Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > alt.os.development > #8213
| From | "Rod Pemberton" <boo@fasdfrewar.cdm> |
|---|---|
| Newsgroups | alt.os.development |
| Subject | Re: BIOS limits on CD boot ? |
| Date | 2015-06-19 18:15 -0400 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <op.x0hz3wplyfako5@localhost> (permalink) |
| References | <mm0vas$t3l$1@speranza.aioe.org> |
On Fri, 19 Jun 2015 07:44:34 -0400, wolfgang kern <nowhere@never.at> wrote: > Let's assume a bootable OS on an ISO 9660 conform CD/DVD. ... > How many bytes can the BIOS load from such media ? Are you overwriting the same block repeatedly? If so, I'd assume an infinite number. If not, I'd assume you could load until you either ran into the BIOS, video ROMs, or installable ROMs at 640K, or you exceeded available memory on machine with only 512K of memory. > As I figured some time ago, INT13_42 can't load above 1.MB, > but if the BIOS can load 500K to 0x08000... 500K + 32K = 512K + 20K I.e., below 640K, but above 512K which only matters for old machines. > that would be enough for me yet and it could save me from > temporary installing my CD-reader for the boot. That's worth a few bad CDs, yes? ... > So I ask here before I burn several CDs to check if this work. Who uses CDs anymore? Haven't you heard, everyone moved to the "cloud" four years ago, according to Apple computer. LOL. ;-) Rod Pemberton -- It's time to put an end to gun violence! Use a hammer ...
Back to alt.os.development | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-19 13:44 +0200
Re: BIOS limits on CD boot ? "James Harris" <james.harris.1@gmail.com> - 2015-06-19 14:15 +0100
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-19 19:07 +0200
Re: BIOS limits on CD boot ? Melzzzzz <mel@zzzzz.com> - 2015-06-19 19:22 +0200
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-20 08:50 +0200
Re: BIOS limits on CD boot ? "James Harris" <james.harris.1@gmail.com> - 2015-06-20 09:07 +0100
Re: BIOS limits on CD boot ? "James Harris" <james.harris.1@gmail.com> - 2015-06-20 15:43 +0100
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-21 06:10 +0200
Re: BIOS limits on CD boot ? "James Harris" <james.harris.1@gmail.com> - 2015-06-21 18:13 +0100
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-22 09:55 +0200
Re: BIOS limits on CD boot ? "James Harris" <james.harris.1@gmail.com> - 2015-06-22 12:04 +0100
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-30 20:03 +0200
Re: BIOS limits on CD boot ? "James Harris" <james.harris.1@gmail.com> - 2015-07-01 11:19 +0100
Re: BIOS limits on CD boot ? "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-06-19 10:56 -0700
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-20 08:55 +0200
Re: BIOS limits on CD boot ? "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-06-19 18:15 -0400
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-20 09:18 +0200
Re: BIOS limits on CD boot ? "Benjamin David Lunt" <zfysz@fysnet.net> - 2015-06-20 07:43 -0700
Re: BIOS limits on CD boot ? "wolfgang kern" <nowhere@never.at> - 2015-06-21 16:04 +0200
Re: BIOS limits on CD boot ? "James Harris" <james.harris.1@gmail.com> - 2015-06-22 12:13 +0100
csiph-web