What causes this partition discrepancy between GParted and Disk Management?












1














Here's a screenshot of my partition layout as seen by GParted:



GParted



There are three primary partitions and an extended partition (it's a MBR disk) that contains two logical disks, some unallocated space and one more logical disk.



Now, here's the same disk as seen by Windows:



Disk Management



Four primary partitions, then an extended partition containing one logical disk and unallocated space, then one more primary partition. That's 6 top-level partitions, while MBR allows only four.



What causes this anomaly? How can I diagnose it? How can I fix it?



Here's fdisk -l output:



Disk /dev/sda: 298,1 GiB, 320072933376 bytes, 625142448 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x7a675f3e

Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 83888127 83886080 40G 83 Linux
/dev/sda2 83888128 92276735 8388608 4G 83 Linux
/dev/sda3 * 92276736 251660287 159383552 76G 7 HPFS/NTFS/exFAT
/dev/sda4 251660288 625141759 373481472 178,1G 5 Extended
/dev/sda5 251662336 293605375 41943040 20G 83 Linux
/dev/sda6 293607424 377493503 83886080 40G 7 HPFS/NTFS/exFAT
/dev/sda7 608364544 625141759 16777216 8G 83 Linux


Additional information:




  • All partitions except sda6 were created under Linux before Windows was installed. sda6 (the sole logical disk detected by Windows) was created later using Disk Management. It already displayed all partitions as primary prior to that.

  • When I installed Windows to sda3, sda5 disappeared from the partition table. It wasn't wiped, when I recreated it without formatting the data was still there. Then I installed Windows on sda3 again and sda5 disappeared, just like before.

  • Windows detects this disk as MBR.

  • It's Windows 7 Professional 32-bit with all updates installed.










share|improve this question



























    1














    Here's a screenshot of my partition layout as seen by GParted:



    GParted



    There are three primary partitions and an extended partition (it's a MBR disk) that contains two logical disks, some unallocated space and one more logical disk.



    Now, here's the same disk as seen by Windows:



    Disk Management



    Four primary partitions, then an extended partition containing one logical disk and unallocated space, then one more primary partition. That's 6 top-level partitions, while MBR allows only four.



    What causes this anomaly? How can I diagnose it? How can I fix it?



    Here's fdisk -l output:



    Disk /dev/sda: 298,1 GiB, 320072933376 bytes, 625142448 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: dos
    Disk identifier: 0x7a675f3e

    Device Boot Start End Sectors Size Id Type
    /dev/sda1 2048 83888127 83886080 40G 83 Linux
    /dev/sda2 83888128 92276735 8388608 4G 83 Linux
    /dev/sda3 * 92276736 251660287 159383552 76G 7 HPFS/NTFS/exFAT
    /dev/sda4 251660288 625141759 373481472 178,1G 5 Extended
    /dev/sda5 251662336 293605375 41943040 20G 83 Linux
    /dev/sda6 293607424 377493503 83886080 40G 7 HPFS/NTFS/exFAT
    /dev/sda7 608364544 625141759 16777216 8G 83 Linux


    Additional information:




    • All partitions except sda6 were created under Linux before Windows was installed. sda6 (the sole logical disk detected by Windows) was created later using Disk Management. It already displayed all partitions as primary prior to that.

    • When I installed Windows to sda3, sda5 disappeared from the partition table. It wasn't wiped, when I recreated it without formatting the data was still there. Then I installed Windows on sda3 again and sda5 disappeared, just like before.

    • Windows detects this disk as MBR.

    • It's Windows 7 Professional 32-bit with all updates installed.










    share|improve this question

























      1












      1








      1







      Here's a screenshot of my partition layout as seen by GParted:



      GParted



      There are three primary partitions and an extended partition (it's a MBR disk) that contains two logical disks, some unallocated space and one more logical disk.



      Now, here's the same disk as seen by Windows:



      Disk Management



      Four primary partitions, then an extended partition containing one logical disk and unallocated space, then one more primary partition. That's 6 top-level partitions, while MBR allows only four.



