Arch Linux

ohtorishuya

Member

Registered: 2025-08-15

Posts: 2

failed to boot into arch while dual booting

dual booting arch with win11, was working fine until something happened? not really sure why but booting into arch fails, havent tried win11.  tried solutions from previous forum posts, nothing worked so far.

Warning: /lib/modules/6.16.0-arch2-1/modules.devname not found - ignoring
ERROR: device 'UUID=[insert uuid here im not retyping that]' not found. Skipping fsck.
mount: /new_root: can't find UUID=[insert same uuid here].
ERROR: Failed to mount '[same uuid, again]' on real root
You are now being dropped into an emergency shell.
sh: can't access tty; job control turned off
[rootfs ~]#

skunktrader

Member

From: Brisbane, Australia

Registered: 2010-02-14

Posts: 1,674

Re: failed to boot into arch while dual booting

Was your boot partition mounted when you updated the kernel?

ohtorishuya

Member

Registered: 2025-08-15

Posts: 2

Re: failed to boot into arch while dual booting

yes, it was mounted to /mnt/boot/efi

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,177

Re: failed to boot into arch while dual booting

tried solutions from previous forum posts, nothing worked so far.

Many solutions, all the solutions.
Some solution, big solution, strong solution, tears pouring down its vectors, came to me and said "sir! it's not working, sir!"
But we've the best solutions and we're fixing it, although we've already fixed it, we're just not getting credits for that from the fake news LWN, but we're fixing it after Allan broke it.

https://bbs.archlinux.org/viewtopic.php?id=57855

Warning: /lib/modules/6.16.0-arch2-1/modules.devname not found - ignoring

Something bad happened while generating the initramfs.
Boot the install iso, mount your root partition into /mnt, the boot partition (if you have one) into /mnt/boot, then arch-chroot into /mnt and re-install the kernel.
You can

pacman -S linux |& tee /tmp/pacman.log

to log that and then

cat /tmp/pacman.log | curl -F 'file=@-' 0x0.st

upload it.
Also check

df -h

, dual boots sometimes run out of space on the boot partition if you actually are using the ESP as boot partition.

Fwwi, /mnt/boot/efi would be the ESP when updating offline.
That's not your /boot partition (you presumingly don't have one?) - unless you're using https://wiki.archlinux.org/title/Unified_kernel_image ?

ls -lR /mnt/boot # before mounting anything there
ls -lR /mnt/boot # after mounting anything there or int /mnt/boot/efi

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