are lucky, nothing critical was open at the time of the power outage. Once the fsck has run its course, "mount -o remount /" will bring the root partition up in rw mode. You can then run a "mount -a" to mount all of the partitions in /et/fstab. Rebooting the machine is your other alternative. Regards, Morrie. -----Original Message----- From: luv-main [mailto:[email protected]] On Behalf Of Andrew Greig via luv-main Sent: Wednesday, 23 October 2019 8:42 PM To: Andrew Greig via luv-main Subject: Power outage today, system fscked Hi All, Two events, Ubuntu update and power outage. I cannot access my btrfs RAID drives, system reports it is mounted as read only. Thunderbird is not working browsers are not working Sane scanner is working Darktable is reporting as running but not responsive. KPatience is not working So, in general, I have a system which boots but the programs are not starting properly. Is this a symptom of LockFiles not reporting correctly? If I cannot access my RAID drives I am in a world of pain. Any suggestions on how to solve this would be truly appreciated. Andrew Greig _______________________________________________ luv-main mailing list [email protected] https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main _______________________________________________ luv-main mailing list [email protected] https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
