On Wed, 21 Oct 2020 09:04:12 -0400 Dan Ritter <d...@randomstring.org> wrote:
> 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. Thanks - I've used DOS before, and I'm somewhat familiar with its basic use. > 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. Thanks, but as I've described in more detail in my email to Reco, none of the executables in either A: or B: work, and according to the manual, none of them should need to be executed manually - the thing is supposed to continue from its initial menu screen to its actual operation, but instead it's bailing with the errors shown. Thank you again, Celejar
