Re: [Xen-users] Ramdisk Parameter in config file

[Stephen Yum <steveyum@xxxxxxxxxxxxxx>]

Ramdisk is important if you have some critical kernel components built as modules, as opposed to statically built into the kernel.

If you're exporting disk partitions from dom0 to domU's as SCSI drives, you should have the necessary SCSI components turned on in the guest kernel and have them available as modules or built into the kernel. If you have them as modules, you should run depmod, do mkinitrd and have ramdisk settings in your guest config file for it to recognize the root drive.

I think it's commented out (at least in mine) because it's assuming you're exporting partitions as hda[012] (IDE drives). Are you exporting it as SCSI?

S

On May 25, 2006, at 3:43 PM, Bernard Golden wrote:

I was having problems bringing up a guest OS, getting a "root not found" error. The config file, copied from the example file, had the ramdisk setting commented out. I uncommented it and the guest OS came up just fine.

 

Ramdisk is not really described, so my question is "what function does it perform?" If it's critical to getting guests up and running, why is it commented out in the example, which would seem to imply it's not critical to bringing guest OS systems up?

 

Bernard Golden

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