On 09/22/2013 11:19 PM, Dave Gomboc wrote: > [snipped] >> However, based on the data you've reported, sda1 and sdc1 are identical, >> down to the superblock bytes. And sdb1 and sdd1 are also identical, >> down to the superblock bytes. >> >> Are you sure there were no misdirected "dd" operations? >> >> Phil > > I did not start using ddrescue until after I was no longer able to > boot the raid array. When I did the ddrescuing, I specifically used > the /dev/disk/by-id symlinks, not the sdX names, precisely in order to > avoid accidents. I was extremely alarmed by the inability to boot the > raid10, and took extra care to make sure I was doing it properly. Ok. If you'll generate the following for each member, we'll see what we can do: dd if=/dev/sdX1 bs=512 skip=2048 count=16 2>/dev/null |hexdump -C dd if=/dev/sdX1 bs=512 skip=3072 count=16 2>/dev/null |hexdump -C (These will be smaller than the other report... which didn't make it to the list.) Phil -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
