How to safely delete a distro

[Shmu26]

I have a few distros installed.
I want to delete the older ones and keep the new one (Kubuntu 21.10).
I know from experience that if I do this, the new distro will have booting issues.
What is the right way to do this?
I have no swap partition.
My fstab looks like this
# /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> # / was on /dev/sda7 during installation UUID=eaf78476-74e0-40e1-993a-6efd5c0c561e / ext4 errors=remount-ro 0 1 # /boot/efi was on /dev/sda2 during installation UUID=2641-384E /boot/efi vfat umask=0077 0 1 /swapfile none swap sw 0 0 /dev/disk/by-uuid/bb38277b-a6df-42dc-9079-9864c822426a /mnt/bb38277b-a6df-42dc-9079-9864c822426a auto nosuid,nodev,nofail,x-gvfs-show 0 0 /dev/disk/by-uuid/22EC446AEC4439F5 /mnt/22EC446AEC4439F5 auto nosuid,nodev,nofail,x-gvfs-show 0 0 /dev/disk/by-uuid/7fe6f0e9-d71f-449f-9e02-985f048e1ecb /mnt/7fe6f0e9-d71f-449f-9e02-985f048e1ecb auto nosuid,nodev,nofail,x-gvfs-show 0 0

 

[Condobloke]

Is the 'new' distro new enough that you can reinstall it?....Is this an option ?

If you have some data/music ....perhaps copy this to an external ?

Format the entire disc to ext4....and then reinstall Kububtu 21.10 ?

 

[Shmu26]

Is the 'new' distro new enough that you can reinstall it?....Is this an option ?

If you have some data/music ....perhaps copy this to an external ?

Format the entire disc to ext4....and then reinstall Kububtu 21.10 ?

Reinstall and redo everything is too hard.
But I have TimeShift backups with all files saved in Home.
An idea I thought of:
1 Reinstall Kubuntu 21.10
2 Save the fstab file to a different media
3 Run a Timeshift backup restore
4 copy the saved fstab file into the system

 

[Condobloke]

3 Run a Timeshift backup Restore

That sounds good to me.....././when I installed a new M.2 drive, I did a similar thing

((Reinstalled, using the whole disk.....this allowed Linux Mint (in my case) to sort out the partitioning needed.
Accessed Timeshift, from the fresh install, and Restored the latest snapshot
etc))

 

[Shmu26]

That sounds good to me.....././when I installed a new M.2 drive, I did a similar thing

((Reinstalled, using the whole disk.....this allowed Linux Mint (in my case) to sort out the partitioning needed.
Accessed Timeshift, from the fresh install, and Restored the latest snapshot
etc))

Thanks. I will try this when I am really sure I want to nuke my manjaro installation...

 

[Shmu26]

I nuked Manjaro today, and I noticed an interesting thing. My Kubuntu partition was sda7, and remained sda7. Now I have no sda6 at all. And I have no booting issues, either.

 

[Condobloke]

Sounds like a Win to me.