Hello! Here's my story in short. I had an LVM1 setup with kernel 2.4, with 4 disks making up a VG. On the VG lived (and still live, I hope) 3 LV with filesystems. My trouble starts when one of those disks crashed! I installed kernel 2.6.7, device mapper and LVM2 tools to recover the filesystems (yes, there was no backup earlier than 6 months ago). I managed to completely recover all filesystems that are on the LVs not containing the bad disk using the partial activation feature of LVM2, but I'm getting a dm error for the one on the problematic disk. Based on previous postings both on this list and on the lvm list and various info on man-pages, I created an ioerror "device" exactly the size of the failed disk, linked to it from /dev/ioerror, but the LV still fails to activate. Following debug messages of LVM, what the code does is about this: 1) it creates a "soft"-device that is a concatenation of the original disks & partitions, and replaces the failed disk with mappings to /dev/ioerror 2) there's not a signle mapping to /dev/ioerror, but lots of them, each one with size 8192 3) tries to reload the mapping and then fails with "ioctl cmd 9 failed" I also tried to recreate a mapping file following what the lvm code did, and replacing the chunk-mappings of 8192 sectors with one single mapping, but it fails with the same error. Thanx in advance for any help, C/ __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail