On Thu, Jun 02, Wei Liu wrote: > On Wed, Jun 01, 2016 at 11:40:51PM +0200, Olaf Hering wrote: > > tool_ver vdev_str qemu format usable bootable > > xen-4.5 xvd qmain qcow2 yes SUSE:no, staging:yes > What does "staging" mean?
That should have been staging-4.5. Some change between our 4.5.1 and 4.5.2 based toolstack broke xvd booting. > > xen-4.6 xvd qmain raw yes yes > > xen-4.6 xvd qmain qcow2 yes yes > > xen-4.7 xvd qmain raw yes no > > xen-4.7 xvd qmain qcow2 yes no > So the last column only apply to xenlinux kernel? The relevant row is 'bootable', thats where the regression is. It means 'BIOS finds a disk, can access it and run bootloader'. In my testing the BIOS did not see a disk, just the 'cdrom' had in domU.cfg as well. 'usable' means a PV driver may actually access the given device. This is always the case, except qemu-trad has no qcow2 support. > I expect pvops to be all "yes" because it doesn't use vdev_str. I also > expect freebsd to work because it parses vbd number and translates that > to freebsd-speak device identifier. This list has no column 'makes use of vdev_str' because the list does not describe domU OS behaviour. ;-) See my other mail regarding domU os. If we leave xen-4.7 as is then domU.cfg has to be changed from 'xvd' to 'hd' to allow BIOS boot again. This will change things for (at least) xenlinux based kernels because the kernel device name change. I think this needs adjustments to /boot/grub/device.map and /etc/default/grub_installdevice. The latter is an odd SUSE thing, describing where grub2 should write things, its likely similar to device.map. fstab and root= can be changed to use on-disk identifiers like UUID or LABEL to work with either xvd or hd. LVM or raid might be unaffected. Eventually there are more places which need adjustment, like autoinstall profiles. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel