First, let's check your file system(s).
- boot to a Ubuntu Live DVD/USB in “Try Ubuntu” mode
- open a
terminal window by pressing Ctrl+Alt+T
- type
sudo fdisk -l
- identify the /dev/sdXX device name for your "Linux Filesystem"
- type
sudo fsck -f /dev/sda3, replacing sdXX with the number you found earlier
- type
sudo fsck -f /dev/sda1, replacing sdXX with the number you found earlier
- repeat the
fsck command if there were errors
- type
reboot
Review
Show me cat /etc/fstab and sudo blkid and sudo fdisk -l, and screenshots of the Disks app SMART Data & Tests data window (resize this window to capture all of the data).
I've reviewed the above, but didn't get the requested SMART data screenshot.
Note: If I can get the SMART data, I may make further recommendations.
Note: There is no SSD on this system.
There are a number of things wrong. The following excerpts and comments will detail the problems.
RAM
model name : AMD A8-5500 APU with Radeon(tm) HD Graphics
12 GB ram
AMD Processors are very fussy about RAM.
With 12G RAM, you must have 8G and 4G DIMMS, so your system cannot take speed advantage of having equal size/spec DIMMS, and memory interleaving is not being used.
Go to https://www.memtest86.com/ and download/run their free memtest to test your memory. Get at least one complete pass of all the 4/4 tests to confirm good memory. This may take a few hours to complete.
/etc/fstab
# /boot was on /dev/sda1 during installation
UUID=5dff6fb3-361f-4666-9462-45f78a65ab47 /boot ext4 defaults 0 2
You'll notice this same UUID in the systemd-analyze command output.
This should be:
# /boot was on /dev/sda1 during installation
UUID=5dff6fb3-361f-4666-9462-45f78a65ab47 /boot vfat defaults 0 1
ext4 should be vfat. The fsck test should be 1, not 2.
But you can't just change this in fstab. More detail in a moment.
fdisk -l (skipping /dev/loop1 ... /dev/loop30)
Each SNAP application slows down the boot. Remove SNAP apps as possible, and change to regular .deb/repo apps to speed things up.
Disketikettstyp: dos
If you've got a UEFI computer, then dos should be GPT partition table.
Enhet Start Början Slutet Sektorer Storlek Id Typ
/dev/sda1 * 2048 1953791 1951744 953M 83 Linux
Poster i partitionstabell är inte i diskordning
Same partition that I mention earlier, and it's not in the correct partition order. This effects boot time also.
Summary
- Backup your important data
- Lay down a fresh GPT partition table (this WILL wipe the disk), using
gparted
- Clean install Ubuntu
- Accept the installer's default partition plan
- Reinstall apps and data. Better to not use SNAP apps if possible.
- If possible, change 4G DIMM to a matching 8G DIMM
