Ubuntu noob here,
Was messing around with permissions and external disk mounting options and I think I made a mistake with the permissions. Now I can't install updates and the gnome-desktop won't start. I've tried rebooting to no avail.
I couldn't figure out how to make this display properly here so apologies, let me know if there's a better way.
jellyadmin@jellyfin-drake:~$ systemctl start gdm.service
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to start 'gdm.service'.
Authenticating as: jellyadmin
Password:
==== AUTHENTICATION COMPLETE ===
Job for gdm.service failed because the control process exited with error code.
See "systemctl status gdm.service" and "journalctl -xeu gdm.service" for details.
jellyadmin@jellyfin-drake:~$ systemctl status gdm.service
× gdm.service - GNOME Display Manager
Loaded: loaded (/lib/systemd/system/gdm.service; static)
Active: failed (Result: exit-code) since Tue 2024-06-11 14:32:31 EDT; 18s ago
Process: 4615 ExecStartPre=/usr/share/gdm/generate-config (code=exited, status=1/FAILURE)
CPU: 7ms
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Scheduled restart job, restart counter is at 5.
Jun 11 14:32:31 jellyfin-drake systemd[1]: Stopped GNOME Display Manager.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Start request repeated too quickly.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Failed with result 'exit-code'.
Jun 11 14:32:31 jellyfin-drake systemd[1]: Failed to start GNOME Display Manager.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Triggering OnFailure= dependencies.
jellyadmin@jellyfin-drake:~$
jellyadmin@jellyfin-drake:~$
jellyadmin@jellyfin-drake:~$ systemctl start displaymanager.target
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to start 'displaymanager.target'.
Authenticating as: jellyadmin
Password:
==== AUTHENTICATION COMPLETE ===
Failed to start displaymanager.target: Unit displaymanager.target not found.
jellyadmin@jellyfin-drake:~$
jellyadmin@jellyfin-drake:~$
jellyadmin@jellyfin-drake:~$ sudo dpkg-reconfigure gdm3
debconf: DbDriver "templatedb": could not write /var/cache/debconf/templates.dat-new: Read-only file system
jellyadmin@jellyfin-drake:~$
jellyadmin@jellyfin-drake:~$
jellyadmin@jellyfin-drake:~$ cd /
jellyadmin@jellyfin-drake:/$ ls
bin boot cdrom dev etc home lib lib32 lib64 libx32 lost+found media mnt opt proc root run sbin snap srv swap.img sys tmp usr var
jellyadmin@jellyfin-drake:/$ ls -l
total 4194384
lrwxrwxrwx 1 root root 7 Aug 9 2023 bin -> usr/bin
drwxr-xr-x 4 root root 4096 Jun 7 06:51 boot
dr-xr-xr-x 2 root root 4096 Aug 10 2023 cdrom
drwxr-xr-x 20 root root 4700 Jun 11 14:00 dev
drwxr-xr-x 156 root root 12288 Jun 11 06:33 etc
drwxr-xr-x 3 root root 4096 Feb 4 20:28 home
lrwxrwxrwx 1 root root 7 Aug 9 2023 lib -> usr/lib
lrwxrwxrwx 1 root root 9 Aug 9 2023 lib32 -> usr/lib32
lrwxrwxrwx 1 root root 9 Aug 9 2023 lib64 -> usr/lib64
lrwxrwxrwx 1 root root 10 Aug 9 2023 libx32 -> usr/libx32
drwx------ 2 root root 16384 Feb 4 20:24 lost+found
drwxrwxr-x 5 jellyadmin jellyadmin 4096 Feb 20 09:50 media
drwxr-xr-x 11 jellyadmin root 4096 Jun 10 13:47 mnt
drwxr-xr-x 4 root root 4096 Feb 10 15:12 opt
dr-xr-xr-x 210 root root 0 Jun 11 14:00 proc
drwx------ 8 root root 4096 Feb 10 15:08 root
drwxr-xr-x 42 root root 1200 Jun 11 14:23 run
lrwxrwxrwx 1 root root 8 Aug 9 2023 sbin -> usr/sbin
drwxr-xr-x 17 root root 4096 Feb 5 19:05 snap
drwxr-xr-x 2 root root 4096 Aug 9 2023 srv
-rw------- 1 root root 4294967296 Feb 4 20:25 swap.img
dr-xr-xr-x 13 root root 0 Jun 11 14:00 sys
drwxrwxrwt 8 root root 4096 Jun 11 12:12 tmp
drwxr-xr-x 14 root root 4096 May 30 10:48 usr
drwxr-xr-x 14 root root 4096 Feb 4 20:46 var
jellyadmin@jellyfin-drake:/$
As suggested:
jellyadmin@jellyfin-drake:~$ systemctl status gdm.service
× gdm.service - GNOME Display Manager
Loaded: loaded (/lib/systemd/system/gdm.service; static)
Active: failed (Result: exit-code) since Tue 2024-06-11 14:32:31 EDT; 2h 36min ago
Process: 4615 ExecStartPre=/usr/share/gdm/generate-config (code=exited, status=1/FAILURE)
CPU: 7ms
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Scheduled restart job, restart counter is at 5.
