Linux Lite does'not start after I've installed another distribution

[JohnD]

It's a long story of last saturday and sunday. I try not to bore you -- and don't tell the whole story.

I've upgraded an older Linux version -- some years not used -- on the same hard drive with Linux Lite. After this I was not able to start Linux Lite. Something like "There is not such a file" comes after selecting Linux Lite in the grub menu.

Then I've installed a new Linux to test it and to get a clean system for recovering Linux Lite: Emmabüntus. During installation of Emmabüntus there was a weird problem. This was why I deleted the swap partition [tt]/dev/sda10[/tt]. Linux Lite was at [tt]/dev/sda11[/tt]. Now Linux Lite's partition is shown as [tt]/dev/sda10[/tt], But I can not open it.

I'm not able to mount the partition of Linux Lite from Emmabüntus Linux. But it was not touched by any access of mine.

Code:

john(at)pegasus ~
$ sudo mount /dev/sda10 /media/linux_lite/
[sudo] password for john:
mount: wrong fs type, bad option, bad superblock on /dev/sda10,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
john(at)pegasus ~
$  dmesg | grep sda10
[    2.878049]  sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 sda13 sda14 sda15 >
[20415.691094] EXT4-fs (sda10): VFS: Can't find ext4 filesystem
[118250.361243] FAT-fs (sda10): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
[124913.549921] FAT-fs (sda10): utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive!
john(at)pegasus ~

What might be the reason, that Gparted says, it does not know the file system of the partition on which Linux Lite is installed?

Code:

john(at)pegasus ~
$ sudo tune2fs -l /dev/sda10                                                                                     
tune2fs 1.42.12 (29-Aug-2014)
tune2fs: Bad magic number in super-block while trying to open /dev/sda10. Couldn't find valid filesystem superblock.
john(at)pegasus ~

What is the crap with those magical number? Who the heck has changed it?

Regards
JohnD

[firenice03]

Most likely grub was updated in the other Linux system during the update, in 3.0 LL grub still liked to be the in charge grub..

This worked for me  https://www.linuxliteos.com/forums/start.../#msg30095

Not sure if this would work in your case.. But I pooched my LL3.2 (updated from 3.0) grub when I dual booted LL3.4..

I pretty much copied grub from a Live USB mostly the following as suggested by gold_finger:

*  Mount the LL2 root partition on the HDD to the live environment

Code:

sudo mount /dev/sdXY /mnt

*  Install grub to the MBR of sda drive

Code:

sudo grub-install --boot-directory=/mnt/boot /dev/sdX

*  Unmount the LL2 root partition

Code:

sudo umount /dev/sdXY

*  Close terminal, shutdown live DVD and remove from tray. Then Reboot..

*  Log in and update grub and reboot

Code:

sudo update-grub

[JohnD]

[member=5414]firenice03[/member]:

One problem is that I was not able to mount the partition of LL:

Code:

john(at)pegasus ~
$ sudo mount /dev/sda10 /media/linux_lite/
[sudo] password for john:
mount: wrong fs type, bad option, bad superblock on /dev/sda10,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.

[tt]/dev/sda10[/tt] ist the partition of Linux Lite.

[JohnD]

I've now installed Linux Lite in a new partition. But have not got some files from the old partition, which I would like to have.

Code:

root[member=6591]pegasus[/member]:/home/john# blkid /dev/sda10                                           
/dev/sda10: PARTUUID="dcfb362e-0a"
root[member=6591]pegasus[/member]:/home/john# blkid -i /dev/sda10
DEVNAME=/dev/sda10
MINIMUM_IO_SIZE=4096
PHYSICAL_SECTOR_SIZE=4096
LOGICAL_SECTOR_SIZE=512
root[member=6591]pegasus[/member]:/home/john#

May be I should try photorec.