Having problems with init

[Dallas Clement]

Hi All,

I'm struggling to get init to find /etc/init.d/inittab and or execute
/etc/init.d/rcS.  It just sits and waits on nanosleep.  I have
included the strace output below.

I'm using version 1.7.0 ( I know it's a bit old, but I'm not able to
upgrade it for this project ).

I don't think I'm doing anything too out of the ordinary.  I am able
to successfully NFS mount my root file system.  I execute the
following from my initrd / linuxrc:

	/sbin/ifconfig eth1 192.168.1.40 up
	mount -o nolock 192.168.1.5:/home/dallasc/development/cs/BTUS/hddroot/img /mnt
	cd /mnt
	mkdir -p initrd
	ls .
	/sbin/pivot_root . initrd
	if [ $? != 0 ]; then
		echo "pivot root failed"
	else
		exec chroot . /usr/local/bin/strace /sbin/init \
<dev/console >dev/console 2>&1
		umount /initrd

If I replace /sbin/init with /bin/sh, I get a shell prompt and I can
look at my NFS mounted root fs.  So I know that the exec is working
and I can execute binaries over NFS.

init however just sits and waits forever on nanosleep.  I don't see it
attempt to open the inittab file or the rcS file.  Could it perhaps be
a UID or PID problem?

Any help, much appreciated.

Thanks,

Dallas

execve("/sbin/init", ["/sbin/init"], [/* 8 vars */]) = 0
brk(0)                                  = 0xde000
uname({sys="Linux", node="(none)", ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x4001d000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=7909, ...}) = 0
mmap2(NULL, 7909, PROT_READ, MAP_PRIVATE, 3, 0) = 0x4001e000
close(3)                                = 0
open("/lib/libm.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\0342\0\000"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=739248, ...}) = 0
mmap2(NULL, 712856, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3,
0) = 0x40026000
mprotect(0x400cc000, 28672, PROT_NONE)  = 0
mmap2(0x400d3000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa5) = 0x400d3000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\340J\1\000"...,
512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1481034, ...}) = 0
mmap2(NULL, 1237404, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE,
3, 0) = 0x400d5000
mprotect(0x401f7000, 28672, PROT_NONE)  = 0
mmap2(0x401fe000, 12288, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x121) = 0x401fe000
mmap2(0x40201000, 8604, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40201000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0x40020000
syscall_983045(0x400204a0, 0x400256f4, 0x40020b78, 0x40025058, 0x40,
0x40025000, 0, 0xf0005, 0x40025738, 0x1, 0, 0xbe87cbbc, 0, 0xbe87c930,
0x88, 0x40002290, 0x20000010, 0x400204a0, 0, 0, 0xdbe0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0) = 0
mprotect(0x401fe000, 8192, PROT_READ)   = 0
mprotect(0x400d3000, 4096, PROT_READ)   = 0
munmap(0x4001e000, 7909)                = 0
getpid()                                = 629
getuid32()                              = 0
brk(0)                                  = 0xde000
brk(0x109000)                           = 0x109000
mmap2(NULL, 401408, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x40204000
munmap(0x40204000, 401408)              = 0
write(2, "BusyBox v1.15.3 (2010-04-23 20:1"..., 41BusyBox v1.15.3
(2010-04-23 20:10:06 JST)) = 41
write(2, " multi-call binary\n", 19 multi-call binary
)    = 19
write(2, "\nUsage: ", 8
Usage: )                = 8
write(2, "init", 4init)                     = 4
write(2, " ", 1 )                        = 1
write(2, "\n\nInit is the parent of all proc"..., 37

Init is the parent of all processes) = 37
write(2, "\n\n", 2

)                     = 2
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({2592000, 0},