      What causes this anomaly? How can I diagnose it? How can I fix it?



      Here's fdisk -l output:



      Disk /dev/sda: 298,1 GiB, 320072933376 bytes, 625142448 sectors
      Units: sectors of 1 * 512 = 512 bytes
      Sector size (logical/physical): 512 bytes / 512 bytes
      I/O size (minimum/optimal): 512 bytes / 512 bytes
      Disklabel type: dos
      Disk identifier: 0x7a675f3e

      Device Boot Start End Sectors Size Id Type
      /dev/sda1 2048 83888127 83886080 40G 83 Linux
      /dev/sda2 83888128 92276735 8388608 4G 83 Linux
      /dev/sda3 * 92276736 251660287 159383552 76G 7 HPFS/NTFS/exFAT
      /dev/sda4 251660288 625141759 373481472 178,1G 5 Extended
      /dev/sda5 251662336 293605375 41943040 20G 83 Linux
      /dev/sda6 293607424 377493503 83886080 40G 7 HPFS/NTFS/exFAT
      /dev/sda7 608364544 625141759 16777216 8G 83 Linux


      Additional information:




      • All partitions except sda6 were created under Linux before Windows was installed. sda6 (the sole logical disk detected by Windows) was created later using Disk Management. It already displayed all partitions as primary prior to that.

      • When I installed Windows to sda3, sda5 disappeared from the partition table. It wasn't wiped, when I recreated it without formatting the data was still there. Then I installed Windows on sda3 again and sda5 disappeared, just like before.

      • Windows detects this disk as MBR.

      • It's Windows 7 Professional 32-bit with all updates installed.










      share|improve this question













      Here's a screenshot of my partition layout as seen by GParted:



      GParted



      There are three primary partitions and an extended partition (it's a MBR disk) that contains two logical disks, some unallocated space and one more logical disk.



      Now, here's the same disk as seen by Windows:



      Disk Management



      Four primary partitions, then an extended partition containing one logical disk and unallocated space, then one more primary partition. That's 6 top-level partitions, while MBR allows only four.



      What causes this anomaly? How can I diagnose it? How can I fix it?



      Here's fdisk -l output:



      Disk /dev/sda: 298,1 GiB, 320072933376 bytes, 625142448 sectors
      Units: sectors of 1 * 512 = 512 bytes
      Sector size (logical/physical): 512 bytes / 512 bytes
      I/O size (minimum/optimal): 512 bytes / 512 bytes
      Disklabel type: dos
      Disk identifier: 0x7a675f3e

      Device Boot Start End Sectors Size Id Type
      /dev/sda1 2048 83888127 83886080 40G 83 Linux
      /dev/sda2 83888128 92276735 8388608 4G 83 Linux
      /dev/sda3 * 92276736 251660287 159383552 76G 7 HPFS/NTFS/exFAT
      /dev/sda4 251660288 625141759 373481472 178,1G 5 Extended
      /dev/sda5 251662336 293605375 41943040 20G 83 Linux
      /dev/sda6 293607424 377493503 83886080 40G 7 HPFS/NTFS/exFAT
      /dev/sda7 608364544 625141759 16777216 8G 83 Linux


      Additional information:




      • All partitions except sda6 were created under Linux before Windows was installed. sda6 (the sole logical disk detected by Windows) was created later using Disk Management. It already displayed all partitions as primary prior to that.

      • When I installed Windows to sda3, sda5 disappeared from the partition table. It wasn't wiped, when I recreated it without formatting the data was still there. Then I installed Windows on sda3 again and sda5 disappeared, just like before.

      • Windows detects this disk as MBR.

      • It's Windows 7 Professional 32-bit with all updates installed.







      windows-7 partitioning disk-management






      share|improve this question













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      asked Dec 6 at 15:52









      gronostaj

      27.9k1368107




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