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Sidewinder G2 6.1.2 Administration Guide - Glossary of Technical ...

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8 [Conditional] If needed, change partitioning information.<br />

Appendix F: Basic Troubleshooting<br />

Restoring system files<br />

During the boot process the Default Disk Allocation screen displays the<br />

default values. If you need to modify the values, tab to Configure and then<br />

press Enter.<br />

Note: You may need to modify these values if you have installed new hardware.<br />

Otherwise, it is recommended that you use either the default values or whatever<br />

values that were set when the system backup was performed.<br />

9 Insert the DAT and wait for the tape to reach its load-point. Press Enter to<br />

initiate the restore process. The restore process will repartition the drives<br />

and reload all <strong>of</strong> the system files from the tape.<br />

10 When the restore is finished, the following message will appear:<br />

File restore complete.<br />

11 Remove the DAT and CD-ROM from their respective drives.<br />

12 Press Enter to reboot. The system then reboots to the Administrative<br />

kernel.<br />

13 If needed, restore any incremental backups. See “Performing an<br />

incremental restore via the do.restore script” on page 643 for information.<br />

14 Perform a new full system (level 0) backup. See “Performing a full system<br />

backup (level0)” on page 638.<br />

Important: Do this even if you have not restored any old incremental backups.<br />

Performing a new level 0 backup might seem unnecessary at this point, but it<br />

must be done in order for future incremental backups to remain in sync with the<br />

new file structure. Problems will likely occur if you do a new incremental backup<br />

at a later date and then try to restore the system without having first done a full<br />

system (level 0) backup.<br />

15 When the full system backup is complete, enter the following command to<br />

reboot to the Operational kernel:<br />

shutdown -r now<br />

Performing an incremental restore via the do.restore<br />

script<br />

As noted earlier in this section, the <strong>Sidewinder</strong> <strong>G2</strong> file systems are stored as<br />

separate files on the backup tape. To restore a file system, you can use the<br />

do.restore script in the /etc/backups directory. Incremental restores must be<br />

performed from the Administrative kernel.<br />

643

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