Arch Linux

grimboot

Member

Registered: 2015-10-14

Posts: 6

Boot stuck

Hello,

I am running Arch on a ThinkPad L450. I ran sudo pacman -Syu and then the network controller stopped working. I tried to reboot but the system suddenly stuck when booting. The only Message that is shown is:
"Unsopported brightness interface, please contact i"
The brightness interface warning seems to be a known bug on ThinkPads and it worked before although the warning was shown.

Since I do not know much about boot loader configuration and debugging I would like to ask if someone could suggest what to do to get my system booting again. Any help would be highle appreciated!

Last edited by grimboot (2015-10-14 16:26:02)

fabioamd87

Member

Registered: 2008-11-22

Posts: 128

Re: Boot stuck

do you use grub? what is your partition scheme?

grimboot

Member

Registered: 2015-10-14

Posts: 6

Re: Boot stuck

Is there a way to determine what partition scheme I am using?

EDIT: I am using GNU GRUB version 2.02^beta2

Last edited by grimboot (2015-10-14 16:44:29)

grimboot

Member

Registered: 2015-10-14

Posts: 6

Re: Boot stuck

No one?

jasonwryan

Anarchist

From: .nz

Registered: 2009-05-09

Posts: 30,424

Website

Re: Boot stuck

Don't bump your thread: https://wiki.archlinux.org/index.php/Fo … te#Bumping

Please read How To Ask Questions The Smart Way; you can then easily google how to print your partition setup and paste that and your grub config.

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Arch + dwm   •   Mercurial repos  •   Surfraw

Registered Linux User #482438

grimboot

Member

Registered: 2015-10-14

Posts: 6

Re: Boot stuck

I am using GNU GRUB version 2.02^beta2.

I tried to get debug information from GRUB by passing paramters according to Kernel parameters.
No output is shown except for the brightness interface warning.

Next I tried to log in via CLI. Nothing happend when I entered username and password. The credentials are correct. Switching back to X Window by pressing cmd+alt+f7 also does not work.

Next I tried to boot from grub commandline with:

grub> linux /vmlinuz root=/dev/sda1

Results in:

error: file `/vmlinuz' not found.

In grub cli the

ls

command prints out:

(proc) (hd0) (hd0,gpt2) (hd0,gpt1) (hd1) (hd1,gpt3) (hd1,gpt2) (hd1,gpt1)

What else can I try?And which Information can I provide that would be useful?

grimboot

Member

Registered: 2015-10-14

Posts: 6

Re: Boot stuck

I tried to boot into single user mode and get the following error:

/bin/sh: error while loading shared libraries: libncursesw.so.5: cannot open shared object file: No such file or directory

Is it possible that the missing library is causing the X server to crash and also the tty and single user mode terminal session?

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 29,554

Website

Re: Boot stuck

Yes, and this is because somehow you did a partial upgrade - perhaps you interupted the -Syu process.

You'll likely need to boot into a live USB, then upgrade your system from there (by mounting your partitions under /mnt and passing -r /mnt to pacman).

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"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman

grimboot

Member

Registered: 2015-10-14

Posts: 6

Re: Boot stuck

Thx for the reply. I mountet root in a Live CD session under /mnt. Then I ran:

pacman -r /mnt -Su --cachedir /mnt

but I got:

Errors occured, no packages were upgraded

Some packages "exist on the filessystem".

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 29,554

Website

Re: Boot stuck

Which ones?  Show the errors and full output.

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"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" -  Richard Stallman