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[all variants] UUID and Grub

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http://ubuntuforums.org – Q1. In /boot/grub/grub there are many references to a UUID. Where does grub get this reference? I would like to change the source and then run update-grub. I prefer not to edit the grub file manually because then when I do run update-grub the UUID will come back. Q2. There are some obvious drawbacks to using UUID's in grub and fstab, but what are the advantages for a home desktop user? I can't think of any but there must be some. pgmer6809 (Hardware)

dayu's picture
Submitted by dayu on 09/05/2012

Stories similar to [all variants] UUID and Grub

Is it possible to use grub-install or update-grub to just search on specific disk/partition? (or ignore specific)?

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using labels in grub2. How? 2 years 45 weeks ago

I want to generate a grub.conf that will search for my /dev/sda1 based on the filesystem label, not the UUID.

I did change /etc/default/grub to so that GRUB_DISABLE_LINUX_UUID="true" and I regenerated grub.cfg.

Hello, I wasn't sure where to post this issue so I figured I could do it here. It's both a GRUB and BURG issue, both work the same way. Anyways, I have GRUB version 1.98-1ubuntu13. I just did some modifications to my partitions using GParted. Everything went fine and my other OSses were detected fine by the OS-prober script. I had a problem with my Archlinux partition though.

Well, you can see your RAID partitions and you're getting GRUB to load, and you are even being dropped to the recovery shell which means that the /boot partition is being found and is accessible. All vary, vary good things.I would boot into the Arch live CD/USB again. Then check the UUID of the / Root partition.

Do you know the partition that is supposed to be your root partition?Grub cannot find it by its UUID.   Reboot, at the grub menu, highlight the kernel you want to boot, and press 'e'.  You are dropped into a simple editor which will allow you to change the boot command.  Replace references to /dev/disk/by-uuid/...

wolfcore wrote:Before rebooting, during the configuration of grub, I moved /boot/grub/ to /boot/efi/grub, because that was my efi-directory:Move back the directory to /boot/grub. /boot/efi/grubx64.efi is configured to look into /boot/grub (or rather <ESP>/grub, rather than <ESP>/efi/grub).

Device 'UUID=...' not found 38 weeks 5 days ago

I had the same UUID error on a fresh install just now.  For some reason grub was being stupid, or I did something out of order.  I fixed it by simply reinstalling the linux kernel via pacman and re-executing `mkinitcpio -o /boot/grub/grub.cfg`Although your errors sounds more like you need to add the md drivers to /etc/mkinitcpio.conf.  I'd start there if what worked for me does

The problem was the GRUB entry had not been set correctly. I found the entry of USB stick in /boot/grub/grub.cfg and did the following editing linux /boot/vmlinuz-linux root=UUID=(REPLACE WITH THE USB STICK UUID) ro quiet and then it works.

yuan_sh https://bbs.archlinux.org/profile.php?id=70384

2013-05-05T02:17:13Z

Otra posible salida: edita el archivo /etc/grub.d/40_custom y le agregas el menuentry que te interesa. Debes indicar disco y partición, UUID y kernel. Luego, sudo update-grub.