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Tasklist

FS#46520 - kernel update to 4.2.2 caused cannot find root device error

Attached to Project: Arch Linux
Opened by ahmad (niceman) - Thursday, 01 October 2015, 22:08 GMT
Last edited by Doug Newgard (Scimmia) - Saturday, 03 October 2015, 14:07 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To No-one
Architecture x86_64
Severity Critical
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
after updating the mainline kernel to 4.2.2 it says "cannot find root partition with UUID=XX... you're being dropped to a recovery shell"

and after that it just freezes.

booting into the live image and issuing "genfstab" and then "grub-mkconfig" didn't solve it although the UUID found in fstab matches that in grub.cfg

downgrading was the solution.

Additional info:
* package version(s)
* config and/or log files etc.

using the mainline kernel and KDE plasma 5 with sddm and the latest packages(except the kernel)

Steps to reproduce:
1-update the kernel to 4.2.2.
2-reboot.
3-choose Arch Linux from grub menu
4-wait.
This task depends upon

Closed by  Doug Newgard (Scimmia)
Saturday, 03 October 2015, 14:07 GMT
Reason for closing:  Not a bug
Comment by Doug Newgard (Scimmia) - Friday, 02 October 2015, 15:07 GMT
So did the UUID change or is it simply not available or what?
Comment by ahmad (niceman) - Friday, 02 October 2015, 16:06 GMT
@Doug I don't think the UUID changed.

the thing is that I have a working /etc/fstab with 4.2.1, just not with 4.2.2 .

the problem is that the new kernel somehow says it didn't find the root partition when the UUID is correct in both grub.cfg and fstab, maybe it can't read the UUID, don't know what the issue as the system freezes after dropping me to the recovery shell(I'm staying with 4.2.1 for now).
Comment by Doug Newgard (Scimmia) - Friday, 02 October 2015, 16:15 GMT
And at the recovery shell, what UUIDs are present?
Comment by ahmad (niceman) - Saturday, 03 October 2015, 09:52 GMT
I updated it again and it works now, strange !

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