Hi. I am using Debian Unstable (64-bit), Cinnamon desktop environment. ----------------------------------------------------------------------- lsblk output:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 111.8G 0 disk ├─sda1 8:1 0 28G 0 part / ├─sda2 8:2 0 1K 0 part ├─sda5 8:5 0 7.9G 0 part [SWAP] └─sda6 8:6 0 76G 0 part /home sr0 11:0 1 1024M 0 rom --------------------------------------------------------------------- blkid output: /dev/sda1: LABEL="/" UUID="1af49d67-02c1-4601-b020-ca70e78e6da8" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="cff3c8f8-01" /dev/sda5: UUID="93082123-a386-41ce-8067-fafbf5892691" TYPE="swap" PARTUUID="cff3c8f8-05" /dev/sda6: LABEL="/home" UUID="561e0ea6-46ef-41bd-9a51-f840352d918c" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="cff3c8f8-06" ---------------------------------------------------------------------- /etc/fstab contents: # /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/sda1 during installation UUID=1af49d67-02c1-4601-b020-ca70e78e6da8 / ext4 errors=remount-ro 0 1 # # /home was on /dev/sda6 during installation UUID=561e0ea6-46ef-41bd-9a51-f840352d918c /home ext4 defaults 0 2 # # swap was on /dev/sda5 during installation UUID=93082123-a386-41ce-8067-fafbf5892691 none swap sw 0 0 # /dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0 ------------------------------------------------------------------------ I have gnome-disk-utility (a.k.a. the "Disks" program) installed. In "Disks", for each partition (/, swap, or home), on the primary (only) ssd, if the partition is highlighted and the "gears" icon is clicked, a menu pops up with one of the choices being "Edit Mount Options". When "Edit Mount Options is clicked, a window titled "Mount Options" appears. Near the top of the mount options window is a slide switch labeled "User Session Defaults". If you rest the mouse pointer on the slide switch, a popup text box says "Switch off User Session Defaults to manage mount point and mount options for the device. The options correspond to an entry in the /etc/fstab file." Until recently, for all partitions on the main ssd, the slide switch was "on" by default, with the slide background colored blue, and all of the text in the fields for the options in the window were "greyed out". But now, for all partitions on the main ssd, the slide switch is "off" by default, the slide background is colored grey, and the text in the options fields is black, not grey, and is editable. Now if I slide the switches to "on", and click "OK" to save the changes (requires authentication by user sudo password), the computer will not reboot after shutdown. Using a rescue disk to inspect /etc/fstab on the main ssd reveals that changing the User Session Defaults switches for each partition has caused the corresponding entries to be deleted from /etc/fstab. Replacing /etc/fstab with a backed up good copy allows the computer to boot as normal. BUT, restoring the backed up /etc/fstab causes the "Disks" slider switches to change back to "off" by themselves! No matter what I try, I can not get /etc/fstab and the User Session Defaults switches to not change each other. Very strange . . . Note 1: all of this behavior affects only the partitions on the main ssd. It does not affect the "Disks" Edit Mount Options windows for the dvd drive or any external usb drives that are plugged in. For any drive other than the main ssd, the User Session Defaults switches default to "on", as expected. Note 2: in the Edit Mount Options window for each partition on the main ssd, the 'Identify As" field lists a UUID entry (ie, UUID="93082123-a386-41ce-8067-fafbf5892691 for the swap partition). But for any partition or drive other than on the main ssd, the 