How to fix some kind of installation troubles SAS/IR6 in Debian

Different kind of installation troubles

Put in GRUB

rootdelay=60

So big partition

  1. create a grubbios
  2. create a 200Mb boot

Readonly isw raid:

dmraid --stop
[root@localhost ~]# dmraid -r -E /dev/sdc
Do you really want to erase
“pdc” ondisk metadata on /dev/sdc ? [y/n] :y

or

mdadm –zero-superblock /dev/sdx
http://retsepts.blogspot.sg/2012/02/mdadm.html

If GRUB install failed:

replace a /dev/mapper to appropriate /dev/mapper/isw_cchibbaeag_Volume0