I thought uide was a dma version of IDE pio mode? It works on the atapi io
On Saturday, July 20, 2013, Rugxulo wrote:
> > Mateusz Viste schreef op 20-7-2013 23:08:
> >> Could you tell me please which software you see old?
> > Mainly the bootdisk programs:
> > * kernel: 2036 instead of 2041
> Well, 2036 wasn't exactly horribly buggy nor super old (FD 1.0 in
> 2006), but anyways ....
> > * xcdrom instead of udvd2
> I profess complete ignorance of all the IDE / SATA / PATA confusion. I
> never understood it, but I'm no engineer. Can someone please explain
> which driver is best in which circumstance? By default, I assumed that
> UIDE doesn't support SATA or PATA, only IDE (maybe only via legacy
> In particular, GCDROM and XGCDROM are forks of XCDROM (predecessor of
> I'm 99% sure that Jack Ellis would strongly recommend against those
> forks since they are based upon older, buggy code. But I'm not sure if
> they somehow work better in non-IDE instances.
> >>> * missing CWSDPMI.EXE apparently
> >> Yes, cwsdpmi is not on the boot floppy. Mostly because it's not needed -
> >> have you run into any kind of troubles because of the lack of cwsdpmi?
> > Yes: "load error: no DPMI - Get csdpmi*b.zip" upon invoking FDNPKG.EXE
> Was this intentional or just to avoid swapping to floppy or ... ? Of
> course, you can bind CWSDSTUB.EXE to the .EXE (and/or use CWSPARAM to
> disable swapping entirely). It's still fairly small.
> >> What's happening exactly? I'm not really a VMware aficionado, never
> >> tested FreeDOS with this. Is it some kind of a 'known bug' specific to
> >> FDISK and VMware? What solution would you suggest?
> > I get errorlevel 64: "Error Reading Hard Disk: Search operation failed.
> > Program terminated."
> > fdisk 1.2.1 works.
> Meh. I'm not sure that's a good thing. Perhaps one of us needs to ping
> Brian R. again?
> Or you could (should?) also include / try XFDISK and/or SPFdisk ??
> > Emulators make things difficult. Dosbox and Rpix86 have very strange
> > behaviour for driveletters, filesystems and memory behaviour.
> DOSBox has its own DOS and doesn't use FreeDOS. Unless you're thinking
> of "BOOT"?
> Rpix86 presumably means something like QEMU on Raspberry PI. (QEMU
> still has various bugs regarding segmentation, probably since it's not
> needed for Linux emulation.)
> >> Is it because of the XCDROM.SYS ? I'm no expert here, but aren't SATA CD
> >> drives acting as some kind of 'emulated IDE' ? Or does it mean that the
> >> boot image would need a special SATA driver, and some detection logic to
> >> load the right driver? This starts to sound complicated :P
> > Yes, and a lack of DOS drivers for various controllers/interfaces is the
> > main culprit. The CD driver works for IDE and for SATA in legacy mode.
> > Now imagine having only an USB CD drive on a system.
> > (or something emulating it, like a Zalman hdd-caddy, or ISOSTICK)
> Didn't someone integrate eltorito.sys into isolinux a few years ago?
> Doesn't that help somewhat?
> > I'm not sure anymore nowadays the goal is installing FreeDOS on a
> > dedicated system, but rather to have it available and to use it, when
> > necessary. What I mean to say is, people will boot from your CD, then
> > find out their harddisk is partitioned 100% already for Windows. Thus,
> > no easy way to get a drive C: available.
> Unavoidable without some (limited) NTFS driver. Maybe GRUB4DOS can
> boot a DOS image file created as one contiguous block file? But how to
> create that ... dunno, someone may have to write it (not me!).
> But anyways, Windows since Vista lets you optionally resize the NTFS
> partition, so it's no big deal. (Also RUFUS can install FreeDOS to
> bootable USB stick.)
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