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Hello, I started live migration job for a guest with the following command: virsh migrate --live --domain my-guest --verbose --persistent --copy-storage-all --desturi qemu+ssh://root@my-otherhost/system Guest system disk cache mode is none: <disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='/opt/datastore/bulutkare-1118.img'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
after live migration completed, filesystem blocked write operations.root@my-guest:~/tmp# touch hello touch: cannot touch ‘hello’: Read-only file system What can be the reason? What is the best of migrating a VM to a target machine? Additional info: Guest operating system is Ubuntu 14.04 x64 Source/Target Host operating system is Ubuntu 15.04 x64 Guest file system is ext4 + swap Source/Target Host file system is XFS Source/Target Qemu version 1.2.2 Source/Target libvirt 1.2.12 This is from target libvirt log. It can be important: /build/qemu-Bjjgxn/qemu-2.2+dfsg/nbd.c:nbd_co_receive_request():L1146: reading from socket failed |
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