Recovering/Restoring Boot Partition

[Chris Murphy]

On Feb 21, 2014, at 5:29 AM, Don Levey <fedora-list at the-leveys.us> wrote:
>> No. Hardware raid will show up as a single /dev/sdX device. What
>> results do you get for lsblk?

It's a nitpick, but for what it's worth it's always best to include the command used. I understand the motivation to keep things tidy, and concise, but in this case we're talking about one additional line.
>> 
>> 
> NAME                   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
> sda                    		  8:0    0   149G  0 disk
> &#9492;&#9472;sda3     		  8:3    0  99.8G  0 part
>  &#9500;&#9472;vg_dauphin-lv_root 253:0    0  94.9G  0 lvm  /
>  &#9492;&#9472;vg_dauphin-lv_swap 253:1    0     5G  0 lvm  [SWAP]
> sdb                    		  8:16   1   7.6G  0 disk
> &#9492;&#9472;sdb1    		  8:17   1   7.6G  0 part
> sdc                   		  8:32   0   149G  0 disk
> &#9500;&#9472;sdc1     		  8:33   0    49G  0 part
> &#9500;&#9472;sdc2     		  8:34   0   200M  0 part
> &#9492;&#9472;sdc3      	  8:35   0  99.8G  0 part
[snipped all loop and live devices]

Are you certain this is hardware raid and not firmware/BIOS/motherboard raid?  What is the make/model of hardware raid card? Did you choose one disk or two disks, in the Fedora installer?

It looks to me like sda and sdc have the same partitions and sizes, and suggests they should be in a raid1 configuration. I think sdb is probably USB flash media of the Fedora installer.

What it looks like to me is that this is actually IMSM RAID, which is a firmware initiated RAID but then is software raid after that. And for whatever reason it's not being properly initiated. The fact the first partition starts at LBA 63 suggests Windows XP at least originally.

What do you get for:

mdadm -E /dev/sda
mdadm -E /dev/sdc



Chris Murphy