Can't find any instructions on how to do a RHEL 6.3 installation on 2 RAID1 drives

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It would seem to be fairly common situtaion. install RHEL 6.3 on a server that has 2 identical drives in a RAID1 mirror.

 

just can't seem to find any examples, howtos or directions anywhere...

 

i do see that the LVM has support for RAID1 vs Mirror... 

 

this morning I tried to use the custom partition program in the Graphical installer to create a /boot and a / partition both as ext4 formatted MD devices.

/dev/sda1 200M software raid partition

/dev/sdb1 200M software raid partition

/dev/sda2 405000M software raid partition

/dev/sdb2 405000M software raid partition

 

 

MD0   /boot   200M    /dev/sda1  /dev/sda2             EXT4

MD1   /          405000M /dev/sda2  /dev/sda2          EXT4

 

when I selected Next to continue the install 

I got the error message  /boot/efi not configured.

 

so i shrunk the / partition and addeda 200M  MD1 as /boot/efi       and MD2 as the new slightly smaller / partition

still got the same message.

 

any suggestions?

 

thanks

 

mark

 

 

ms

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