A month ago or so I wanted to make sure I still had access to my Linux box while away from home. I did NOT take the time to properly harden the box and got some malware installed into the init scripts and crontabs. I since removed the default gateway so it is unable to send dDOS attacks outbound. Unfortunately I am also running mdadm on the box. I have the OS (/) on md0 and all of my files on md1 (/home). I want to blow away the OS partition but am worried it may effect my /home (md1) partition. What is the best way to fix this issue (without losing my /home partition)?
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There's no reason to think that the removal of one (RAID) block device will affect another. You can safely remove the system volume and keep the one with /home on it.
It's possible that the new Ubuntu installation won't pick up the old RAID configuration by itself in which case you need to do that manually after installation.
David Foerster
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