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Re: System won't boot anymore after upgrade to jessie

On Tue, 09 Jan 2018, Elisabetta Falivene wrote:

> Hi,
> I did an upgrade from debian 7 wheezy to debian 8 jessie on the master of a
> cluster (1 master + 8 nodes). It seemed all went well. Then I rebooted the
> machine and the problems began. I can't boot the master anymore returning
> an error:
> *Running scripts/local-block*
> *Unable to find LVM volume*

> *modprobe: module ehci-pci not found in modules.dep*


> Truly, it boots correctly with the old kernel 3.2, but not with 3.16.
> In the kernel 3.16 case, moreover, when the initramfs prompt is shown, it
> seems not to load the usb keyboard so i'm truly able to do anything.

This sounds like the initramfs doesn't have the appropriate modules
built into it.

I suspect that your /etc/initramfs-tools/initramfs.conf has MODULES=dep.
You should try changing that to MODULES=most; and then rebuild the
initramfs using something like:

update-initramfs -vu;

This should provide information on the modules that are being added to
the initramfs, which should include the lvm modules and the ehci
modules. [The missing ehci/ohci modules are likely what is causing your
USB keyboard to not work.]

Don Armstrong                      https://www.donarmstrong.com

The major difference between a thing that might go wrong and a thing
that cannot possibly go wrong is that when a thing that cannot
possibly go wrong goes wrong it usually turns out to be impossible to
get at or repair.
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