Reverting to the backup boot disk group after an unsuccessful upgrade


Reverting to the backup boot disk group after an unsuccessful upgrade
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Perform this procedure if your upgrade was unsuccessful and you split the mirrored boot disk to back it up during upgrade. You can revert to the backup that you created when you upgraded.

See Performing a rolling upgrade using the installer.

To revert the backup boot disk group after an unsuccessful upgrade

To determine the boot disk groups, look for the rootvol volume in the output of the vxprint command.
```
# vxprint
```
Use the vxdg command to find the boot disk group where you are currently booted.
```
# vxdg bootdg
```
Boot the operating system from the backup boot disk group.
Join the original boot disk group to the backup disk group.
```
# /etc/vx/bin/vxrootadm -Y join original_bootdg
```
where the -Y option indicates a silent operation, and original_bootdg is the boot disk group that you no longer need.

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Re-joining the backup boot disk group into the current disk group	Home	Section VIII. Post-installation tasks