My situation is 2 drives, one for operating system and one for storage.
Original OS drive died.
I had another backup drive with a complete install so I just installed it and updated it.
I need the other drive because it has all my latest files.
When I boot, the first on the list is for the old failed drive and obviously will not boot.
I can navigate grub and get correct drive to boot.
sudo grub-install
sudo grub-mkconfig
Both complete with no errors … when I reboot nothing has changed … it is installing grub on the wrong drive … or grub is booting from the wrong drive.
**\[fred-shop fred\]#** cat /etc/fstab
# /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>
UUID=0720-6328 /boot/efi vfat defaults,umask=0077 0 2
UUID=3633c94d-f188-4d8b-8116-f2b4f952d8ec / btrfs subvol=/@,defaults,compress=zstd:1 0 0
UUID=3633c94d-f188-4d8b-8116-f2b4f952d8ec /home btrfs subvol=/@home,defaults,compress=zstd:1 0 0
UUID=3633c94d-f188-4d8b-8116-f2b4f952d8ec /var/cache btrfs subvol=/@cache,defaults,compress=zstd:1 0 0
UUID=3633c94d-f188-4d8b-8116-f2b4f952d8ec /var/log btrfs subvol=/@log,defaults,compress=zstd:1 0 0
**\[fred-shop fred\]#**
I think that if I could just swap drive positions to change sdb1 and sdb2 since both drives have grub installed.
One is a 2.5" ssd and other is standard 3.5" … drives will not swap and cable wont reach.
From a chroot, try installing the install-grub script and run it.
pacman -S install-grub && install-grub
You may also want to enable the os-prober in /etc/default/grub and run update-grub first before running install-grub, so that it’ll correctly pick the drive(s) with one or multiple operating systems installed.
The second command just outputs to standard out. (Or are you redirecting that to /boot/grub/grub.cfg?)
Or use this instead, for the latter command.
sudo update-grub
It calls grub-mkconfig for you, and saves it.
$ cat `which update-grub`
#! /bin/sh
set -e
grub-mkconfig -o /boot/grub/grub.cfg "$@"
# workaround for https://git.savannah.gnu.org/cgit/grub.git/commit/id=3cf2e848bc03c44d30bb87e583d12efe7e7ccf75
# if grub is not updated in MBR/EFI dashes still won't work, hence we remove them
sed -i -e '/cryptomount -u/ {s/-//g;s/ u/ -u/g}' /boot/grub/grub.cfg
thank you very much … I believe update-grub is what I needed
I’m going to be honest I’m confused … I keep starting off of snapshots … I love manjaro for having those.
Seems like every time I start from one … I lose all my personal information.
So I start over … this time the system actually crashed and had to reboot …
I’m in a area where current temp is 105F and have a fan on me and computer … I do not have AC for the computer … I love manjaro and it is not the OS fault it crashed.
All I’m saying … I was forced into a reboot and it just automatically started on it’s own from the first selection in grub …
Then I ran update-grub and I saw where it picked up the different drives and also 3 snapshots … I saw and read and thought we got er this time … I will reboot it tomorrow.
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