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Re: [Qemu-discuss] Kernel panic when booting from SCSI disk

From: Mike Lovell
Subject: Re: [Qemu-discuss] Kernel panic when booting from SCSI disk
Date: Wed, 05 Sep 2012 11:19:44 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120714 Thunderbird/14.0

On 08/08/2012 11:27 PM, Thomas Oberhammer wrote:
Thank you for your effort!

Indeed, QEMU emulates a different SCSI controller (LSI 53c895a) than VMware 
(LSI 53c1030). Unfortunately this needs a different driver (sym53c8xx instead 
of mptbase).

The kernel only includes the driver needed for VMware, but not the one for the 
QEMU controller:

# SCSI low-level drivers
# CONFIG_SCSI_SYM53C8XX_2 is not set
# Fusion MPT device support
Accordingly, there is no sym53c8xx driver included in the initrd.

This is the reason why there are no /dev/sd* devices and the kernel vainly 
waits for a root device.

Thus, my initial question is answered, although the problem stays unsolved. 
Thank you for your time and help!

i was just browsing through the notes about qemu 1.2 that was released earlier this morning and thought back to this email thread. there are a few new scsi controllers that qemu can emulate. http://wiki.qemu.org/ChangeLog/1.2#Device_emulation lists them. none of them are the same one that vmware emulates but maybe one of them is one that the kernel in your system has support for.


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