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I have a problem with an HP ProLiant Microserver that won't boot with a Slackware 12 system using Linux 2.6.21.5

If I boot a recent version of System Rescue CD, the disk is recognized.

So my question is: how can I find which module is the System Rescue CD kernel using to access the hard disk?

Edit:

When trying to boot with Slackware, I get the dreadful message

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

The filesystem module (ext3) is loaded, so it can only be a controller driver issue, as far as I know.

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In 2.6.21, the module for HP SmartArrays is 'cciss'. In more recent kernel versions they've been moving things over to a newer 'hpsa' driver. To find out what modules are driving which hardware, the '

lspci -k

command will display which modules are associated with which devices.

03:00.0 RAID bus controller: Hewlett-Packard Company Smart Array G6 controllers (rev 01)
Subsystem: Hewlett-Packard Company Smart Array P410i
Kernel driver in use: cciss
  • Hi, this might solve the non-booting server but it's not the answer to the original question. I know that I mixed 2 questions in 1 and it's a bit messy. Should I ask another question for the non-booting server? – Andrea Spadaccini Feb 2 '11 at 19:26
  • Hi, the driver was not cciss but ahci, as the ProLiant MicroServer does not have the HP Smart Array Controller. Thanks however for the help! – Andrea Spadaccini Feb 2 '11 at 19:43
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After some more research, I found that the kernel module used by a given subsystem is obtained by lspci -k.

In this way I found that the module required by the controller is ahci, and I'm going to try and see if this works with my kernel.

  • It worked, the server booted flawlessly once I compiled statically ahci and set to AHCI the disk setting in the BIOS. – Andrea Spadaccini Feb 2 '11 at 19:44

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