[BusyBox] busybox loads, then i get "NFS root" mount errors

Rob Landley rob at landley.net
Tue Nov 11 18:11:53 UTC 2003


On Tuesday 11 November 2003 08:38, Robert P. J. Day wrote:

> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> RAMDISK: Compressed image found at block 0
> Freeing initrd memory: 2385k freed
> VFS: Mounted root (ext2 filesystem).
> Mounted devfs on /dev.Using fallback suid method
> BusyBox v1.00-pre3 (2003.11.11-10:15+0000) multi-call binary
>
> Usage: busybox [function] [arguments]...
>    or: [function] [arguments]...
>
>         BusyBox is a multi-call binary that combines many common Unix
>         utilities into a single executable.  Most people will create a
>         link to busybox for each function they wish to use, and BusyBox
>         will act like whatever it was invoked as.
>
> Currently defined functions:
>         [, addgroup, adduser, ar, ash, basename, bunzip2, busybox, bzcat,
>         cat, chgrp, chmod, chown, chroot, clear, cp, cpio, crond, crontab,
>         cut, date, dd, delgroup, deluser, df, dirname, dmesg, dpkg,
> dpkg-deb, du, echo, env, false, fgrep, find, free, ftpget, grep, gunzip,
> gzip, halt, head, hostname, hwclock, id, ifconfig, init, insmod, kill,
> killall, klogd, ln, logger, login, logname, ls, lsmod, md5sum, mesg, mkdir,
> mkfifo, mknod, modprobe, more, mount, mv, netstat, nslookup, pidof, ping,
> poweroff, ps, pwd, reboot, reset, rm, rmdir, rmmod, route, rpm, rpm2cpio,
> run-parts, sed, sh, sleep, sort, start-stop-daemon, sync, syslogd, tail,
> tar, telnetd, test, tftp, touch, true, tty, umount, uname, uncompress,
> uniq, unzip, uptime, wc, which, whoami, xargs, yes, zcat

You have to enable initial ramdisk support so that busybox knows what to do 
when it's called as linuxrc.  You'll notice linuxrc isn't in the above list.  
Read the help entries on the config options.

>   ok, i'm baffled.  from what i read, the root filesystem has already been
> mounted, so what's with the NFS-related errors.  as i said, i'm not sure
> how this relates to busybox since it seems to at least get invoked.
> (at boot time, there is a symlink /linuxrc -> bin/busybox that was used
> in the older ramdisk image, so i just left it there.)

The config on the previous busybox build was different.  This one doesn't have 
linuxrc in its app list.

Rob




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