problem with swap and upgrade to 4 from 3.3

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Dear All,

I've tried to upgrade a Centos 3.3 installation to 4.0 using YUM and 
some instructions I found in a thread on the Centos Forum.

The initial problem I had with Python 2.3/2.2 has been resolved, and now 
I am trying to upgrade the kernel to 2.6 prior to the yum upgrade, 
unfortunately it bails out at the end with dependancy erros on Xfree86. 

At this point I decided to use the CDs with a the "upgradeany" option.  
This went fine initally but then bails out with a swap error, this is 
because swap on this machine is on /dev/md2 (a mirrored set) and this 
was not set up at the original install time, as all the other partitions 
were:  when the machine was installed, one of my staff did not set the 
swap up mirrored, so I had to mirror the swap partition manually after 
the original install.  This works fine, but the machine cant enable the 
swap at boot becuase it does this prior to enabling the RAID subsystem, 
so the swap startup fails, but once the machine is up, the swap is 
actually running without any manual intervention.  Its this error, that 
stops anaconda from upgrading the OS from the CDs

I note on other machines I have installed when the swap was mirrored on 
the original install, it still appears to enable swap prior to the RAID 
subsystem, without any errors.  So I guessed this might be a problem 
with the ram disk image, so I created a new one using mkinitrd, but the 
swap still fails at startup, thus preventing me from using the CDs to 
upgrade the box.

I guess I could set the swap back to an unmirrored set, run the upgrade 
from the CDs then mirror it again, but this is not ideal, does anyone 
have any suggestions as to how to fix this little RAID niggle with the 
swap caused by not RAIDing the swap parition originally on install?

Regards

Pete


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