Arch Linux

vimsucks

Member

Registered: 2016-09-26

Posts: 5

[SOLVED]After installing linux-mainline kernel, unable to boot

The error message:

ERROR: Unable to find root device '/dev/sda2'.

You are being dropped into recovery shell.

I just did a little change to the kernel in order to make the xf86-video-amdgpu driver to support my card AMD R7-M265,
following the wiki https://wiki.archlinux.org/index.php/AM … ands_cards
Anyone can help?

Last edited by vimsucks (2017-01-08 10:50:04)

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,424

Website

Re: [SOLVED]After installing linux-mainline kernel, unable to boot

What boot loader/manager? Did you point it to the new kernel? Paste your config...

Moving to NC...

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Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

agapito

Member

From: Who cares.

Registered: 2008-11-13

Posts: 645

Re: [SOLVED]After installing linux-mainline kernel, unable to boot

The error message:

ERROR: Unable to find root device '/dev/sda2'.

You are being dropped into recovery shell.

I just did a little change to the kernel in order to make the xf86-video-amdgpu driver to support my card AMD R7-M265,
following the wiki https://wiki.archlinux.org/index.php/AM … ands_cards
Anyone can help?

https://www.phoronix.com/forums/forum/p … arly/page2

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Excuse my poor English.

vimsucks

Member

Registered: 2016-09-26

Posts: 5

Re: [SOLVED]After installing linux-mainline kernel, unable to boot

What boot loader/manager? Did you point it to the new kernel? Paste your config...

Moving to NC...

I use systemd-boot
this is my config

title		Arch Linux
linux		/vmlinuz-linux-mainline
initrd		/initramfs-linux-mainline.img
options		root=/dev/sda2 rw resume=/dev/sdb1

robt77

Member

From: Manchester

Registered: 2014-10-26

Posts: 21

Website

Re: [SOLVED]After installing linux-mainline kernel, unable to boot

What boot loader/manager? Did you point it to the new kernel? Paste your config...

Moving to NC...

I use systemd-boot
this is my config

title		Arch Linux
linux		/vmlinuz-linux-mainline
initrd		/initramfs-linux-mainline.img
options		root=/dev/sda2 rw resume=/dev/sdb1

I have had the same issue and have reverted to using the default kernel,  According to the notes on the AUR page "you can fixed it by disabling CONFIG_MODVERSIONS,
more info:
https://www.phoronix.com/forums/forum/p … post905057
enckse commented on 2016-10-16 13:53"  not had chance to try this yet though.