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#1 2021-06-21 03:09:34

Toadfield
Member
Registered: 2021-06-08
Posts: 72

When I start my pc,I get "mount: /new_root:unknown filesystem `ext4`"

When I start my pc,I only see this:

mount: /new_root:unknown filesystem type `ext4` 
You are now being dropped into emergency shell 
sh:can't access tty; job control turned off
rootfs]$

and I can't type anything.
I don't know why this happens,that never happened before.
I thought that maybe the mkinitcpio is broken,so I updated it by chrooting in my drive an doing

mkinitcpio -P

,but when I then reboot I still get the same error,so I don't think that it's mkinitcpio fault.
This error first occured when my desktop frozen and I had to turn off my pc.
I need help as fast as possible,it is so boring without a working system.

Last edited by Toadfield (2021-06-21 04:32:13)

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#2 2021-06-21 05:17:56

Mr Victory
Member
Registered: 2021-06-10
Posts: 41

Re: When I start my pc,I get "mount: /new_root:unknown filesystem `ext4`"

Please provide as much details as possible. What is the last thing you did before the error? Did you change the filesystem? Did you create, delete, modify or change UUID of partitions? Did you do an update prior the error? What are your kernel parameters? Send the main configuration file of your bootloader. (example: for GRUB, send /boot/grub/grub.cfg)

Use

[code] <your code here> [/code]

tags when sharing the output of a command or a file.

Try booting with the fallback initramfs, it may work as a temporary solution.

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#3 2021-07-01 14:54:23

burny02
Member
Registered: 2021-07-01
Posts: 129

Re: When I start my pc,I get "mount: /new_root:unknown filesystem `ext4`"

I'm having this issue as well from around the same kind of  timeframe after updating the kernel

I'm able to boot into linux kernel, but not linux-lts

It's updated a few times since then and I've manually mkinitcpio -P. No errors

I'm using refind, not grub. All that I've changed from default is the timeout

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#4 2021-07-18 12:04:20

burny02
Member
Registered: 2021-07-01
Posts: 129

Re: When I start my pc,I get "mount: /new_root:unknown filesystem `ext4`"

For anyone else experiencing this problem: for me it was rEFInd boot manager. It was passing the wrong initramfs image.

Arch wiki saved me :



For rEFInd to support the naming scheme of Arch Linux kernels and thus allow matching them with their respective initramfs images, you must uncomment and edit extra_kernel_version_strings option in refind.conf. E.g.:

esp/EFI/refind/refind.conf

...
extra_kernel_version_strings linux-hardened,linux-zen,linux-lts,linux
...




Not sure why after such a long time using lts kernel it was suddenly an issue, but it suddenly was.

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