PVE（Proxmox VE）集群里添加了一台新主机pve1，存储系统使用ceph；原有主机（pve2、3）使用thin lvm。当把pve3 的thin lvm 上的虚拟机迁移到pve1 ceph存储上时，报如下错误：
2026-04-07 16:37:33 starting migration of VM 117 to node 'pve1' (192.168.110.8) 2026-04-07 16:37:33 found local disk 'thin-lvm:base-117-disk-0' (attached) 2026-04-07 16:37:33 copying local disk images 2026-04-07 16:37:35 lvcreate 'pve/vm-117-disk-0' error: Pool thin-lvm not found in Volume group pve. 2026-04-07 16:37:35 command 'dd 'if=/dev/pve/base-117-disk-0' 'bs=64k' 'status=progress'' failed: got signal 13 2026-04-07 16:37:35 ERROR: storage migration for 'thin-lvm:base-117-disk-0' to storage 'thin-lvm' failed - command 'set -o pipefail && pvesm export thin-lvm:base-117-disk-0 raw+size - -with-snapshots 0 | /usr/bin/ssh -e none -o 'BatchMode=yes' -o 'HostKeyAlias=pve1' -o 'UserKnownHostsFile=/etc/pve/nodes/pve1/ssh_known_hosts' -o 'GlobalKnownHostsFile=none' root@192.168.110.8 -- pvesm import thin-lvm:base-117-disk-0 raw+size - -with-snapshots 0 -allow-rename 1' failed: exit code 255 2026-04-07 16:37:35 aborting phase 1 - cleanup resources 2026-04-07 16:37:35 ERROR: migration aborted (duration 00:00:02): storage migration for 'thin-lvm:base-117-disk-0' to storage 'thin-lvm' failed - command 'set -o pipefail && pvesm export thin-lvm:base-117-disk-0 raw+size - -with-snapshots 0 | /usr/bin/ssh -e none -o 'BatchMode=yes' -o 'HostKeyAlias=pve1' -o 'UserKnownHostsFile=/etc/pve/nodes/pve1/ssh_known_hosts' -o 'GlobalKnownHostsFile=none' root@192.168.110.8 -- pvesm import thin-lvm:base-117-disk-0 raw+size - -with-snapshots 0 -allow-rename 1' failed: exit code 255 TASK ERROR: migration aborted
虚拟机无法迁移。后经测试，找到一种迁移的办法：现把虚拟机关机，之后将虚拟机的每个虚拟硬盘迁移到ceph，然后该虚拟机回多出几块未使用的硬盘，删除。最后这迁移虚拟机即可。
特此记录备查。
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