Just one more observation. I managed to mount minix filesystem from CF Card on system booted from 360k floppy! And not using directhd driver at all! My mistake was, I tried to mount /dev/hda1 while the partition is at /dev/bda1 I've noticed, chroot command would be a great help. Cheers again, Paul On Mon, 15 Apr 2019, Paul Osmialowski wrote: > Hi Marc, > > Thanks for your response. I've noticed a few interesting things btw. > > I've found lots of #ifdef HARDDISK in this new boot sector code, so I > decided to give it a try. I've placed this boot sector code in > /dev/hda1 (leaving original FreeDOS MBR in /dev/hda) and for a first time > I've noticed something is alive: "MINIX boot" appeared on screen when I > booted from CF Card! But that's all, the next thing it tried to do was to > access floppy disk drive, having it empty, I could only see "Press key" > and it rebooted itself after pressing any key. I guess my XT-IDE card is > not handled properly, although when I boot ELKS from floppy I can see this > on the serial console: > > hd Driver Copyright (C) 1994 Yggdrasil Computing, Inc. > > Extended and modified for Liux 8086 by Alan Cox. > > doshd: 2 floppy drives and 1 hard drive > > /dev/hda: 123 cylindrs, 16 heads, 6 sectors = 60.5 Mb > > (that's when 64MB FreeDOS CF Card is inserted) > > Also, before the ELKS boot starts I can see this: > > XTIDE Universal BIOS (XT) @ C800h > Master at 300h: CF Card > Slave at 300h: not found > > I've tried to compile directhd driver, but it lacks #include <arch/io.h> > causing link-time issue as some of the macros defined there are mistaken > for functions (outb_p() and friends), adding missing #include <arch/io.h> > makes whole thing buildable, yet it still doesn't seem to make any > (visible) difference. > > Cheers, > Paul > > On Sun, 14 Apr 2019, Marc-F. Lucca-Daniau wrote: > > > Hello, > > > > Not a surprise, as the new code has only been tested on 1.44 MB floppy. > > > > Looks like there is a missing "#ifdef FD360" in the boot sector new code... > > > > Now tracked by issue https://github.com/jbruchon/elks/issues/253 > > > > Thanks for the report, > > > > MFLD > > > > > > Le 14/04/2019 ? 19:46, Paul Osmialowski a écrit : > > > Hi, > > > > > > I'm having access to my old XT for next couple of days so I decided to > > > give the latest ELKS a go. Since I still don't know how to boot it from > > > CF-IDE card (I can boot FreeDOS from it), I'm still booting it from 360k > > > floppy. Unfortunately, nowadays it only prints MINIX and reboots itself > > > after a while. > > > > > > I managed to make it boot again after reverting following commits on > > > master: > > > > > > 93b57f474cb0e3fa9917b4783781cd405c944b04 [libc] Data segment starts with > > > nil data > > > 9e038b816014f83c0808df1ee5697380cd6be499 Revise bootblocks for GCC-IA16 > > > > > > (the first one is reverted mostrly to reduce conflicts when reverting the > > > other one). > > > > > > I guess something went wrong with implementing new features. > > > > > > Cheers, > > > Paul > > > > > > > >