update-node

Usage: update-node

[OPTION]... $<$-run$>$

This script updates all files and directories in /ram that have changed in the configuration and starts/stops any services if necessary.

Options:

-r,	-run	This argument must be given to run the script
-c,	-clean	Removes files/directories in /ram not in the config
-d,	-dryrun	Shows updates without making them
-cf,	-config=FILE	Specify alternate configuration file
-q,	-quiet	Suppress output

The update-node script performs a very similar function as the boot-time script, rc.preinit. It updates all the files and directories configured in /etc/sysimage.conf that reside in the oneSIS RAM disk mounted on /ram. It will also resize the RAM disk if necessary.

If any new RAM* or LINK* directives are added to the configuration, running update-node on all nodes will ensure that their RAM disk is consistent with the new configuration.

# ssh node1 update-node -run

By default, if any directives are removed from the configuration, the corresponding files and directories are NOT deleted from the RAM disk.

To remove files and directories in /ram that are no longer specified in the config, the -clean option must be given to update-node. However, it is recommended to clean files no longer in the config without destroying useful data that may be stored in a RAMDIR or LINKDIR. To protect such directories from having useful data destroyed by an `update-node -clean' operation, a -p flag can be added to the configuration directive:

LINKDIR /var/lock/subsys -p

After protecting such directories, `update-node -r -clean' can safely be run on all nodes as often as necessary to clean up the oneSIS RAM disk and keep the nodes consistent with their configuration.

# ssh node1 update-node -r -c