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Top Forums UNIX for Dummies Questions & Answers Can I ghost a Unix Box ? with another Post 7288 by loadc on Monday 24th of September 2001 10:54:36 AM
Old 09-24-2001
ghost...no/dd...yes!!

Okay-

This is an old thread, so hopefully this helps SOMEONE...

well, ghosting is not a totally foreign concept to unix, it's just a bit "different". In unix, you have some options of doing this, take a tape backup to a device via "tar", and untar to the new disk, this implies that you have a running system on the new box. Or, this is my favorite, pull the drive out of the system you want to ghost "to", put it into the other system, now you have the option of doing *fsdumps of the slices of the "from" disk to the new disk, or, if they are IDENTICAL disks (VERY IMPORTANT!!!, do NOT do this between non-identical disks, as the disk labels go and everything in a brute force dd, you can finesse this and take just the tracks outside of the label, etc.), use the "dd" command to do an exact copy of one disk to the other. This can be dangerous, I watched someone wipeout his entire system, by "dd"-ing a blank disk to his running system, lesson here is: make sure you get the input and output devices straight. And you will be dealing with devices at this level, not filesystems, so you are writing to and from device files, not copying file systems. So keep in mind how much damage can be done to your system by doing this wrong.



Hope this helps someone,


loadc
 

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