This section describes some basic troubleshooting techniques to use when backing up and restoring data.
You back up a file system, and the root (/) file
system fills up. Nothing is written to the media, and the ufsdump command
prompts you to insert the second volume of media.
|
Reason Error Occurred |
How to Fix the Problem |
|---|---|
|
If you used an invalid destination device name with the |
Use the ls -tl command in the |
You can only use the ufsrestore command to restore files backed up with the ufsdump command. If you back up with the tar command, restore with the tar command. If you use the ufsrestore command to restore a tape that was written with another command, an error message tells you that the tape is not in ufsdump format.
It is easy to restore files to the wrong location. Because the ufsdump command always copies files with full path names relative to the root of the file system, you should usually change to the root directory of the file system before running the ufsrestore command. If you change to a lower-level directory, after you restore the files you will see a complete file tree created under that directory.
When you use the interactive command, a ufsrestore>
prompt
is displayed, as shown in this example:
# ufsrestore ivf /dev/rmt/0
Verify volume and initialize maps
Media block size is 126
Dump date: Fri Jan 30 10:13:46 2004
Dumped from: the epoch
Level 0 dump of /export/home on starbug:/dev/dsk/c0t0d0s7
Label: none
Extract directories from tape
Initialize symbol table.
ufsrestore >
At the ufsrestore>
prompt, you can use the commands
listed on Chapter 28, UFS Backup and Restore Commands (Reference), in System Administration Guide: Devices and File Systems
to
find files, create a list of files to be restored, and restore them.