Menu

Hardware RAID BACKUP Illegal Partition Table

Help
2009-06-09
2013-04-05
  • OutOfTheBox1

    OutOfTheBox1 - 2009-06-09

    We have backed up two disks from a SATA RAID1.  When we go to restore the files to brand new disks. we encounter the following error messages.
    "The partition table on this disk is illegal.
    "Does this partition table fit this disk? /home/partimag/date-scan/sdb-pt.sf"
    "Is this disk too small."
    The system is runing Adaptec SATA RAID1 with 2 disks and multiple partitions.  We have backed up both disks and only 1 disk to try to restore with the same results..  When we put in the new disks, we setup the RAID1 in the Adaptec BIOS to be identical to what was there before.  I don't know if it matters, but the software being restored is based on XP professional operating system.
    How do we get around this problem?

     
    • Steven Shiau

      Steven Shiau - 2009-06-10

      As the hints say:
      "The partition table on this disk is illegal.
      "Does this partition table fit this disk? /home/partimag/date-scan/sdb-pt.sf"
      "Is this disk too small."

      Make sure the target disk (no matter is RAID or not) is equal or larger than the source disk which you took the image.

      For more info about this limitation, please check:
      http://drbl.sourceforge.net/faq/fine-print.php?path=./2_System/25_restore_larger_disk_to_smaller_one.faq#25_restore_larger_disk_to_smaller_one.faq

       
      • OutOfTheBox1

        OutOfTheBox1 - 2009-06-10

        Thank you for your prompt reply. 
        I apologize for not including the detail that the disks are identical.  Same vendor, same part number, same everything.

        In the past, I had this problem on a restore to a new disk that was not in RAID and was able to get around it by creating the partitions on the new disk.  In this case, it is not really that easy to create new partitions so I was hoping there was a better way.

        Any ideas?
        Thanks.

         
        • Steven Shiau

          Steven Shiau - 2009-06-11

          Maybe you can:
          1. Use GParted live to resize the partition, make it smaller.
          2. Create the partition table of target disk manually, make sure it's equal or larger then the source partition in the step 1.
          3. Use the partition clone function of clonezilla to clone the partition only. Remember do not let Clonezilla to repartition the target disk for you.

          Steven.

           
    • OutOfTheBox1

      OutOfTheBox1 - 2009-06-12

      Appearantly, we were attempting to clone the RAID as a whole of both disks.  When we were restoring, it was attempting to restore to 1 of the 2 disks.  We were able to get around that problem and had to use the -e option to get a good clone and restore of the RAID.  Thanks for all of your great work on CZ.

       
      • Steven Shiau

        Steven Shiau - 2009-06-12

        Christopher,
        Great. Cool. Thanks for your sharing.

        Steven.

         

Log in to post a comment.