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Old 04-20-2005, 05:10 PM   #1
Registered: Jan 2005
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Backing Up RHEL 3.0


Is there a way to backup and restore the Linux 'system state' as in Windows XP?

Old 04-20-2005, 06:02 PM   #2
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If you have Linux installed with one of the journaled filesystems (ext3, ReiserFS, JFS, etc), then the journal is updated at regular intervals. If something unexpected happens, such as sudden loss of power (as happened to me earlier this evening during a thunderstorm, and my UPS decided it didn't want to keep my computer running long enough for me to shut down normally), then on re-boot, the system should do 2 things: a) recognize that an abnormal shutdown occured; b) query the journal for the last normal state and boot into that state (which mine did when I rebooted after power was restored). In fact, when I re-established my internet connection and opened my browser, the webpages I was browsing at the time of power loss were restored also.
Old 04-25-2005, 05:13 PM   #3
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Thanks for the info. I guess I'm just trying to have some redundancy equivalent to Windows System Restore, or Automated System Recovery...where system state/registry/user data can be archived and used to restore from if needed. It sounds like since we are using ext3, some of this redundancy is already built in....
Old 04-25-2005, 06:25 PM   #4
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Is there anything to create a disk image of a linux install if my system should suddenly go tits up (it keeps happening when i 'explore') it would be great if i could just boot up something and load the disk image and restore everything...


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