STORAGE DEVICES BAD SECTOR DIAGNOSTICS AND REPAIR Forum - Recent Topics https://drevitalize.com/community/ STORAGE DEVICES BAD SECTOR DIAGNOSTICS AND REPAIR Discussion Board en-US Sat, 12 Sep 2026 06:56:43 +0000 wpForo 60 DOS protected mode demonstartion on how to do a fast read from a drive in AHCI mode. https://drevitalize.com/community/source-code-examples/dos-protected-mode-demonstartion-on-how-to-do-a-fast-read-from-a-drive-in-ahci-mode/ Sat, 18 Sep 2021 18:01:05 +0000 Once again AHCI programming, but this time a demonstration on how to do a fast read from a drive in AHCI mode.

First SATA drives are detected. Then a fast DMA read command is executed repeatedly on the first detected drive from sector 0 till the end. The source code compiles under a recent version of WATCOM C++ (1.9 or higher).

Fast DMA read in AHCI mode

]]> piotr https://drevitalize.com/community/source-code-examples/dos-protected-mode-demonstartion-on-how-to-do-a-fast-read-from-a-drive-in-ahci-mode/ Obtain SMART info in AHCI mode under 32-bit protected mode DOS https://drevitalize.com/community/source-code-examples/obtain-smart-info-in-ahci-mode-under-32-bit-protected-mode-dos/ Wed, 28 Jul 2021 12:13:45 +0000 I've been asked to make an example on how to obtain SMART data in 32-bit protected mode DOS on AHCI systems. So here it is. First SATA drives are detected. Then a SMART status is run on the first detected drive. The source code compiles under a recent version of WATCOM C++ (1.9 or higher).

Obtain SMART data in AHCI mode

]]> piotr https://drevitalize.com/community/source-code-examples/obtain-smart-info-in-ahci-mode-under-32-bit-protected-mode-dos/ HGST format unit problem https://drevitalize.com/community/questions-and-guidelines/hgst-format-unit-problem/ Wed, 08 Jul 2020 10:36:40 +0000 Greetings,

can you please help me with this problem. HGST drive is connected with usb. when i try to "set user password" or "format unit" it gives error. DCO also gives error. am i doing something wrong? screenshots: https://www.dropbox.com/s/evelt8g9dulntff/hdd.zip?dl=0

 

]]> Jelsomyno https://drevitalize.com/community/questions-and-guidelines/hgst-format-unit-problem/ Compatible flash drives for UEFI boot mode https://drevitalize.com/community/questions-and-guidelines/compatible-flash-drives-for-uefi-boot-mode/ Thu, 16 Apr 2020 18:38:01 +0000 I've been struggling to find a flash drive that is compatible with the UEFI boot mode of DRevitalize 4 and am wondering if anyone has had good luck with a certain brand or model of flash drive. Here's what I've tried so far:

Compatible:

  • PNY Mini M1 USB 2 16GB (no longer available)

Incompatible

  • SanDisk Ultra USB 3 32/64GB
  • SanDisk Ultra Fit USB 3 64GB
  • SanDisk Cruzer Force USB 2 64GB

Is there a capacity limit of the drives that the UEFI boot mode is compatible with? I don't have any other 16GB flash drives on hand to try, so I'd have to order another drive to try it. Any help would be appreciated.

]]> trevtech https://drevitalize.com/community/questions-and-guidelines/compatible-flash-drives-for-uefi-boot-mode/ Detect hard drives under DOS and do multi sector reads https://drevitalize.com/community/source-code-examples/detect-hard-drives-via-bios-and-do-multi-sector-reads/ Thu, 19 Mar 2020 11:13:05 +0000 This is an examlpe I made on request. It detects all hard drives via BIOS and then reads sectors from the first hard drive 0x80 starting at 0 and ending at maximum number of sectors available for that drive. ESC will stop the read.

Written in WATCOM C, 32-bit protected mode : DOS Detect drives and read multisector

]]> piotr https://drevitalize.com/community/source-code-examples/detect-hard-drives-via-bios-and-do-multi-sector-reads/ Detect all connected hard drives under DOS in AHCI mode https://drevitalize.com/community/source-code-examples/detect-all-connected-hard-drives-under-dos-in-ahci-mode/ Sat, 28 Dec 2019 01:09:45 +0000

A small example on how to detect all connected hard drives under 32-bit DOS extender and AHCI. The source code will compile under a recent version of WATCOM C++ (1.9 or higher). These are the steps executed by the code :

  1. BIOS functions from interrupt 0x1A are used to call PCI routines
  2. Full AHCI engine in 32-bit protected mode.
  3. Ability to detect hard drives on any AHCI port.
  4. ATA identify command is sent to each drive connected via AHCI link
  5. Information about drive model, drive serial number and drive firmware revision is displayed.

All code that is linked from forums is under MIT license.

DOS Drives detection AHCI

]]> piotr https://drevitalize.com/community/source-code-examples/detect-all-connected-hard-drives-under-dos-in-ahci-mode/ Detect all connected hard drives under DOS https://drevitalize.com/community/source-code-examples/detect-all-connected-hard-drives-under-dos/ Wed, 09 Oct 2019 16:11:51 +0000 A small example on how to detect all connected hard drives under 32-bit DOS extender and Legacy ATA. The source code will compile under a recent version of WATCOM C++ (1.9 or higher). These are the steps executed by the code :

  1. INT13h extensions are used to detect all drives visible by the BIOS and starting at 0x80.
  2. If the drive is removable the user is informed and the loop continues until all BIOS drives are checked.
  3. If the drive is a hard drive INT13h extensions are used to detect base ATA port and control ATA port.
  4. ATA identify command is sent to the drive using the detected ATA ports.
  5. Information about drive model, drive serial number and drive firmware revision is displayed.


All code that is linked from forums is under MIT license.

DOS Drives detection

]]> piotr https://drevitalize.com/community/source-code-examples/detect-all-connected-hard-drives-under-dos/