Date: Mon, 06 Jul 1998 08:50:24 -0700 From: Mike Smith <mike@smith.net.au> To: Andrzej Bialecki <abial@nask.pl> Cc: freebsd-current@FreeBSD.ORG Subject: Re: FreeBSD in less than 4MB RAM Message-ID: <199807061550.IAA03457@antipodes.cdrom.com> In-Reply-To: Your message of "Mon, 06 Jul 1998 10:32:14 %2B0200." <Pine.NEB.3.95.980706095339.16181F-100000@korin.warman.org.pl>
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> Hi, > > This is slightly more general question than in the Subject. > > First issue is: what would it take to squeeze any useful combination of > kernel, init plus two-three (small) user programs in 4MB? Which > (dispensable) parts of the kernel require so much space? After removing > all I could think of (leaving FFS, fd0, and ed0, though) the kernel size > is still about 700kB big, and quite another question is how this > translates into running size... try "du *.o | sort -n" in your compile directory. > The second issue is this: currently we're unable to boot (using BIOS) and > mount as / other filesystems than FFS, NFS and CD9660. It would be great > if we could use MSDOSFS as well (using special version of biosboot, with > FAT support compiled-in instead of FFS). Device nodes would be on DEVFS. All you have to do is add the mountroot stuff to MSDOSFS - nobody would complain if you did. > What for? This could help get rid of fbsdboot.exe and related troubles - > we could just directly start and run (and install!) on MSDOS partition. Permissions would suck. -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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