Jun 11 14:32:31 jellyfin-drake systemd[1]: Stopped GNOME Display Manager.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Start request repeated too quickly.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Failed with result 'exit-code'.
Jun 11 14:32:31 jellyfin-drake systemd[1]: Failed to start GNOME Display Manager.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Triggering OnFailure= dependencies.
jellyadmin@jellyfin-drake:~$
And:
jellyadmin@jellyfin-drake:~$ journalctl -xeu gdm.service
░░ The job identifier is 6945.
Jun 11 14:32:30 jellyfin-drake generate-config[4618]: error: Failed to create file “/var/lib/gdm3/greeter-dconf-defaults.013GP2”: Read-only file system
Jun 11 14:32:30 jellyfin-drake systemd[1]: gdm.service: Control process exited, code=exited, status=1/FAILURE
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ An ExecStartPre= process belonging to unit gdm.service has exited.
░░
░░ The process' exit code is 'exited' and its exit status is 1.
Jun 11 14:32:30 jellyfin-drake systemd[1]: gdm.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit gdm.service has entered the 'failed' state with result 'exit-code'.
Jun 11 14:32:30 jellyfin-drake systemd[1]: Failed to start GNOME Display Manager.
░░ Subject: A start job for unit gdm.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit gdm.service has finished with a failure.
░░
░░ The job identifier is 6945 and the job result is failed.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Scheduled restart job, restart counter is at 5.
░░ Subject: Automatic restarting of a unit has been scheduled
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ Automatic restarting of the unit gdm.service has been scheduled, as the result for
░░ the configured Restart= setting for the unit.
Jun 11 14:32:31 jellyfin-drake systemd[1]: Stopped GNOME Display Manager.
░░ Subject: A stop job for unit gdm.service has finished
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A stop job for unit gdm.service has finished.
░░
░░ The job identifier is 7077 and the job result is done.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Start request repeated too quickly.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Failed with result 'exit-code'.
░░ Subject: Unit failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ The unit gdm.service has entered the 'failed' state with result 'exit-code'.
Jun 11 14:32:31 jellyfin-drake systemd[1]: Failed to start GNOME Display Manager.
░░ Subject: A start job for unit gdm.service has failed
░░ Defined-By: systemd
░░ Support: http://www.ubuntu.com/support
░░
░░ A start job for unit gdm.service has finished with a failure.
░░
░░ The job identifier is 7077 and the job result is failed.
Jun 11 14:32:31 jellyfin-drake systemd[1]: gdm.service: Triggering OnFailure= dependencies.
lines 1286-1340/1340 (END)
Then:
jellyadmin@jellyfin-drake:~$ findmnt -T /var/lib/gdm3
TARGET SOURCE FSTYPE OPTIONS
/ /dev/sda2 ext4 ro,relatime
Here's my fstab file:
jellyadmin@jellyfin-drake:/etc$ cat fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda2 during curtin installation
# /boot/efi was on /dev/sda1 during curtin installation
/swap.img none swap sw 0 0
/dev/disk/by-uuid/8CD8-C307 /mnt/8CD8-C307 auto nosuid,nodev,nofail,x-gvfs-show 0 0
/dev/disk/by-label/WD_BLACK /media/jellyadmin/WD_BLACK auto nosuid,nodev,nofail,x-gvfs-show 0 0
/dev/disk/by-label/SG_GREEN /media/jellyadmin/SG_GREEN auto nosuid,nodev,nofail,x-gvfs-show 0 0
/dev/disk/by-label/EFI /mnt/EFI auto nosuid,nodev,nofail,x-gvfs-show 0 0
/dev/disk/by-label/SG_Green_2 /media//jellyadmin/SG_Green_2 auto nosuid,nodev,nofail,x-gvfs-show 0 0
/dev/disk/by-label/EFI /mnt/EFI auto nosuid,nodev,nofail,x-gvfs-show 0 0
check current mounted drives:
jellyadmin@jellyfin-drake:/var/snap/firefox/common/host-hunspell$ df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 1.6G 9.5M 1.6G 1% /run
/dev/sda2 915G 44G 826G 5% /
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
/dev/sda1 1.1G 6.1M 1.1G 1% /mnt/8CD8-C307
tmpfs 1.6G 64K 1.6G 1% /run/user/1000
And here is what I get when trying to remount the internal drive:
jellyadmin@jellyfin-drake:/dev$ sudo mount -o remount,uid=1000,gid=1000,rw /dev/sda2
mount: /var/snap/firefox/common/host-hunspell: mount point not mounted or bad option.
