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[Submitted this query as bug 1237392 on LaunchPad]

All kernel updates on ubuntu since kernel 3.8.0-28 result in an empty screen with no indication of startup, no response to the keyboard. I can only start up using kernel version 3.8.0-27-generic. All following numbers (up to and including 3.8.0-31-generic) do not result in a running system. Also, the display no message at all when starting up (after grub).

I checked the logfiles with "grep -n "Linux version 3.8.0-" *" and found only 27 to be logged, nothing for the other kernels. I am at a loss how to continue.

I am running the most recent version of Ubuntu server.

Does anyone have an idea where I can start looking for the cause of the troubles?

Guus Bonnema.

I have reinstalled Ubuntu with essentially the same result. The installation kernel version 3.8.0-19 works fine. The updated kernel 3.8.0-31 does not work.

The following is the situation:

  1. When I let the machine start on itself I get no output at all.
  2. When I manually tell ubuntu to start the most recent kernel, I get 2 lines:

"Loading Linux-3.8.0-31-generic ..." "Loading initial ramdisk ..."

that's it.

  1. When I manually start the recovery kernel, I get a lot of information. Finally it drops to a terminal and indicates it could not load the LVM partition /dev/mapper/Server-Root. This is why I never see any result in my message or dmesg on disk.

The problem seems to be with the Areca Raid controller. It does a reset of the scsi bus eh until it finally gives up and drops to a terminal. A while after the system goes berserk with messages of non responding scsi bus.

As I cannot reach my harddisk, is there a way to find out what is wrong? Why does everything work fine up to and including kernel 27 and starts to malfunction after that? Did the Areca software change in some way?

Can anyone point me in the right direction?

Guus Bonnema.

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