Comment 5 for bug 672759

I've run into the same issue with a lucid guest running on XCP. Everything I can find says that the first block device *should* be xvda, but mine is sda, and that causes the open-iscsi to sysfs error.

Is there a way to force xen or this udev to move the block device out of the way?

# udevadm info --query=all --name=/dev/sda
P: /devices/vbd-51712/block/sda
N: sda
S: block/202:0
S: disk/by-path/xen-vbd-51712
E: UDEV_LOG=3
E: DEVPATH=/devices/vbd-51712/block/sda
E: SUBSYSTEM=block
E: DEVNAME=sda
E: ID_PATH=xen-vbd-51712
E: ID_PART_TABLE_TYPE=dos
E: MAJOR=202
E: MINOR=0
E: DEVTYPE=disk
E: DEVLINKS=/dev/block/202:0 /dev/disk/by-path/xen-vbd-51712