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I am getting a kernel panic "not syncing: VFS: unable to mount root fs on unknown-block(0,0)" with kernel 4.13.0-43 on Ubuntu 17.10. I can boot just fine with 4.13.0-41. After a successful boot using 4.13.0-41 I can get 4.13.0-43 to boot if I boot in text mode and remove the quiet and splash options. Anyone have any ideas as to what is happening? My disk drive is a 250Gb disk with one partition (I accepted the default options when I installed the system).

  • Start the Disks application and take a look at the SMART Data & Tests. – heynnema May 27 '18 at 23:52
  • I checked the SMART status of the disk and it passed. I just ran the latest updates and a new version of util-linux was installed. I have rebooted the laptop 5 or 6 times now using the 4.13.0-43 version of the kernel. The problem started last week after the unattended upgrades ran. I am going to keep my eye on this for a while. Perhaps the patch to util-linux solved the issue. – sunflowerastro May 28 '18 at 9:45
  • please see my answer for more procedure... – heynnema May 28 '18 at 12:47
  • I ran the file system checker as suggested and no errors were found. My system is getting the same error again after about 10 successful reboots. – sunflowerastro May 28 '18 at 13:20
  • please see the update to my answer... – heynnema May 28 '18 at 13:43
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After checking the SMART status, lets check your file system...

To check the file system on your Ubuntu partition...

  • boot to the GRUB menu
  • choose Advanced Options
  • choose Recovery mode
  • choose Root access
  • at the # prompt, type sudo fsck -f /
  • repeat the fsck command if there were errors
  • type reboot

If for some reason you can't do the above...

  • boot to a Ubuntu Live DVD/USB
  • start gparted and determine which /dev/sdaX is your Ubuntu EXT4 partition
  • quit gparted
  • open a terminal window
  • type sudo fsck -f /dev/sdaX # replacing X with the number you found earlier
  • repeat the fsck command if there were errors
  • type reboot

Update #1:

Rebuild initramfs...

In terminal...

  • sudo update-initramfs -c -k 4.13.0-43-generic # update initramfs
  • reboot # to version 4.13.0.43

Run memtest...

  • I ran the update-initramfs command. No errors were reported and I have successfully booted the laptop 15 times in a row with the 4.13.0-43-generic kernel. It seems to be behaving now. Thank you. – sunflowerastro May 28 '18 at 17:01

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