I installed 18.04.1 from scratch on my desktop computer and used settings and gnome-tweak-tool to set several of my preferences, like icon sizes, mouse sloppy focus, and many more. After I rebooted my machine, they all disappeared and the system does not allow me to change them again. For instance, I cannot change icon size or add an application to my favorites. It even lost my keyboard layout -- I am using a foreign language keyboard which worked perfectly before reboot.
Any help will be appreciated -- I am desperate!
Additional info as requested:
(1) I was logged in as myself. Apparently all my applications work correctly but I cannot configure anything!
(2) Output from df -h:
udev 3.9G 0 3.9G 0% /dev tmpfs 790M 1.9M 788M 1% /run /dev/sda2 450G 51G 376G 12% / tmpfs 3.9G 33M 3.9G 1% /dev/shm tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/loop1 2.4M 2.4M 0 100% /snap/gnome-calculator/180 /dev/loop2 5.0M 5.0M 0 100% /snap/canonical-livepatch/42 /dev/loop3 15M 15M 0 100% /snap/gnome-logs/43 /dev/loop4 18M 18M 0 100% /snap/pdftk/9 /dev/loop5 141M 141M 0 100% /snap/gnome-3-26-1604/70 /dev/loop6 43M 43M 0 100% /snap/gtk-common-themes/701 /dev/loop7 13M 13M 0 100% /snap/gnome-characters/124 /dev/loop8 3.8M 3.8M 0 100% /snap/gnome-system-monitor/51 /dev/loop9 88M 88M 0 100% /snap/core/5548 /dev/loop10 35M 35M 0 100% /snap/gtk-common-themes/319 /dev/loop11 15M 15M 0 100% /snap/gnome-logs/37 /dev/loop12 13M 13M 0 100% /snap/gnome-characters/103 /dev/loop13 3.8M 3.8M 0 100% /snap/gnome-system-monitor/57 /dev/loop14 2.3M 2.3M 0 100% /snap/gnome-calculator/238 /dev/loop0 4.8M 4.8M 0 100% /snap/canonical-livepatch/49 /dev/loop15 87M 87M 0 100% /snap/core/4917 /dev/loop16 15M 15M 0 100% /snap/gnome-logs/45 /dev/sda1 511M 4.7M 507M 1% /boot/efi tmpfs 790M 16K 790M 1% /run/user/121 tmpfs 790M 16K 790M 1% /run/user/1000 /dev/sdb 459G 52G 384G 12% /media/myself/seagate500 /dev/loop17 5.0M 5.0M 0 100% /snap/canonical-livepatch/50
(3) Output from cat /etc/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). # # # / was on /dev/sda2 during installation UUID=f345d4c5-7a21-4f42-8991-49330aecb1d9 / ext4 errors=remount-ro 0 1 # /boot/efi was on /dev/sda1 during installation UUID=394E-C62F /boot/efi vfat umask=0077 0 1 /swapfile