Cisco Headend System Release 2.7 Installation Guide

Roll Back the DNCS

4038415 Rev A

8 Type y and then press Enter. A message appears that seeks permission to reboot

the server.

9  Type y and then press Enter. The DNCS reboots.
10  Log in to the DNCS as root user.
11  Open an xterm window on the DNCS.
12  Type the following command and press Enter. The system displays the version

of software now running on the DNCS.

pkginfo -l SAIdncs

13 Is the pre-upgrade version of software now running on the DNCS?



If yes, continue the rollback by going to step 14; the DNCS successfully
rebooted with the old software in place.



If no, call Cisco Services for help in determining why the DNCS failed to
reboot with the old software in place.

14 Type the following command and press Enter. A message appears that seeks

confirmation to make bootable the disk device that contains the old software.

/cdrom/cdrom0/s3/backup_restore/make_d500_bootable

15 Type y and then press Enter.

Results:



The make_d500_bootable script reconfigures the mirrored disks on the
DNCS.



A message appears that seeks permission to reboot the server

16  Type y and then press Enter. The DNCS reboots.
17  Log in to the DNCS as root user.
18  Type the following command and press Enter to reboot the server again.

shutdown -y -g0 -i6

19 Log on to the DNCS as root user.
20 Open an xterm window on the DNCS.

Note: You will have root permissions in the xterm window.

21 Type the following command and press Enter.

/cdrom/cdrom0/s3/backup_restore/mirrState -a

Result: The system displays the following message:

WARNING!

Proceeding beyond this point will ATTACH all d7xx submirrors.

Are you certain you want to proceed?

22 Type y and then press Enter. The system enables the disk mirroring functions on

the DNCS.
Note: Depending upon your system configuration, it may take up to an hour for
all of the data to become mirrored.