see: configure_serial_console_access

To install your bootloader on both parts of a software RAID 1 the following steps have to be performed (after every kernelupdate). Our RAID consists of 2 SATA drives (sda1 and sdb1):

Start grub:

grub

    GNU GRUB  version 0.97  (640K lower / 3072K upper memory)

       [ Minimal BASH-like line editing is supported.   For
         the   first   word,  TAB  lists  possible  command
         completions.  Anywhere else TAB lists the possible
         completions of a device/filename. ]

grub>

enter the following commands:

# select sdb1 as the target:
 root (hd1,0)

# write bootloader:
 setup (hd1)