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fedora 23 kernel upgrade causing non-bootable system

asked 2016-04-06 08:41:12 -0500

ErkanA gravatar image

updated 2016-04-06 15:01:20 -0500

florian gravatar image

Hello, I can install F23 just fine, after first update kernel is being upgraded to 4.4.6 and I can not boot with this kernel. After kernel selection menu in boot, the fedora icon gets more than half full, then computer crashes, non of the keys even num lock won't respond. I can still use the F23 stock kernel fine.

Intel HM170 chipset

nvidia 840mx discrete gpu

I7 6700hq cpu

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more information needed...

Either you press ESC when the system boot stalls, and see what's written there, or you better boot one of the older kernels and take a look at the boot logs. journalctl -b outputs messages from the last boot. You would be interested in the boot before the last boot (the one that crashed): journalctl -b-1.

florian gravatar imageflorian ( 2016-04-06 11:52:11 -0500 )edit

i just compared good (kernel 4.2) and bad (kernel 4.4) boot logs using journalctl -b and system time is the only change but bad kernel boot hanged just before login.

Apr 06 21:16:18 e850 audit[2433]: USER_START pid=2433 uid=1000 auid=1000 ses=1 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_systemd,pam_unix,pam_xauth acct="root" exe="/usr/bin/su" hostname=? addr=? terminal=pts/0 res=success'

this might be because of nvidia 940mx which is supported with kernel 4.5 if I am not wrong.

ErkanA gravatar imageErkanA ( 2016-04-06 13:44:49 -0500 )edit

nvidia def has something to do with it...

gobigobi66 gravatar imagegobigobi66 ( 2016-04-06 21:09:27 -0500 )edit

Could you try to specify vesa mode on kernel bootargs line?

mrTuborg gravatar imagemrTuborg ( 2016-04-07 00:42:57 -0500 )edit

right now I don't know how to do that but I will search and report with the results. edit : i set gxpayload=1920x1080, loaded kernel 4.4.6, i actually got login screen but computer was hang, could not login.

ErkanA gravatar imageErkanA ( 2016-04-07 00:51:14 -0500 )edit

2 Answers

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answered 2016-04-07 03:11:03 -0500

genodeftest gravatar image
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answered 2016-04-06 21:09:40 -0500

Then use the one that works.

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Asked: 2016-04-06 08:40:57 -0500

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Last updated: Apr 07 '16