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Bug#610359: d-i rc1 fails on software raid system

Package: installation-reports

Boot method: DVD from external DVD reader with USB connection
Image version: http://cdimage.debian.org/cdimage/squeeze_di_rc1/amd64/iso-cd/debian-sq-di-rc1-amd64-netinst.iso
Date: 17 January 2011

Machine: DELL OptiPlex 780 SF
Processor: Intel E7500
Memory: 2Gb

Output of lspci -knn (or lspci -nn):

Base System Installation Checklist:
[O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it

Initial boot:           [O]
Detect network card:    [O]
Configure network:      [O]
Detect CD:              [ ]
Load installer modules: [O]
Detect hard drives:     [O]
Partition hard drives:  [O]
Install base system:    [O]
Clock/timezone setup:   [O]
User/password setup:    [O]
Install tasks:          [O]
Install boot loader:    [E]
Overall install:        [E]


this machine have two sata disks connected to a intel software raid
controller. The two disks have been connfigured as one logical disk in
mirror using the controller BIOS.

The linux install has been started with "dmraid=true" option and the
logical disk has been correctly detected and configured.

When the bootloaded has to be installed, grub-pc was selected and
proposed to install itself on mbr since no other OSes were detected. I
pressed OK and the grub installation failed with a message like 'cannot
setup grub on /dev/sda'. This is correct since /dev/sda should not be
used because it is part of the /dev/mapper/isw_XXXXXXX_ARRAY.

Reading the documentation I found that grub2 does not support this kind
of raid controller, nor lilo does. So, it seems Debian cannot be
installed at all on such system.


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