Nigel Kendrick spake the following on 10/5/2006 12:45 PM:
Apologies if you get this twice - the first one didn't seem to make it...
Hi Guys,
I have just replaced a faulty Max...woah, wait...this one's a Seagate... IDE hard disk but I cannot remake the software raid pair.
The currently running disk is hda and I am trying to add back hdg - both are master drives on separate controllers.
I have run fdisk on hdg and created the same partition structure as had and changed their types to 'fd' but when I try and rebuild the array I get:
mdadm /dev/md0 -a /dev/hdg1
mdadm: hot add failed for /dev/hdg1: Invalid argument
If I look at /var/log/messages, I have:
Oct 5 16:04:39 petdoctors kernel: md: could not bd_claim hdg1. Oct 5 16:04:39 petdoctors kernel: md: error, md_import_device() returned -16
From other postings, this seems to imply the hdg1 partition is mounted but I
can find no evidence of this (df or cat /proc/mounts or lsof). I have done sone googling and found others having fun with this but no specific solution.
Anyone?
Maybe the table didn't get re-read after fdisk was done. I usually use sfdisk just because I can copy a partition table without making my usual fat-fingered typos. Are you sure that the new drive isn't smaller than the old? Even by a few cylinders.