Reco wrote: > Hi. > > On Tue, Oct 20, 2020 at 09:10:48PM -0400, Celejar wrote: > > I had started thinking about PXE after my initial post. I tried PXE > > (from my OpenWrt router) - it was actually fairly easy to setup, > > following the guide here: > > > > https://openwrt.org/docs/guide-user/services/tftp.pxe-server > > > > And the thing actually runs! But I get the same errors described here :( > > > > https://www.ultimatebootcd.com/forums/viewtopic.php?t=2528 > > > > To be more precise, here's what I get: > > > > ********** > > > > HIMEM: DOS XMS Driver, Version 3.15 - 05/30/94 > > Extended Memory Specification (XMS) Version 3.0 > > Copyright (C) IBM Corp. 1988, 1994 > > > > ERROR: Unable to control A20 line! > > XMS Driver not installed. > > > > IBM RAMDrive version 3.10 virtual disk C: > > RAMDrive: Extended Memory Manager not present > > HMA not available: Loading DOS low > > Microsoft (R) Mouse Driver Version 8.20 > > Copyright (C) Microsoft Corp. 1983-1992. > > Copyright (C) IBM Corp. 1992-1993. > > Mouse driver installed > > Loading DFT ... > > > > Insert diskette for drive B: and press any key when ready > > > > <keypress> > > > > Error RAMDRIVE not found or wrong RAMDRIVE size. > > > > Insert diskette for drive A: and press any key when ready > > > > <keypress> > > > > A:\DFT> > > > > ********** > > > > and that's it. Is this just a limitation of memdisk's emulation? Any > > further ideas? > > Hm. Aren't you supposed to execute something from that A:\DFT directory? > I mean, it booted, successfully mapped memdisk to A:, all is left to > execute an appropriate .COM/.EXE.
As Reco says: that's a success. You're in a DOS command-line environment. New experience: I've never explained DOS commands in terms of shell commands before; it's always been the other way around. UNIX systems have a single root; DOS systems have a root on each filesystem, and filesystems are identified by a letter followed by a colon. Traditionally A: and B: are removable media and C: is a hard disk, but it's not mandatory. Change to a different filesystem root by typing the letter followed by a colon c: ls dir (you want /p for paginate) cd chdir (later versions allow you to substitute cd) fsck chkdisk reset cls clear screen rm del cp copy cp -r xcopy Go find the executable you need and run it by just typing its name or its path. Remember the slashes are backwards. -dsr-