unix:virtualization:virtlib:migrate
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
unix:virtualization:virtlib:migrate [2022/05/19 01:40] – rodolico | unix:virtualization:virtlib:migrate [2022/05/22 21:22] (current) – rodolico | ||
---|---|---|---|
Line 82: | Line 82: | ||
<code bash>ssh hostname ' | <code bash>ssh hostname ' | ||
If something breaks, fix this before you go further. | If something breaks, fix this before you go further. | ||
+ | |||
+ | Finally, test the virsh connection between machines. Assuming virtlib running on both machines and ssh access, this should work: <code bash> | ||
+ | |||
+ | |||
+ | ===== Notes ===== | ||
+ | |||
+ | * Make sure you have the same bridges defined on all hypervisors, | ||
+ | * Make sure your paths are all the same on all hypervisors: | ||
+ | * There are several GUI and WebUI tools to do the migration, but the only one I've used (virt-manager) has some serious issues. | ||
+ | * It assumes you want to copy your block devices to the target, and fails when it tries to do it. However, I was able to shut down on one machine and start up on the second, once I had used --persistent one time to copy the config. | ||
+ | * I have some machines with the disks encrypted. The message to enter my passphrase doesn' | ||
+ | |||
+ | ===== Test the migration ===== | ||
+ | |||
+ | Ok, you know ssh works, and you have the correct version of cpu definition on all machines, and you have checked the configuration. Now it is time to test. On the source machine: | ||
+ | <code bash> | ||
+ | Replace // | ||
+ | |||
+ | * **--live** simply says "do this without shutting the virtual down | ||
+ | * **--persistent** copies the virtual' | ||
+ | * **--verbose** lets you see what is going on, which I like | ||
+ | * **qemu+ssh: | ||
+ | * **system** gives you access to the system on the target, allowing migrate to start the machine | ||
+ | |||
+ | There are a lot of additional things you can do with migrate. From the command prompt, <code bash>man virsh</ | ||
+ | |||
+ | ===== Links ===== | ||
+ | |||
+ | * https:// | ||
+ | * https:// |
unix/virtualization/virtlib/migrate.1652942420.txt.gz · Last modified: 2022/05/19 01:40 by rodolico