Kubuntu 10.04 64 bit
I have two identical disks that were set up as a RAID 1 Array. The box they were in, which I know little about, has died, and I need to rebuild the array. The disks are installed in the machine, the BIOS sees them, and GParted has correctly identified them as being in an array. When I try mdamd --assemble ... mdamd comes back with the message "mdadm: no recogniseable superblock on /dev/sdb" and aborts. From my reading I am guessing that the original array was made with a BUILD command, rather than a CREATE command. So I must rebuild it also using BUILD. How then do I discover what chunk size was used? I know, or can deduce all the other information required.
Other questions:
1. This array was originally in a 32 bit machine. Will I be better off trying to recover it on a 32 bit machine, rather than the 64 Bit machine?
2. If I use the wrong chunk size, will the data on the disk be destroyed?
Thanks for your time
I have two identical disks that were set up as a RAID 1 Array. The box they were in, which I know little about, has died, and I need to rebuild the array. The disks are installed in the machine, the BIOS sees them, and GParted has correctly identified them as being in an array. When I try mdamd --assemble ... mdamd comes back with the message "mdadm: no recogniseable superblock on /dev/sdb" and aborts. From my reading I am guessing that the original array was made with a BUILD command, rather than a CREATE command. So I must rebuild it also using BUILD. How then do I discover what chunk size was used? I know, or can deduce all the other information required.
Other questions:
1. This array was originally in a 32 bit machine. Will I be better off trying to recover it on a 32 bit machine, rather than the 64 Bit machine?
2. If I use the wrong chunk size, will the data on the disk be destroyed?
Thanks for your time
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