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Sidewinder G2 6.1.1 Administration Guide - Glossary of Technical ...

Sidewinder G2 6.1.1 Administration Guide - Glossary of Technical ...

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Restoring system files<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<br />

stored as separate files on the backup tape. To restore a file system,<br />

you can use the do.restore script in the /etc/backups directory.<br />

Incremental restores must be performed from the Administrative<br />

kernel.<br />

Follow these steps to restore files on the <strong>Sidewinder</strong> <strong>G2</strong>:<br />

Caution: If you are restoring the root (/) file system, DO NOT restore the /shlib directory,<br />

which contains shared libraries. If you restore this directory, the system will hang and you<br />

will not be able to reboot it. To restore this file system, first use the add command to restore<br />

all files. Then use the delete command to delete the /shlib directory from the list <strong>of</strong> files.<br />

Extract the files as usual.<br />

1. Attach a keyboard and monitor directly to your <strong>Sidewinder</strong> <strong>G2</strong> and<br />

reboot.<br />

Note: If your system has multiple keyboard/monitor connection ports, you must<br />

attach the keyboard and monitor into the same keyboard/monitor connection port<br />

pair (that is, attach both items either to the front connection ports or the back<br />

connection ports).<br />

2. Reboot the system to the Administrative kernel by entering the<br />

following command:<br />

shutdown -g now<br />

3. Press Enter when asked whether to check and mount all file systems.<br />

The system prompt will appear.<br />

Note: If you have enabled authentication for the administrative kernel, you will be<br />

prompted to log in before the system prompt appears.<br />

4. Insert your backup DAT into the tape drive. Use the DAT on which you<br />

backed up your files.<br />

5. Type df to display the file system on the current <strong>Sidewinder</strong> <strong>G2</strong>.<br />

Important: The file system on the current <strong>Sidewinder</strong> <strong>G2</strong> may not reflect the order<br />

in which the file systems were backed up on a back up tape!<br />

Basic Troubleshooting F-11

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