Hi all, here is my first post.
Searching the forum, my problem looks like https://reboot.pro/i...&hl=+bios +ahci
I too have a BIOS with no AHCI option, and after many more attempts, I'm trying to work around it like this:
- USB floppy drive, I already own it and tested working
- FreeDOS plus an XMS driver (XMGR by Jack R. Ellis)
- CWSDPMI to enter protected mode
- (maybe borrowed from ex buildbot.flashrom.org) a setpci.exe to carry my ICH7-M chipset from IDE (8086:27c4) to AHCI (8086:27c5) - during a Debian boot sequence, with a well populated initramfs, just write setpci -s 0:1f.2 90.b=40 at the end of a grub2 stanza
- and this is where in DOS the internal SSD vanishes due to not implementing ports, this is where I would need an "AHCI driver" for DOS hard disk or something similar and before it is loaded winload.exe and the CriticalDeviceDatabase
- (borrowed from https://reboot.pro/i...hl=+patch +ahci ) if i could access the internal SSD i could then use my self-compiled grub4dos to chainload Windows 7 bootmgr which resides into the vanished disk, first MBR partition
I have discussed all of the above here as well ( https://superuser.co...-not-in-windows ) ( https://www.bttr-sof...?id=7412#p20313 ) but feel free to ask, if something is not clear.
I am open to advice and suggestions, if there are other avenues to explore, something that for example includes a hacked bootmgr.
My best and thanks for attention