3Com 6200 Hardware And Software Users Manual

Also see for 3CR13500: Software install guide

Contents

3Com 6200 Hardware And Software Users Manual Manual pdf 63 page image

3COM Security Switch 6200 Hardware and Software Users Guide 6-3Upgrading the System Software Using the Safe Upgradeand Rollback FeaturesUpgradingfrom Version2.1 andGreaterNewer versions of Version 2.1 and greater allow you to do a full copy of theRunning Partition (RP) to an Upgrade Partition (UP) before actuallyupgrading your system software.To do this:1. Make sure you are connected to the console.2. Reboot your system into single user mode. To do this, at the rootprompt, enter:init 13. Once the system boots into single user prompt, enter the following:/usr/os/sbin/cos-copy-dist -p 2This copies your entire RP disk contents into the UP. This is a totaldisk copy and everything on the RP is copied to UP, including theapplication configurations.4. Once the copy is complete, enter the following:/usr/os/bin/cos_toggle other5. Reboot your system. Your system is booted into the UP.6. Upgrade your system software or applications, as needed.7. Reboot if necessary.If all upgrades are working normally, you are now on the UP (partition set 2).If, however, your upgrades fail, your system fails to boot up, or crashes, thenyou must reboot and when you get the bootup choices for the kernel underGrub, select the Chains option. Alternatively, if you are able to get to the rootprompt but still do not want to upgrade, enter the following:/usr/os/bin/cos_toggle otherNOTE: To view the current partition, enter the following:/usr/os/bin/cos_toggleThe default value is “/vmlinuz-2.4.18-5” and indicates your original RP.To list possible selections, enter the following:/usr/os/bin/cos_toggle -lThe “other” value indicates the second part of the disk, which is your UP.Then reboot system.To go back to the original partition (RP) that was working properly, rebootthe system.