DOS ain't dead

some TSR/patch to modify BIOS/EDD? (Users)

posted by RayeR , CZ, 04.05.2026, 17:48

I'm a bit disappointed of various partition resizing tools (to expand existing FAT32 from 1,6TB to 2TB). I tried many ~10 tools and was surprised about the problems. Many of them just reported invalid partition or invalid size of current partition and so didn't allow to resize. Some others started resizing but hanged with zero disk activity after some time or ended with some error while partition (and data) left untouched. I run them under w7-x64 to have proper 64b arithmetics. The last I tried was Paragon Partition Community Edition x64 [ https://www.paragon-software.com/free/pm-express/# ] relative new SW - it resized the partition after cca 1/2 hour but screwed the data. Root dir looks fine but when I opened subdirs there was a garbage. Even it screwed my extended partition with FAT16 logical drives a crazy way they can be accessed under Windows and linux but DOS6/7 throws error when acesing them. Record in partition table seems OK. So I just going to wipe all that crap, repartition manually and load from a backup that takes several hours on such amount of data...
So just beware such tools promising "partition resize without data loss". In the past I used Powerquest Partition Magic (the latest 8.05 for DOS) to resize FAT16/32 partitions and I never had a problem but this old tool can't handle such big drivers.

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DOS gives me freedom to unlimited HW access.

Complete thread:

• Partitioning of 4TB HDD for legacy OSes - RayeR, 27.04.2026, 22:45 (Users)
  • Partitioning of 4TB HDD for legacy OSes - mceric, 28.04.2026, 01:35
    • Partitioning of 4TB HDD for legacy OSes - bretjohn, 28.04.2026, 03:04
      • Partitioning of 4TB HDD for legacy OSes - Laaca, 28.04.2026, 05:08
        • Partitioning of 4TB HDD for legacy OSes - RayeR, 28.04.2026, 17:28
          • Partitioning of 4TB HDD for legacy OSes - Rugxulo, 29.04.2026, 05:23
            • Partitioning of 4TB HDD for legacy OSes - RayeR, 29.04.2026, 20:09
        • Partitioning of 4TB HDD for legacy OSes - bretjohn, 28.04.2026, 17:30
          • Partitioning of 4TB HDD for legacy OSes - Laaca, 28.04.2026, 18:31
            • Partitioning of 4TB HDD for legacy OSes - RayeR, 28.04.2026, 20:31
    • Partitioning of 4TB HDD for legacy OSes - RayeR, 28.04.2026, 17:21
  • Partitioning of 4TB HDD for legacy OSes - Zyzzle, 29.04.2026, 01:39
    • Partitioning of 4TB HDD for legacy OSes - bretjohn, 29.04.2026, 03:39
    • some TSR/patch to modify BIOS/EDD? - RayeR, 29.04.2026, 20:20
      • some TSR/patch to modify BIOS/EDD? - ecm, 29.04.2026, 20:56
        • some TSR/patch to modify BIOS/EDD? - RayeR, 30.04.2026, 17:31
          • some TSR/patch to modify BIOS/EDD? - ecm, 30.04.2026, 20:06
          • some TSR/patch to modify BIOS/EDD? - Laaca, 01.05.2026, 12:24
          • some TSR/patch to modify BIOS/EDD? - RayeR, 04.05.2026, 17:48
            • failed with hybrid MBR under Windows - RayeR, 07.05.2026, 15:40
              • failed with hybrid MBR under Windows - bretjohn, 07.05.2026, 22:36
                • failed with hybrid MBR under Windows - RayeR, 09.05.2026, 18:16
                  • failed with hybrid MBR under Windows - RayeR, 11.05.2026, 07:47
                    • New Idea how to beak 2TB on WinXP-32 - RayeR, 23.05.2026, 13:51