Comments on: How to Change UUID of Partition in Linux Filesystem

By: Eduard

Eduard — Wed, 02 Feb 2022 18:40:45 +0000

In reply to W.C..

Exactly, I was searching for ways to change a PARTUUID, I already know how to change filesystem UUIDs.

So this page is totally misleading.

By: W.C.

W.C. — Mon, 18 Oct 2021 23:46:24 +0000

This isn’t about changing the partition UUID at all (PARTUUID in blkid output), but the *filesystem* UUID within the partition.

By: Tony Brown

Tony Brown — Tue, 25 May 2021 07:48:58 +0000

In reply to Tony Brown.

I have found the answer to my problem and that of many others struggling with M2-type onboard drives.

See my post here: https://ubuntuforums.org/showthread.php?t=2462553&p=14039565#post14039565

it redirects you to the Ubuntu forums where I give a step-by-step on how to do this.

Cheers tony.

By: RoteFahne

RoteFahne — Mon, 24 May 2021 18:40:40 +0000

You should have mentioned that after changing a system UUID, updating the fstab file will not make you boot into that system. You will need to run a live cd boot repair tool, as the old UUID appears many times in boot/grub/grub.cfg file which cannot be edited.

It is not that straightforward as it may seem after reading this article.

By: Tony Brown

Tony Brown — Thu, 20 May 2021 10:06:23 +0000

I know this is an old thread, but Ravi is the only one who seems to understand the need for this procedure after trawling the internet for solutions to my issue.

I have recently purchased an M2 drive for my system and cloned my old SSD to it using Clonezilla. Obviously, this produces 2 drives with identical UUIDs.

I have found when testing new distros it is impossible to disable the NVME M2 drive in the bios or any other means except physical removal from the motherboard. That is pretty daft, in most bios, there are options to disable any SATA slot but not the M2 slots.

That means I cannot use my old SATA drive for testing new distros or rectifying issues with my system, I have to experiment using my new M2 NVME drive, not something I want to do.

So using tune2fs seems to offer a solution for my ext4 system, but although it changes the primary address, the secondary one (why the hell do they need 2?) stays the same.

Have you got a solution you can suggest for my issue? I know I am not the only one who needs a solution to the lack of control of the M2 NVME drives, the forums are full of questions about it with not a single practical solution offered anywhere.

Ravi’s idea is the most promising so far.

Tony Brown