mirror of
https://github.com/containers/podman.git
synced 2025-06-17 15:08:08 +08:00
feba94eb95
This is a horrible hack to work around issues with Fedora 31, but other distros might need it to, so we'll move it upstream. I do not recommend this functionality for general use, and the manpages and other documentation will reflect this. But for some upgrade cases, it will be the only thing that allows for a working system. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
43 lines
1.6 KiB
Markdown
43 lines
1.6 KiB
Markdown
% podman-system-migrate(1)
|
|
|
|
## NAME
|
|
podman\-system\-migrate - Migrate existing containers to a new podman version
|
|
|
|
## SYNOPSIS
|
|
** podman system migrate**
|
|
|
|
## DESCRIPTION
|
|
** podman system migrate** migrates containers to the latest podman version.
|
|
|
|
**podman system migrate** takes care of migrating existing containers to the latest version of podman if any change is necessary.
|
|
|
|
"Rootless Podman uses a pause process to keep the unprivileged
|
|
namespaces alive. This prevents any change to the `/etc/subuid` and
|
|
`/etc/subgid` files from being propagated to the rootless containers
|
|
while the pause process is running.
|
|
|
|
For these changes to be propagated, it is necessary to first stop all
|
|
running containers associated with the user and to also stop the pause
|
|
process and delete its pid file. Instead of doing it manually, `podman
|
|
system migrate` can be used to stop both the running containers and the
|
|
pause process. The `/etc/subuid` and `/etc/subgid` files can then be
|
|
edited or changed with usermod to recreate the user namespace with the
|
|
newly configured mappings.
|
|
|
|
## OPTIONS
|
|
|
|
**--new-runtime**=*runtime*
|
|
|
|
Set a new OCI runtime for all containers.
|
|
This can be used after a system upgrade which changes the default OCI runtime to move all containers to the new runtime.
|
|
There are no guarantees that the containers will continue to work under the new runtime, as some runtimes support differing options and configurations.
|
|
|
|
## SYNOPSIS
|
|
**podman system migrate**
|
|
|
|
## SEE ALSO
|
|
`podman(1)`, `libpod.conf(5)`, `usermod(8)`
|
|
|
|
## HISTORY
|
|
April 2019, Originally compiled by Giuseppe Scrivano (gscrivan at redhat dot com)
|