Re: trying to brute-force my RAID 5...

2006-07-23 Thread Tuomas Leikola
On 7/19/06, Sevrin Robstad [EMAIL PROTECTED] wrote: I tried file -s /dev/md0 also, and with one of the disk as first disk I got ext 3 filedata (needs journal recovery) (errors) . Congratulations, you have found your first disk. Does fsck still complain about the magic number? - To unsubscribe

Re: trying to brute-force my RAID 5...

2006-07-18 Thread Francois Barre
What are you expecting fdisk to tell you? fdisk lists partitions and I suspect you didn't have any partitions on /dev/md0 More likely you want something like fsck -n -f /dev/md0 and see which one produces the least noise. Maybe a simple file -s /dev/md0 could do the trick, and would only

Re: trying to brute-force my RAID 5...

2006-07-18 Thread Brad Campbell
Francois Barre wrote: What are you expecting fdisk to tell you? fdisk lists partitions and I suspect you didn't have any partitions on /dev/md0 More likely you want something like fsck -n -f /dev/md0 and see which one produces the least noise. Maybe a simple file -s /dev/md0 could do the

Re: trying to brute-force my RAID 5...

2006-07-18 Thread Francois Barre
More likely to produce an output whenever the 1st disk in the array is in the right place as it will just look at the 1st couple of sectors for the superblock. I'd go with the fsck idea as it will try to inspect the rest of the filesystem also. Obviously that's true, but it's still a good

Re: trying to brute-force my RAID 5...

2006-07-18 Thread Molle Bestefich
Sevrin Robstad wrote: I created the RAID when I installed Fedora Core 3 some time ago, didn't do anything special so the chunks should be 64kbyte and parity should be left-symmetric ? I have no idea what's default on FC3, sorry. Any Idea ? I missed that you were trying to fdisk -l

Re: trying to brute-force my RAID 5...

2006-07-18 Thread Sevrin Robstad
Neil Brown wrote: I have written some posts about this before... My 6 disk RAID 5 broke down because of hardware failure. When I tried to get it up'n'running again I did a --create without any missing disk, which made it rebuild. I have also lost all information about how the old RAID was set

Re: trying to brute-force my RAID 5...

2006-07-17 Thread Molle Bestefich
Sevrin Robstad wrote: I got a friend of mine to make a list of all the 6^6 combinations of dev 1 2 3 4 5 missing, shouldn't this work ??? Only if you get the layout and chunk size right. And make sure that you know whether you were using partitions (eg. sda1) or whole drives (eg. sda - bad

Re: trying to brute-force my RAID 5...

2006-07-17 Thread Sevrin Robstad
Molle Bestefich wrote: Sevrin Robstad wrote: I got a friend of mine to make a list of all the 6^6 combinations of dev 1 2 3 4 5 missing, shouldn't this work ??? Only if you get the layout and chunk size right. And make sure that you know whether you were using partitions (eg. sda1) or

Re: trying to brute-force my RAID 5...

2006-07-17 Thread Neil Brown
On Monday July 17, [EMAIL PROTECTED] wrote: I have written some posts about this before... My 6 disk RAID 5 broke down because of hardware failure. When I tried to get it up'n'running again I did a --create without any missing disk, which made it rebuild. I have also lost all information

trying to brute-force my RAID 5...

2006-07-16 Thread Sevrin Robstad
I have written some posts about this before... My 6 disk RAID 5 broke down because of hardware failure. When I tried to get it up'n'running again I did a --create without any missing disk, which made it rebuild. I have also lost all information about how the old RAID was set up.. I got a