On 30.11.20 21:10, Mark Post wrote: > On 11/30/20 1:16 PM, Alan Haff wrote: >> I have a number of Linux guests running under z/VM. I'd like to move some of >> them to a KVM host running in another LPAR. Naively I tried DDRing a guest's >> disks to new volumes and IPLing off of the new volumes. No luck, the virtio >> modules aren't available in the guest so it can't see any DASD. >> >> Has someone put together a recipe for moving a guest from z/VM to KVM? Or am >> I heading down a dead end? > > I'm not aware of one, but I wouldn't call it a dead end, either. As a > first step, I would rebuild the initrd with whatever parameters are > needed to include the virtio drivers, then try again. I have to think > that /etc/fstab entries would need to be looked at as well.
Look at the virtualization cookbook 5 from the redbooks. http://www.redbooks.ibm.com/abstracts/sg248463.html?Open chapter 8.7 contains information how to configure a system as such that it can be moved forth and back between LPAR and KVM. That should then also be possible with z/VM. If done right that should allow you to move the guest forth and back between KVM and z/VM. Basic idea: make sure the initrd has classic (DASD) drivers and the virtio-blk driver and then use driver independent names for the partitions. CC Viktor, do we still have our presentation flying around somewhere? ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www2.marist.edu/htbin/wlvindex?LINUX-390