So I try unmounting and remounting to no avail:
jellyadmin@jellyfin-drake:/$ umount /dev/sda2
umount: /var/snap/firefox/common/host-hunspell: must be superuser to unmount.
jellyadmin@jellyfin-drake:/$ sudo umount /dev/sda2
jellyadmin@jellyfin-drake:/$
jellyadmin@jellyfin-drake:/$
jellyadmin@jellyfin-drake:/$ df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 1.6G 9.5M 1.6G 1% /run
/dev/sda2 915G 44G 826G 5% /
tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
/dev/sda1 1.1G 6.1M 1.1G 1% /mnt/8CD8-C307
tmpfs 1.6G 64K 1.6G 1% /run/user/1000
jellyadmin@jellyfin-drake:/$ sudo mount -o remount,uid=1000,gid=1000,rw /dev/sda2
mount: /: mount point not mounted or bad option.
After a fresh install of Ubuntu Server 24.04 LTS, and using the "Disks" app to set only my 3 external drives to auto mount:
jellyadmin@jellyfin-drake:/etc$ df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 1.6G 2.0M 1.6G 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 98G 14G 80G 15% /
tmpfs 7.8G 4.0K 7.8G 1% /dev/shm
tmpfs 5.0M 12K 5.0M 1% /run/lock
/dev/sda2 2.0G 103M 1.7G 6% /boot
/dev/sda1 1.1G 6.2M 1.1G 1% /boot/efi
tmpfs 1.6G 100K 1.6G 1% /run/user/124
tmpfs 1.6G 136K 1.6G 1% /run/user/1000
/dev/sdb1 1.9T 1.8T 64G 97% /media/jellyadmin/WD_BLACK
/dev/sdc2 3.7T 3.5T 185G 96% /media/jellyadmin/SG_GREEN
/dev/sdd2 3.7T 812G 2.9T 22% /media/jellyadmin/SG_Green_2
jellyadmin@jellyfin-drake:/etc$
And:
jellyadmin@jellyfin-drake:/etc$ cat fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/ubuntu-vg/ubuntu-lv during curtin installation
/dev/disk/by-id/dm-uuid-LVM-oOin7c1pI9TWy5aSmyLAJJrNcbiq5Oc1yziartSobMNQQW253V5MUwFaP0zIuXu7 / ext4 defaults 0 1
# /boot was on /dev/sda2 during curtin installation
/dev/disk/by-uuid/2685d670-4f44-4739-84f8-6550f0a08e7b /boot ext4 defaults 0 1
# /boot/efi was on /dev/sda1 during curtin installation
/dev/disk/by-uuid/872E-23CE /boot/efi vfat defaults 0 1
/swap.img none swap sw 0 0
LABEL=SG_GREEN /media/jellyadmin/SG_GREEN auto nosuid,nodev,nofail,x-gvfs-show 0 0
LABEL=SG_Green_2 /media/jellyadmin/SG_Green_2 auto nosuid,nodev,nofail,x-gvfs-show 0 0
LABEL=WD_BLACK /media/jellyadmin/WD_BLACK auto nosuid,nodev,nofail,x-gvfs-show 0 0
jellyadmin@jellyfin-drake:/etc$
My User folder in /media
jellyadmin@jellyfin-drake:/media$ ls -l
total 8
drwxr-x---+ 5 root jellyfinmedia 4096 Jun 19 00:52 jellyadmin
drwxr-x---+ 2 root root 4096 Jun 19 00:43 root
And the containing folders that I can't chown:
jellyadmin@jellyfin-drake:/media/jellyadmin$ ls -l
total 1536
drwxr-xr-x 7 root root 262144 Jun 20 22:25 SG_GREEN
drwxr-xr-x 5 root root 262144 Jun 20 22:25 SG_Green_2
drwxr-xr-x 7 root root 1048576 Jun 20 22:17 WD_BLACK
jellyadmin@jellyfin-drake:/media/jellyadmin$
