you probably have to boot from the cd using rescue mode as well:
at the cd boot prompt:
linux rescue
this will release the "busy" devices as you can unmount them as you go...
P.
Nigel kendrick wrote:
I have a CentOS 4.2 system that was set up VERY quickly following the demise of its former life as a CentOS 3 server - you don't want the full story, but it had to be done quickly to get a company up and working following a slight disaster involving an electrician, a portable appliance safety tester and a pulled power cable - anyway, here's where I am at...
Everything is running fine but I now want to mirror the root partition (/dev/hda3). I have read quite a few set of notes on the theory but since they contain conflicting advice I am hoping someone here can set me straight
- here's what IO want to do:
hda3 and hde3 become a mirrored pair (/dev/md0) and this is mounted at boot time as /
Is it as simple as a quick mdadm command and then an edit of /etc/inittab??
If I try and use mdadm right now I get complaints that /dev/hda3 is busy (fair enough) so I guess I need to be in less than 'full steam ahead' mode to make the change - over to you....
Thanks
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