Installing grub on FakeRaid dualboot setup

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Installing grub on FakeRaid dualboot setup

Postby gadeberg on Mon Feb 04, 2013 3:13 pm

Hi.

I have Huge problems installing grub.
I have tried all guides on the web and nothing seems to work, so now i ask here.

My setup is:
Dualboot Linux mint and Windows 8.
Im using the raid controller on my mobo which is called a fake raid setup. I need this solution for a dual boot.

Raid partition is located at:
/dev/mapper/pdc_daggehfja
which contains the two partitions for windows and linus:
/dev/mapper/pdc_daggehfja1 Linux
/dev/mapper/pdc_daggehfja2 Windows

Upon running sudo fdisk -l i get
#####################################################################
mint / # sudo fdisk -l
sudo: unable to resolve host mint

Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x920f10af

Device Boot Start End Blocks Id System
/dev/sda1 2048 112642047 56320000 83 Linux
/dev/sda2 * 112642048 464842751 176100352 7 HPFS/NTFS/exFAT

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
240 heads, 63 sectors/track, 129201 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00052c18

Device Boot Start End Blocks Id System
/dev/sdb1 2048 1953521663 976759808 7 HPFS/NTFS/exFAT

Disk /dev/sdc: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/sdc doesn't contain a valid partition table

Disk /dev/mapper/pdc_daggehfja: 238.0 GB, 237999882240 bytes
255 heads, 63 sectors/track, 28935 cylinders, total 464843520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
Disk identifier: 0x920f10af

Device Boot Start End Blocks Id System
/dev/mapper/pdc_daggehfja1 2048 112642047 56320000 83 Linux
/dev/mapper/pdc_daggehfja2 * 112642048 464842751 176100352 7 HPFS/NTFS/exFAT

Disk /dev/mapper/pdc_daggehfja1: 57.7 GB, 57671680000 bytes
255 heads, 63 sectors/track, 7011 cylinders, total 112640000 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
Disk identifier: 0x00000000

Disk /dev/mapper/pdc_daggehfja1 doesn't contain a valid partition table

Disk /dev/mapper/pdc_daggehfja2: 180.3 GB, 180326760448 bytes
255 heads, 63 sectors/track, 21923 cylinders, total 352200704 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 131072 bytes
Disk identifier: 0x73736572

This doesn't look like a partition table
Probably you selected the wrong device.

Device Boot Start End Blocks Id System
/dev/mapper/pdc_daggehfja2p1 1920221984 3736432267 908105142 72 Unknown
Partition 1 does not start on physical sector boundary.
/dev/mapper/pdc_daggehfja2p2 ? 1936028192 3889681299 976826554 6c Unknown
Partition 2 does not start on physical sector boundary.
/dev/mapper/pdc_daggehfja2p3 ? 0 0 0 0 Empty
/dev/mapper/pdc_daggehfja2p4 27722122 27722568 223+ 0 Empty
Partition 4 does not start on physical sector boundary.

Disk /dev/sdd: 4004 MB, 4004511744 bytes
64 heads, 32 sectors/track, 3819 cylinders, total 7821312 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x2d2040cf

Device Boot Start End Blocks Id System
/dev/sdd1 * 0 1812479 906240 17 Hidden HPFS/NTFS

Disk /dev/sdd1: 927 MB, 927989760 bytes
64 heads, 32 sectors/track, 885 cylinders, total 1812480 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x2d2040cf

Device Boot Start End Blocks Id System
/dev/sdd1p1 * 0 1812479 906240 17 Hidden HPFS/NTFS
################################################################################

This time i have followed this guide: http://www.overclockers.com/how-to-dual ... aid-array/

My issue:
When i come to the number 25. in the guide i am executing this:
grub> find /boot/grub/stage1
what i get:
Error 15: File not found

If i go through the gui i can see the file /boot/grub/stage1

If you need more info i will provide it to you asap.

Thanks in advance.
Mads G. Jensen
gadeberg
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Posts: 1
Joined: Sat Jan 26, 2013 5:16 pm

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