How do I remove lines from GRUB that no longer work?

[firenice03]

[member=37281]Von Kirkus[/member]   
hhhmmm from the working LL5.x desktop have you tried...

Code:

sudo update-grub

then reboot...

The grub command - will look for any installed OS's..
IF you have and the below is still what you get...

There are a few things...
Looks like you have 2 disks.. /sda and /sdb
  You can safely remove /sda4 as this is where LL4.8 resides/used to - you could have installed LL5 here...
This can be done from UI tools such as gparted.. (Unless you prefer commands.. such as fdisk)
*make sure you are deleting/removing the correct disk... (should you have a typo here)
removing /sda4 will remove the 4.8 and Advanced options    * Will need to update grub afterwards

As for Windows = /sda1 and /sdb1 I would not yet delete either partition just yet..
Curious if you have 2 disks and if you had multiple versions? or a typo??

Also, I assume Windows was UEFI as is LL5.x, was LL4.8 the same? ?

May not hurt to post a screenshot of GRUB and another of gparted or similar commands...

Code:

df -hT
lsblk

Screenshots can be added via https://www.freecinema2022.gq/forums/intro...uidelines/