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I am following http://grub.enbug.org/Grub2LiveCdInstallGuide and I am using software RAID 0. I am using Ubuntu 10.10 LiveCD and is trying to restore grub2 after installing Windows 7 in another partition.

Here is the console's outputs:

ubuntu@ubuntu:~$ sudo fdisk -l

Unable to seek on /dev/sad

ubuntu@ubuntu:~$ sudo dmraid -r /dev/sdb: nvidia, "nvidia_acajefec", stripe, ok, 488397166 sectors, data@ 0 /dev/sda: nvidia, "nvidia_acajefec", stripe, ok, 488397166 sectors, data@ 0

So do you have an idea for how to make fdisk see my RAID array? How to make fdisk detect the Software RAID like dmraid?

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fdisk doesn't see RAID containers, fdisk sees partitions. Perhaps you meant to use fdisk on one of the device mapper devices instead.

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Is that so? I don't know the ways around in Linux at all, so how can I tell fdisk to do what you've said instead? – Karl Dec 26 '10 at 6:00
Point it to one of the /dev/dm-* device nodes instead. Or maybe /dev/md*. I don't do much work with software RAID. – Ignacio Vazquez-Abrams Dec 26 '10 at 7:05
I don't understand. There is no such function in fdisk. – Karl Dec 26 '10 at 12:05
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