'Identify As" field lists either a device name entry (ie, /dev/sr0 for the dvd drive), or a /dev/disk/by-id entry (ie, usb-HP_v125w_8EIYHFB131ZYW5I4-0:0-part1, when an external usb device is plugged in.) Therefore I wonder if this has something to do with entries in /dev/disks/*, but that is just speculation. And since I know nothing about /dev/disks/* and how it works, I am somewhat reluctant to do surgery there without knowing what I am doing. ----------------------------------------------------------------- Here are the /dev/disk/* entries, with no external devices attached: /dev/disk/by-id: total 0 drwxr-xr-x 2 root root 280 May 7 20:22 ./ drwxr-xr-x 7 root root 140 May 7 15:06 ../ lrwxrwxrwx 1 root root 9 May 7 15:06 ata-HL-DT-ST_DVD+_-RW_GU90N_KZSZ73G1632 -> ../../sr0 lrwxrwxrwx 1 root root 9 May 7 15:06 ata-KINGSTON_SV300S37A120G_50026B77490A7CE8 -> ../../sda lrwxrwxrwx 1 root root 10 May 7 15:06 ata-KINGSTON_SV300S37A120G_50026B77490A7CE8-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 May 7 15:06 ata-KINGSTON_SV300S37A120G_50026B77490A7CE8-part2 -> ../../sda2 lrwxrwxrwx 1 root root 10 May 7 15:06 ata-KINGSTON_SV300S37A120G_50026B77490A7CE8-part5 -> ../../sda5 lrwxrwxrwx 1 root root 10 May 7 15:06 ata-KINGSTON_SV300S37A120G_50026B77490A7CE8-part6 -> ../../sda6 lrwxrwxrwx 1 root root 9 May 7 15:06 wwn-0x5001480000000000 -> ../../sr0 lrwxrwxrwx 1 root root 9 May 7 15:06 wwn-0x50026b77490a7ce8 -> ../../sda lrwxrwxrwx 1 root root 10 May 7 15:06 wwn-0x50026b77490a7ce8-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 May 7 15:06 wwn-0x50026b77490a7ce8-part2 -> ../../sda2 lrwxrwxrwx 1 root root 10 May 7 15:06 wwn-0x50026b77490a7ce8-part5 -> ../../sda5 lrwxrwxrwx 1 root root 10 May 7 15:06 wwn-0x50026b77490a7ce8-part6 -> ../../sda6 /dev/disk/by-label: total 0 drwxr-xr-x 2 root root 80 May 7 20:22 ./ drwxr-xr-x 7 root root 140 May 7 15:06 ../ lrwxrwxrwx 1 root root 10 May 7 15:06 '\x2f' -> ../../sda1 lrwxrwxrwx 1 root root 10 May 7 15:06 '\x2fhome' -> ../../sda6 /dev/disk/by-partuuid: total 0 drwxr-xr-x 2 root root 120 May 7 20:22 ./ drwxr-xr-x 7 root root 140 May 7 15:06 ../ lrwxrwxrwx 1 root root 10 May 7 15:06 cff3c8f8-01 -> ../../sda1 lrwxrwxrwx 1 root root 10 May 7 15:06 cff3c8f8-02 -> ../../sda2 lrwxrwxrwx 1 root root 10 May 7 15:06 cff3c8f8-05 -> ../../sda5 lrwxrwxrwx 1 root root 10 May 7 15:06 cff3c8f8-06 -> ../../sda6 /dev/disk/by-path: total 0 drwxr-xr-x 2 root root 160 May 7 20:22 ./ drwxr-xr-x 7 root root 140 May 7 15:06 ../ lrwxrwxrwx 1 root root 9 May 7 15:06 pci-0000:00:1f.2-ata-1 -> ../../sda lrwxrwxrwx 1 root root 10 May 7 15:06 pci-0000:00:1f.2-ata-1-part1 -> ../../sda1 lrwxrwxrwx 1 root root 10 May 7 15:06 pci-0000:00:1f.2-ata-1-part2 -> ../../sda2 lrwxrwxrwx 1 root root 10 May 7 15:06 pci-0000:00:1f.2-ata-1-part5 -> ../../sda5 lrwxrwxrwx 1 root root 10 May 7 15:06 pci-0000:00:1f.2-ata-1-part6 -> ../../sda6 lrwxrwxrwx 1 root root 9 May 7 15:06 pci-0000:00:1f.2-ata-2 -> ../../sr0 /dev/disk/by-uuid: total 0 drwxr-xr-x 2 root root 100 May 7 20:22 ./ drwxr-xr-x 7 root root 140 May 7 15:06 ../ lrwxrwxrwx 1 root root 10 May 7 15:06 1af49d67-02c1-4601-b020-ca70e78e6da8 -> ../../sda1 lrwxrwxrwx 1 root root 10 May 7 15:06 561e0ea6-46ef-41bd-9a51-f840352d918c -> ../../sda6 lrwxrwxrwx 1 root root 10 May 7 15:06 93082123-a386-41ce-8067-fafbf5892691 -> ../../sda5 ----------------------------------------------------------------- So, I would just like for the old behavior to return: 1) The computer boots, without issue. 3) User Session Defaults will show in the "Disks" program as turned "on" (and stay that way)! 3) A good /etc/fstab that doesn't change by itself when User Session Defaults is turned on or off! Thanks in advance for any help on this!
