dosemu - can't see USB drive

dosemu - can't see USB drive

[Frank Jansen]

I'm in the process of trying to create a USB DOS Bootable drive per the
instructions from ASElabs

Everything runs fine, including fix /proc/sys/vm/mmap_min_addr to get
dosemu to work. I get into dosemu and boot.log shows:

device: /etc/dosemu/drives/c type 4 h: -1 s: -1 t: -1 drive C:
device: /etc/dosemu/drives/d type 4 h: -1 s: -1 t: -1 drive D:
device: /dev/sdb1 type 3 partition# 1 h: -1 s: -1 t: -1 drive E:
CONF: cdrom MSCD0001 on /dev/cdrom
CONF: config variable c_system unset

and in the dosemu window:

C: HD1, Pri[ 1], CHS=   0-1-1, start=   0 MB, size= 392 MB
D: HD2, Pri[ 1], CHS=   0-1-1, start=   0 MB, size= 392 MB
E: HD3, Pri[ 1], CHS=   0-1-1, start=   0 MB, size= 476 MB
UMB's unavailable!

However, F: is invalid...

Any thoughts or hints on how to see /dev/sdb1?  I have verified that
there is rwx access exists for all.

Thanks,

Frank

Re: dosemu - can't see USB drive

[Javier Tarifa]

> Any thoughts or hints on how to see /dev/sdb1?  I have verified that
> there is rwx access exists for all.
>   

I would just mount /dev/sdb1 in linux (say in /mnt/usb/) and do "lredir 
f: linux\fs\mnt/usb"  in dosemu

Re: dosemu - can't see USB drive

[Bart Oldeman]

On Thu, Sep 24, 2009 at 10:05 AM, Frank Jansen <fjansen@egenera.com> wrote:
> device: /dev/sdb1 type 3 partition# 1 h: -1 s: -1 t: -1 drive E:
> E: HD3, Pri[ 1], CHS=   0-1-1, start=   0 MB, size= 476 MB

If this E: corresponds to your USB you should be able to see it after doing
lredir del e:
in DOSEMU at the DOS prompt, because the CDROM default redirection put
in autoexec.bat overrides it.

Why were you looking at F: though?

Bart
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Re: dosemu - can't see USB drive

[Frank Jansen]

Javier,

thank you for your suggestion.  I can now see the USB drive, but cannot
transfer the DOS system to it, as it is mounted, which prevents reading
of the bootsector.

I'm taking a look through the dosemu code to see, if I can figure out
what may be going wrong.

Frank
On Thu, 2009-09-24 at 16:57 +0200, Javier Tarifa wrote:
> > Any thoughts or hints on how to see /dev/sdb1?  I have verified that
> > there is rwx access exists for all.
> >   
> 
> I would just mount /dev/sdb1 in linux (say in /mnt/usb/) and do "lredir 
> f: linux\fs\mnt/usb"  in dosemu

Re: dosemu - can't see USB drive

[Frank Jansen]

Bart,

thank you for your suggestion, as I now have proper access to the USB
drive.  There are still more hurdles as KERNEL.SYS is not found during
sys e:, but this is real progress.

The reason for looking at F: was that I saw the CD at E: and the ASElabs
intrsutrctions had F: listed.

Thanks again.

Groeten,

Frank

On Thu, 2009-09-24 at 11:07 -0400, Bart Oldeman wrote:
> On Thu, Sep 24, 2009 at 10:05 AM, Frank Jansen <fjansen@egenera.com> wrote:
> > device: /dev/sdb1 type 3 partition# 1 h: -1 s: -1 t: -1 drive E:
> > E: HD3, Pri[ 1], CHS=   0-1-1, start=   0 MB, size= 476 MB
> 
> If this E: corresponds to your USB you should be able to see it after doing
> lredir del e:
> in DOSEMU at the DOS prompt, because the CDROM default redirection put
> in autoexec.bat overrides it.
> 
> Why were you looking at F: though?
> 
> Bart

Re: dosemu - can't see USB drive

[Frank Jansen]

FYI - overcame my last hurdle by performing sys e: from Z:

Thank you all!

Great tool
On Thu, 2009-09-24 at 11:14 -0400, Frank Jansen wrote:
> Bart,
> 
> thank you for your suggestion, as I now have proper access to the USB
> drive.  There are still more hurdles as KERNEL.SYS is not found during
> sys e:, but this is real progress.
> 
> The reason for looking at F: was that I saw the CD at E: and the ASElabs
> intrsutrctions had F: listed.
> 
> Thanks again.
> 
> Groeten,
> 
> Frank
> 
> On Thu, 2009-09-24 at 11:07 -0400, Bart Oldeman wrote:
> > On Thu, Sep 24, 2009 at 10:05 AM, Frank Jansen <fjansen@egenera.com> wrote:
> > > device: /dev/sdb1 type 3 partition# 1 h: -1 s: -1 t: -1 drive E:
> > > E: HD3, Pri[ 1], CHS=   0-1-1, start=   0 MB, size= 476 MB
> > 
> > If this E: corresponds to your USB you should be able to see it after doing
> > lredir del e:
> > in DOSEMU at the DOS prompt, because the CDROM default redirection put
> > in autoexec.bat overrides it.
> > 
> > Why were you looking at F: though?
> > 
> > Bart
> 
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