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I have Ubuntu 18.04 (Bionic) installed on 1 partition (ext 4) using whole disk. I want to downsize it with GParted running from live USB, but after resizing, 18.04 does not boot, showing lots of errors.

I was able to try several times, because I have an ISO image of the system and I recreate it after with Clonezilla.

What should I do?

ponsfrilus
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Kirby-1989
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  • Do you use grub? Grub stage 1 sits in the MBR (master boot record; or first 512 byte sector of HDD), which is really little more than a pointer to where the later stages of grub are (these reside in /boot/). It could be your 'resize' caused stages 1.5 & 2 of grub to move position on the disk, and thus you need to re-write the MBR to point to the new location? Do you use grub? & MBR? or use eufi? – guiverc Jul 14 '18 at 05:32
  • Do not move the head end of the partition. It should work to move the tail end of the partition to shrink the partition. Maybe it helps to check/repair the file system: run sudo e2fsck -cf /dev/sdx1 where x is the drive letter, for example a or b. See this link for more details. (Try with gparted after you have checked/repaired the file system. You can also check the S.M.A.R.T. information. – sudodus Jul 14 '18 at 06:54
  • when I run : e2fsck -cf /dev/sda1 i get :

    kirby@kirby-Aspire-ES1-433:~$ sudo e2fsck -f /dev/sda1 e2fsck 1.44.1 (24-Mar-2018) /dev/sda1 is mounted. e2fsck: Cannot continue, aborting.

    how to do it ?

     – Kirby-1989 Jul 14 '18 at 07:39
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    Possible duplicate of How to resize partitions? followed by How can I repair grub? – David Foerster Jul 14 '18 at 09:55

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