Arch Linux

MinuanoChamploo

Member

Registered: 2025-01-30

Posts: 4

[Solved] Unable to mount root fs on unknown-block(0, 0)

Hello everyone! I'm kinda newbie in Arch, so asking for help.

After packages update last evening, today I logged into Arch then rebooted it to log into Windows. After it I tried to log into Arch again but received message about kernel loading error. I had mounted all again like in installation guide, made new loading files with

mkinitcpio -p linux

and updated grub config file with

grub-makeconfig -o /boot/grub/grug.cfg

. After it I received this:

/dev/root: Can't open blockdev
VFS: Cannot open root device "UUID=...." or unknown-block(0, 0): error -6
Please append a correct "root=" boot option: here are the available partitions:
List of al bdev filesystems:
fuseblk
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0, 0)

(UUID of root dir and mnt dir are the same)

Update: Added full error image

Last edited by MinuanoChamploo (2025-02-01 19:24:52)

d_fajardo

Member

Registered: 2017-07-28

Posts: 1,658

Re: [Solved] Unable to mount root fs on unknown-block(0, 0)

Can you post your partitioning scheme?

MinuanoChamploo

Member

Registered: 2025-01-30

Posts: 4

Re: [Solved] Unable to mount root fs on unknown-block(0, 0)

/dev/nvme0n1p5 — swap
/dev/nvme0n1p6 — /mnt
/dev/nvme0n1p7 — /mnt/boot (EFI filesystem) Windows and Arch EFI
Previous parts from 1 to 4 for Windows

MinuanoChamploo

Member

Registered: 2025-01-30

Posts: 4

Re: [Solved] Unable to mount root fs on unknown-block(0, 0)

I haven't localized the problem, but I have found a solution for myself.

I installed the latest iso file on my USB and formatted the EFI partition on the computer, then used pacstrap, created a new fstab file, and installed GRUB again (according to the installation guide and the GRUB Arch wiki).

daveman76

Member

Registered: 2025-02-09

Posts: 3

Re: [Solved] Unable to mount root fs on unknown-block(0, 0)

I haven't localized the problem, but I have found a solution for myself.

I installed the latest iso file on my USB and formatted the EFI partition on the computer, then used pacstrap, created a new fstab file, and installed GRUB again (according to the installation guide and the GRUB Arch wiki).

How do you do that???
Please, same error here!