3Com WXR100 3CRWXR10095A manual Upgrading, System Image, Preparing the WX, Switch for, Upgrade

616CHAPTER 27: MANAGING SYSTEM FILES

	The following command restores system-critical files on a switch, from
	archive sysa_bak:
	WX1200# restore system tftp:/10.10.20.9/sysa_bak
	success: received 11908 bytes in 0.150 seconds [ 79386
	bytes/sec]
	success: restore complete.
Upgrading the	To upgrade the WX switch from one MSS version to another, use the
System Image	procedure in this section. For a given release, there may be notes and cautions
	that apply only to that release. Consequently, before upgrading to a new
	software image, you should also consult the release notes for that release.
Preparing the WX	Use the following command to save the configuration. Unsaved changes
Switch for the	will be lost during the upgrade procedure.
Upgrade	save config [filename]
	CAUTION: Save the configuration, then create a backup of your WX switch
	files before you upgrade the switch. 3Com recommends that you make a
	backup of the switch files before you install the upgrade. If an error occurs
	during the upgrade, you can restore your switch to its previous state.
	If the switch is running MSS Version 3.2.2 or later, you can use the
	following command to back up the switch’s files:
	backup system [tftp:/ip-addr/]filename[all critical]
	To restore a switch that has been backed up, use the following command:
	restore system [tftp:/ip-addr/]filename[all critical] [force]
	“Upgrade Scenario” on page 618 shows an example use of the backup
	command. For more information about these commands, see “Backing
	Up and Restoring the System” on page 613.
	If you have made configuration changes but have not saved the changes,
	use the save config command to save the changes, before you back up
	the switch.
	If the switch is running a version of MSS earlier than 3.2.2, use the
	copy tftp command to copy files from the switch onto a TFTP server.