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Bug#777243: Boot fails due to missing ext4 module



On Fri, 2015-02-06 at 22:57 +0100, Rafal Pietrak wrote:
> W dniu 06.02.2015 o 20:31, Ben Hutchings pisze:
> > Control: retitle -1 Boot fails due to missing ext4 module
> >
> > On Fri, 2015-02-06 at 18:48 +0100, Rafał Pietrak wrote:
> >> W dniu 04.02.2015 23:07, Ben Hutchings pisze:
> > [...]
> >>>> Severity: grave
> >>>> Tags: newcomer
> >>>> Justification: renders package unusable
> >>>>
> >>>> I've upgraded my LG notebook (X-note: LS50a) from wheezy to jessie and:
> >>>> 1. the upgrade have installed kernel "version-i585" in addition to my earlier
> >>>> (automatically installed during an upgrade to wheezy) "version-i486".
> >>>> 2. when booting "i486", it fails to modprobe "ext4-fs" during the boot. It
> >>>> breaks boot sequence, but manual (from shell prompt) modprobe ext4 does not
> >>>> load the module into the kernel.
> > Can you clarify how far the system boots?  Does it stop at a shell with
> > the prompt '(initramfs)'?
> 
> Stops at: "maintenance mode. Give root password or control-D"

Oh, so this is not an initramfs problem as I suspected.

> And I think, it does that because /srv/pgdat is ext4 and cannot be 
> mounted because of missing ext4.ko within the kernel.
[...]

Then I think the package is not properly installed.
Do these commands produce any output?

    debsums -c linux-image-3.2.0-4-486
    debsums -c linux-image-3.16.0-4-586

If not, does modprobe start working if you run 'depmod' first?

Ben.

-- 
Ben Hutchings
The first rule of tautology club is the first rule of tautology club.

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