[syslinux] boot speed
Jim Murphy
friartek at xnet.com
Wed May 29 13:01:40 PDT 2002
On Sun, May 26, 2002 at 11:55:20AM -0700, H. Peter Anvin wrote:
> Jim Murphy wrote:
> > On Sun, May 26, 2002 at 08:48:48AM +1000, websol1 wrote:
>
> Most BIOSes are highly cantankerous booting off extended-format
> floppies. They may not be able to read more than a single sector at a
> time, and then have to wait for the floppy to rotate a full turn to read
> the next sector. SYSLINUX will fall back on this mode of operation if
> it has to. Note that *many* BIOSes can't boot extended-format floppies
> at all.
>
> > BTW, I had an earlier posting on serial output as a console with no
> > video card installed. The message file only prints 15 characters on
> > each line then wraps to the next line. Everything after the message
> > file prints ok. Any ideas?
> >
>
> Yes, the problem is that SYSLINUX gets the size of each line from the
> BIOS. Apparently your BIOS leaves those variables containing garbage;
> in particular, the line width is set to 15.
>
> Not much to do about, I'm afraid. I might keep it in mind if I end up
> messing with that code, to handle wraparound differently for the serial
> port.
Would be appreaciated.
>
On the speed issues: It speeds up greatly by using the -s option when
installing syslinux on the floppy. If I have time I'll try to create
and boot a 1.44MB floppy to compare speeds.
Sorry - need to get a little more experience using syslinux.
Thanks,
Jim
--
| Jim Murphy |
| friartek at xnet.com |
| Debian/RedHat/FloppyFW|
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