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#1 2017-01-28 00:01:07

RaccoonPT
Member
Registered: 2017-01-27
Posts: 6

laptop doesn't start after kernel update

Hello,

Today there was a kernel update from 4.8 to 4.9. After the kernel update my laptop don't start anymore.

When these errors start to appear, and do not leave here!

https://postimg.org/image/3v2qr4ezj/

The wireless is will disable when I try to start.

The specs of my laptop are:
Asus UX42V
Intel® Core™ i5-3317U Dual Core
6 GB RAM
500gb drive

Is there anyone who could help?

Thanks,

arch_erro.jpg

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#2 2017-01-28 00:07:19

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 30,135
Website

Re: laptop doesn't start after kernel update

Chroot in and read pacman's log for the update and the journal for the failed boot.


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#3 2017-01-28 00:19:44

RaccoonPT
Member
Registered: 2017-01-27
Posts: 6

Re: laptop doesn't start after kernel update

How to solve this problem?

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#4 2017-01-28 00:50:48

WorMzy
Forum Moderator
From: Scotland
Registered: 2010-06-16
Posts: 10,836
Website

Re: laptop doesn't start after kernel update

No idea, the first step is to work out what the problem actually is. Jason gave you some tips on how to get started on figuring that out. Report back here with the information you have been directed to if you need some help working it out, but don't expect the community to have a magical cure-all that fixes all your problems with no effort on your own part.


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#5 2017-01-28 08:08:17

ztp
Member
Registered: 2014-02-13
Posts: 6

Re: laptop doesn't start after kernel update

As Jason suggested, you'll want to boot from your install media, mount your root partition somewhere, /mnt is convenient, and run "arch-chroot /mnt" to change into the root of your system. This should be familiar from when you did the installation and is covered in the install guide. Then take a look at your logs with journalctl and in the file /var/log/pacman.log for clues. If you're not sure what they mean, post the relevant parts here.

While you are at it, if the problem is not easily fixable you may want to install the LTS kernel while you are in there and see if that will boot so you will at least have a useable system. You'll need to mount your boot partition before you can do that from the chroot.

Last edited by ztp (2017-01-28 08:13:29)

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#6 2017-01-28 18:27:54

RaccoonPT
Member
Registered: 2017-01-27
Posts: 6

Re: laptop doesn't start after kernel update

Once you can, start after brute force. He asked me to install some updates and it appeared.

IMG_20170128_174338.jpg


The message is "echo 0 > /proc/sys/kernel/hung_task_timeout_secs”.

Sorry for the quality of the image. Then he hung up and went back to it!

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#7 2017-01-28 19:07:38

RaccoonPT
Member
Registered: 2017-01-27
Posts: 6

Re: laptop doesn't start after kernel update

I was able to reconnect and I already saw the pacman logfile. When you started giving the mistake have this:

http://pastebin.com/JiJaMubJ

Just could not see the logfile of the Journal anyone can help me?

Last edited by RaccoonPT (2017-01-28 19:08:10)

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#8 2017-01-28 19:10:14

RaccoonPT
Member
Registered: 2017-01-27
Posts: 6

Re: laptop doesn't start after kernel update

Updated once again now have this in pacman logfile:

http://pastebin.com/RwYmhA0w

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#9 2017-01-28 19:35:57

loqs
Member
Registered: 2014-03-06
Posts: 15,092

Re: laptop doesn't start after kernel update

Would recommend downgrading_the_kernel or install the linux-lts so you have a bootable system again.  This is just a workaround not a fix for the issue.
Edit:
Then see my comments for what might be the same issue https://bbs.archlinux.org/viewtopic.php … 9#p1687029

Last edited by loqs (2017-01-28 19:38:49)

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#10 2017-01-28 19:40:08

RaccoonPT
Member
Registered: 2017-01-27
Posts: 6

Re: laptop doesn't start after kernel update

I run this command "journalctl -b" and got this log file, here is only one part, because the file is quite large.

http://pastebin.com/v1aCgVtQ

Anyone can help me?

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#11 2017-01-28 19:45:11

graysky
Wiki Maintainer
From: :wq
Registered: 2008-12-01
Posts: 10,397
Website

Re: laptop doesn't start after kernel update

RaccoonPT wrote:

Anyone can help me?

What he said:

loqs wrote:

...install the linux-lts so you have a bootable system again.

If it is a 4.9.x problem just use lts until upstream fixes the issues assuming it's kernel related.

Last edited by graysky (2017-01-28 19:46:02)


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