FW: [Xen-users] error accessing cdrom in domU

["Utsav Agarwal" <uagarwal@xxxxxxxxx>]

I was able to solve the problem by enabling the guest to directly access an external usb cdrom device.

Therefore dom0 has control of the internal cdrom device and 3 domains get one usb port each.

 

1) Change /boot/grub/menu.lst in dom0 and reboot

 

title Xen2

    kernel (hd0,4)/xen.gz dom0_mem=417972 physdev_dom0_hide='(00:03.0)(00:03.1)(00:03.2)'

    module (hd0,4)/vmlinuz-2.6.8-24.14-xen

    module (hd0,4)/initrd-2.6.8-24.14-xen

 

2) add pci device line in domU config file:

 

    pci = [ '00,03,00' ]

 

 

Thanks,

 

   

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From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Utsav Agarwal
Sent: Wednesday, July 27, 2005 1:27 PM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] error accessing cdrom in domU

 

The following 2 error messages found in dom0 system log:

 

kernel: hdc: cdrom_read_intr: data underrun (2 blocks)

kernel: end_request: I/O error, dev hdc, sector 64

 

when I try to mount the cdrom from domU

 

 

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From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Utsav Agarwal
Sent: Wednesday, July 27, 2005 11:48 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] cdrom access in domU

 

I am currently having to nfs export cdrom from dom0 to domU and that is cumbersome.

Is there a way to do it at the device level?

 

 

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Utsav Agarwal

Systems Analyst

eXcellence in IS Solutions (X-ISS)

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