Dne 30.6.2016 v 11:10 Scott Hazelhurst napsal(a):
Dear all I sent the email below about three weeks ago. Today I upgraded another machine — I had exactly the same thing happen and I appear to have lost some LVM volumes Hmm. At least I know it’s a problem and can backup the LVM volumes before doing upgrade but it’s hugely annoying. Scott Dear all I upgraded a server from Ubuntu 15.10 to 16.04. All went smoothly and the machine appeared in good state. However, there seems to be a problem with LVM. I have one volume group with several logical volumes. lvs showed all the logical volumes but only 2 of the 7 volumes were active (and appearing in /dev/mapper). I activated the other volumes using lvchange -ay and then I can see all logical volumes in /dev/mapper.
Hi Upstream lvm2 has a bad message for you - your complains should be stricly targeted to Ubuntu/Debian lvm2 maintainers - so please open bug for them. Solving booting sequence is very 'distro-specific' topic completely unrelated to lvm2 - as you say - when you manually use 'lvchange -ay' everything works - thus your booting sequence missed to activate volumes....
However, there appear to a problem with some of the LVs which are used as the images for virtual machines (qemu-kvm). The VMs don't boot. Moreover, previously I could mount the sub-partitions of the LV by doing a kpartx -a on the logical volume. That no longer works (e.g. kpartx -l /dev/mapper/cloud-VNAME shows nothing, while it used to show the 3 partitions of the underlying virtual machine).
Again - likely distro-specific case. kpartx has nothing in common with....
One of the LVs didn't have a problem -- this just contained a data disk. This particular server is not a serious problem for me because I can clone the VM from elsewhere, but I am about to start an upgrade of all our other machines and it will be very time-consuming if I have to do this with each machine. Does anyone have any ideas about what went wrong? How the situation could be remedied
Yep - untuned/untested release.... Regards Zdenek _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
