3 Replies Latest reply on Feb 25, 2011 2:12 PM by Dan_O

    Boot Order MBR Signature - Intel® Server Board S5520UR

    zshe803

      Hi,

       

      I have been writing some software for initializing/formating new drives, under Windows XP.

       

      I have the code working, but I am finding that any drives that I have Initialized with my software, when they are installed in one of my servers, get a boot priority assigned to them higher than the current OS boot drive.

       

      When I initialize the drives with Windows Disk Management I do not get this issues.

       

      For what I am seeing I think is something to do with how the BIOS is using the MBR Disk Signature, would anyone be able to explain how this works?

       

      Regards,

      Zac Shenker

        • 1. Re: Boot Order MBR Signature - Intel® Server Board S5520UR
          Dan_O

          The only thing I can think of, if Windows Disk Management gives different results than your software, is to compare the MBR Disk Signature between a drive done by WDM and one done by your software.  What are they setting?

          • 2. Re: Boot Order MBR Signature - Intel® Server Board S5520UR
            zshe803

            My general situtation is that I have 2x SSD Data Drives & an SSD Boot Drive

             

            The MBR Signature my software is producing are of the format:

            00DFC325 - Data 1

            005ECD34 - Data 2

            00000001(Boot/OS Drive - OCZ Turbo SSD)

             

            Ones that I have seen from Windows Disk Management:

            123096F4 - Data 1

            153096F6 - Data 2

             

            A3023969 - Data 1

            A302396B - Data 2

            9EBF9RBF(Boot/OS Drive - Intel X25-E SSD)

             

            D895AE4B- Data 1

            D895AE49 - Data 2

            DD57DD57(Boot/OS Drive - Intel X25-E SSD)

             

            The major issue that I am having is that when I boot up with drives that I have initialised in my software the boot order will be changed to use them rather than my OS drive. When I use Data disks initialized with Windows Disk Management I do not have this issue.

             

            Zac

            • 3. Re: Boot Order MBR Signature - Intel® Server Board S5520UR
              Dan_O

              Well, clearly the Boot/OS drive data is quite different.  I can't tell what role the BIOS would be playing here, though.

               

              I would almost suggest asking for help from people who also code their own drive initialization/formatting software, maybe.  It's pretty far beyond the scope of the normal server stuff we see in here.