lxc-update-config
lxc-update-config(1) lxc-update-config(1)
NAME
lxc-update-config - update a legacy pre LXC 2.1 configuration fileSYNOPSIS
lxc-update-config {-c config}DESCRIPTION
lxc-update-config detects any legacy configuration keys in the given config file and will replace them with the appropriate new configuration keys.
lxc-update-config will first create a backup of the old config file in the same directory and name it config.backup and then update the original config file in place. In case the up‐
date fails to apply or leads to an invalid config file that cannot be used to start a container users can either compare config with config.backup and try to manually repair any the
invalid configuration keys or simply rollback to the legacy configuration file by copying config.backup to config.
Any failures for lxc-update-config to generate a useable config file are a bug and should be reported upstream.OPTIONS
-c, --config
Path to the configuration file to update.
-h, --helpSEE ALSO
lxc(7), lxc-create(1), lxc-copy(1), lxc-destroy(1), lxc-start(1), lxc-stop(1), lxc-execute(1), lxc-console(1), lxc-monitor(1), lxc-wait(1), lxc-cgroup(1), lxc-ls(1), lxc-info(1), lxc-
freeze(1), lxc-unfreeze(1), lxc-attach(1), lxc.conf(5)
2025-07-30 lxc-update-config(1)