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To save the configuration:
# /etc/scripts/backup-usb save config-20May
To check if the backup was saved correctly:
# /etc/scripts/backup-usb list
If this command does not display "* config-20May" then there was an error saving the configuration.
The set-default command takes an input file as an argument and renames it to "default.opg". This default configuration remains stored on the USB
disk. The next time you want to load the default config, it will be sourced from the new default.opg file. To set a config file as the default:
# /etc/scripts/backup-usb set-default config-20May
To load this default:
# /etc/scripts/backup-usb load-default
To load any other config file:
# /etc/scripts/backup-usb load {filename}
The /etc/scripts/backup-usb script can be executed directly with various COMMANDS or called from other custom scripts you may create. We
recommend that you do not customize the /etc/scripts/backup-usb script itself at all.
If you do not have a USB port on your console server, you can back up the configuration to an off-box file. Before backing up you need to arrange a
way to transfer the backup off-box. This could be via an NFS share, a Samba (Windows) share to USB storage, or copied off-box via the network. If
backing up directly to off-box storage, make sure it is mounted.
/tmp is not a good location for the backup except as a temporary location before transferring it off-box. The /tmp directory will not survive a reboot.
The /etc/config directory is not a good place either, because it will not survive a restore.
Backup and restore should be done by the root user to make sure correct file permissions are set. The config command is used to create a backup
tarball:
config -e <Output File>
The tarball will be saved to the indicated location. It will contain the contents of the /etc/config/ directory in an uncompressed and unencrypted
form.
Example nfs storage:
# mount -t nfs 192.168.0.2:/backups /mnt # config -e /mnt/les4108.config # umount/mnt/
Example transfer off-box via scp:
# config -e /tmp/les4108.config
# scp /tmp/les4108.config 192.168.0.2:/backups
The config command is also used to restore a backup:
config -i <Input File>
This will extract the contents of the previously created backup to /tmp, and then synchronize the /etc/config directory with the copy in /tmp.
One problem that can crop up here is that there is not enough room in /tmp to extract files to. The following command will temporarily increase the
size of /tmp:
mount -t tmpfs -o remount,size=2048k tmpfs /var
If restoring to either a new unit or one that has been factory defaulted, make sure that the process generating SSH keys either stops or completes
before restoring configuration. If this is not done, then a mix of old and new keys may be put in place. SSH uses these keys to avoid man-in-the-
middle attacks. Logging in may be disrupted.