Linux floppy won't boot, DOS floppy will

Linux floppy won't boot, DOS floppy will

Post by Dan Tenenba » Sun, 04 Jan 1998 04:00:00



I just got a new motherboard (Alton MLB Universal Pentium Vx)
and CPU (Pentium 166 MMX) and put my old hard drive in this
new system. Everything seems to work fine except that Linux
floppies will not boot. Strangely, DOS floppies will boot,
and non-bootable floppies cause the appropriate message
about non-system disks to be displayed. However, a linux
bootable floppy (either generated by LILO or by
"cat /vmlinuz > /dev/fd0") won't boot; the system checks
the floppy drive for a second and then ignores it and boots
off of the hard drive. This is very annoying as it means
I can't change my kernel, because if I do and I*something
up, I can't boot from a floppy to fix it.

Has anyone heard of this problem?

If it can't be fixed, I'd be satisfied if I could
boot from a floppy using LILO, but I haven't had any luck.
I have created a section in /etc/lilo.conf with the image=
set to /dev/fd0. When I try and boot using this section,
it goes into an infinite loop of "unexpected EOF" messages.

If someone could send me a working lilo.conf section for
booting from a floppy I would really appreciate it.

Thanks in advance,
Dan Tenenbaum

--

                        http://www.veryComputer.com/

 
 
 

Linux floppy won't boot, DOS floppy will

Post by John Bep » Tue, 06 Jan 1998 04:00:00


# I just got a new motherboard (Alton MLB Universal Pentium Vx)
# and CPU (Pentium 166 MMX) and put my old hard drive in this
# new system. Everything seems to work fine except that Linux
# floppies will not boot. Strangely, DOS floppies will boot,
# and non-bootable floppies cause the appropriate message
# about non-system disks to be displayed. However, a linux
# bootable floppy (either generated by LILO or by
# "cat /vmlinuz #  /dev/fd0") won't boot; the system checks
# the floppy drive for a second and then ignores it and boots
# off of the hard drive.

  I'm experiencing the same problem.  If anyone can recommend
  a course of action for us to take, it would be appreciated.

>Thanks in advance,
>Dan Tenenbaum


 Thanks from me, too.

--


 
 
 

Linux floppy won't boot, DOS floppy will

Post by Christopher R. Herte » Tue, 06 Jan 1998 04:00:00


Try disabling the chip cache via CMOS.

It sounds strange, but I suggested it to Dan (the originator of this
thread) and it worked!  I have the same sort of problem on my system.
I get a CRC error on any compressed OS that I try to load (including
the QNX demo floppy).  Disabling internal cache "fixes" the problem.

I think I must have heard this one on the Debian mailing list.

BTW, my CPU is an AMD 486 so the problem isn't specific to a model or
brand of chip.

Weird, huh?

Chris Hertel -)-----




> # I just got a new motherboard (Alton MLB Universal Pentium Vx)
> # and CPU (Pentium 166 MMX) and put my old hard drive in this
> # new system. Everything seems to work fine except that Linux
> # floppies will not boot. Strangely, DOS floppies will boot,
> # and non-bootable floppies cause the appropriate message
> # about non-system disks to be displayed. However, a linux
> # bootable floppy (either generated by LILO or by
> # "cat /vmlinuz #  /dev/fd0") won't boot; the system checks
> # the floppy drive for a second and then ignores it and boots
> # off of the hard drive.

>   I'm experiencing the same problem.  If anyone can recommend
>   a course of action for us to take, it would be appreciated.

> >Thanks in advance,
> >Dan Tenenbaum

>  Thanks from me, too.

> --


--
Christopher R. Hertel -)-----                   University of Minnesota

 
 
 

1. Newbie: CONFIGURE'd boot floppy - won't boot

I successfully performed a UMSDOS install of the Slackware distribution
(from floppy disks A,AP,Q,U) on my laptop:
   Epson 4SLC/25  (486 25MHz)
   4Mb RAM
   120 MB HD

After the installation completed, it prompted me to create a boot floppy,
which I did (and have re-tried several times, but to no avail).

This boot floppy does not boot - the computer goes through the POST, spins
the floppy once, then just sits there dead in the water.

BTW, I formatted this floppy under DOS both with and without /S;  it didn't
make any difference.

BTW also, I am trying to use the idekern kernel (at least until I can get
a regular boot off my boot floppy).

Any ideas?  The Installation-HOWTO isn't very specific about this kind of
problem.

Question:  If I were to boot using the installation boot/root disks, and
           did an "ls" on this troubled boot floppy, what (if anything)
           should I see?

Many thanks!

-Gerard

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