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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)
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do you use grub? what is your partition scheme?
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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)
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No one?
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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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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?
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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?
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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).
"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" - Richard Stallman
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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".
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Which ones? Show the errors and full output.
"UNIX is simple and coherent..." - Dennis Ritchie, "GNU's Not UNIX" - Richard Stallman
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