From mboxrd@z Thu Jan  1 00:00:00 1970
From: ron minnich <rminnich@lanl.gov>
To: 9fans@cse.psu.edu
Message-ID: <Pine.LNX.4.44.0311091022460.29566-100000@maxroach.lanl.gov>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Subject: [9fans] fdisk/prep in bootdir.
Date: Sun,  9 Nov 2003 10:28:32 -0700
Topicbox-Message-UUID: 83872d34-eacc-11e9-9e20-41e7f4b1d025


Here's the trivial C program if you don't like /bin/rc in bootdir, but
don't mind fdisk and prep in there. Yeah yeah yeah doesn't use argv etc.,
it is just a fooling around thing. I think if we're really going to worry
about kernel boot image size, a lot more has to change than not putting rc
into bootdir.

This is working fine on my little EPIA nodes with CF.


#include <u.h>
#include <libc.h>

/* get the disks set up */
/* later, we'll walk nvrtab and do all the nvr devices */
void
main(int argc, char *argv[])
{
        Waitmsg *kid;
        char errbuf[128];
        int fd;
        fd = open("/dev/sdC0/ctl", OWRITE);
        if (fd < 0) {
                errstr(errbuf, sizeof(errbuf));
                exits(errbuf);
	}

        if (fork() == 0) {
                dup(fd, 1);
                execl("/bin/disk/fdisk", "fdisk", "-p", "/dev/sdC0/data",
					0);
        }

        /* wait for that one to return */
        kid = wait();
        if (strlen(kid->msg)) {
                exits(kid->msg);
        }

        if (fork() == 0) {
                dup(fd, 1);
                execl("/bin/disk/prep", "prep", "-p", "/dev/sdC0/plan9",
				0);
        }
}



ron