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

[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