Stuck at Grub cannot login

[Lambda-User]

OK twisted stuff. Went on to find someone saying you need to e2fsck the partition just before you tune2fs . So did.

Code:

lubuntu@lubuntu:~$ sudo e2fsck /dev/sda1
e2fsck 1.43.5 (04-Aug-2017)
/dev/sda1: clean, 278663/2252160 files, 3384458/9036024 blocks
lubuntu@lubuntu:~$ sudo tune2fs -U random /dev/sda1
tune2fs 1.43.5 (04-Aug-2017)
Setting UUID on a checksummed filesystem could take some time.
Proceed anyway (or wait 5 seconds) ? (y,N) <proceeding>

You would think if you blkid as suggested in the reference page you would see a difference but no...

Code:

lubuntu@lubuntu:~$ blkid
/dev/sda1: UUID="b2d85e0f-559b-4350-9ec8-83860ed5740a" TYPE="ext4" PARTUUID="7ec4ada2-01"
/dev/sda5: UUID="b2d85e0f-559b-4350-9ec8-83860ed5740a" TYPE="ext4" PARTUUID="7ec4ada2-05"
/dev/sr0: UUID="2017-10-29-01-25-15-00" LABEL="Boot-Repair-Disk 32bit" TYPE="iso9660" PTUUID="7e809be6" PTTYPE="dos"
/dev/loop0: TYPE="squashfs"
/dev/sda6: UUID="55636d3c-1197-4022-a365-1409b12eb49b" TYPE="swap" PARTUUID="7ec4ada2-06"
/dev/zram0: UUID="4701e26f-c6d4-4670-ac10-534417e5d723" TYPE="swap"
/dev/sdb1: SEC_TYPE="msdos" LABEL="USB00" UUID="53A9-130E" TYPE="vfat"

This is debian bug apparently which would be closed, but maybe not on the version used in grub-repair...
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=857336

Anyhow, blkid used on grub-repair 32-bit doesn't give you the straight dope.  But if you do a tune2fs -l you get

Code:

lubuntu@lubuntu:~$ sudo tune2fs -l /dev/sda1
tune2fs 1.43.5 (04-Aug-2017)
Filesystem volume name:   <none>
Last mounted on:          /mnt/boot-sav/sda5
Filesystem UUID:          fa18b6db-67e1-4bdb-ac96-26184cb12d35
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              2252160
Block count:              9036024
Reserved block count:     451800
Free blocks:              5651566
Free inodes:              1973497
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      1021
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8160
Inode blocks per group:   510
Flex block group size:    16
Filesystem created:       Thu Jul 13 03:32:17 2017
Last mount time:          Mon Apr 15 13:16:38 2019
Last write time:          Mon Apr 15 21:32:16 2019
Mount count:              0
Maximum mount count:      -1
Last checked:             Mon Apr 15 13:51:44 2019
Check interval:           0 (<none>)
Lifetime writes:          182 GB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:              256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      a1564bc5-8d00-459f-a47b-702989d3202d
Journal backup:           inode blocks

lubuntu@lubuntu:~$ sudo tune2fs -l /dev/sda5
tune2fs 1.43.5 (04-Aug-2017)
Filesystem volume name:   <none>
Last mounted on:          /mnt/boot-sav/sda5
Filesystem UUID:          7167ab0e-c4fb-49b8-912a-eb025f50f33e
Filesystem magic number:  0xEF53
Filesystem revision #:    1 (dynamic)
Filesystem features:      has_journal ext_attr resize_inode dir_index filetype extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags:         signed_directory_hash
Default mount options:    user_xattr acl
Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              1272960
Block count:              5091328
Reserved block count:     254566
Free blocks:              1769335
Free inodes:              994297
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      1022
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8160
Inode blocks per group:   510
Flex block group size:    16
Filesystem created:       Thu Jul 13 03:32:17 2017
Last mount time:          Mon Apr 15 13:16:38 2019
Last write time:          Mon Apr 15 18:52:28 2019
Mount count:              0
Maximum mount count:      -1
Last checked:             Mon Apr 15 13:25:28 2019
Check interval:           0 (<none>)
Lifetime writes:          182 GB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:              256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      a1564bc5-8d00-459f-a47b-702989d3202d
Journal backup:           inode blocks

The short of it is Filesystem UUID have been changed by  tune2fs  regardless of what blkid says.

Beware false negatives....
So I can mark 4 as done I guess.
And proceed to 5.

• Step 5: Update grub and fstab
  

Lambda-user