Problems with autofs mounting with ypbind

[silvrhand]

Interesting problem,

It was working with gentoo 1.1, I upgraded a new machine to gentoo1.2 and I can't get autofs to work: It seems to start things but the automount daemon just dies or never starts without any errors..

I tried to remerge autofs to see if something was wrong but still no luck, it just seems automount bombs out. I'm not really familiar with the startup scripts yet, so I'm struggling with this if someone could help out I would appreciate it.

Not sure why it's not working..

+ echo -e ' * Starting automounter...'
* Starting automounter...
+ getmounts
+ '[' -e /usr/bin/ypcat ']'
+ read cmd timeout mnt rest
ypcat -k auto.master 2>/dev/null | wc -l
++ ypcat -k auto.master
++ wc -l
+ '[' 10 -gt 0 ']'
+ ypcat -k auto.master
+ read dir map options
echo "$map" | cut -c1
++ echo auto.n.sun4-4.1
++ cut -c1
+ '[' '!' -z /n.sun4-4.1 -a '!' -z auto.n.sun4-4.1 -a xa '!=' x- ']'
echo "$map" | sed -e 's/^auto_/auto./'
++ echo auto.n.sun4-4.1
++ sed -e 's/^auto_/auto./'
+ map=auto.n.sun4-4.1
+ echo
+ grep -- -t
echo "$options" | sed -e '
s/--*t\(imeout\)*[ \t]*[0-9][0-9]*//g
s/\(^\|[ \t]\)-/\1/g'
++ echo ''
++ sed -e '
s/--*t\(imeout\)*[ \t]*[0-9][0-9]*//g
s/\(^\|[ \t]\)-/\1/g'
+ options=
+ echo '/usr/sbin/automount /n.sun4-4.1 yp auto.n.sun4-4.1 '
+ read dir map options
+ echo /n.sun4-4.1
+ grep -v -- --timeout
+ rest=yp auto.n.sun4-4.1
+ mnt=/n.sun4-4.1
+ timeout=
+ echo -n ' /n.sun4-4.1'
/n.sun4-4.1echo $mnt | sed 's/\//./g'
++ echo /n.sun4-4.1
++ sed 's/\//./g'
+ pidfile=/var/run/autofs.n.sun4-4.1.pid
+ start-stop-daemon --start --pidfile /var/run/autofs.n.sun4-4.1.pid --quiet --exec /usr/sbin/automount -- /n.sun4-4.1 yp auto.n.sun4-4.1

The process id in /var/run/autofs.* are all screwy also, something is really borked hehe..

jstrange-linux run # cat autofs.n.sun4-4.1.pid

/n.sun4-4.1
jstrange-linux run # pwd
/var/run
jstrange-linux run #

[silvrhand]

Still can't get it to work.

Is anyone running the latest autofs and ypbind with the automount maps as yp maps?

I can't seem to figure out why it's not working.

[silvrhand]

Okay getting pissed now, any help would be GREATLY appreciated.. This makes 0 sense unless something is majorly broken.

new kernel - nope
stock kernel - nope
start automount by hand - nope

strace automount

jstrange-linux / # usr/sbin/automount /us yp auto.us rsize=8192,wsize=8192
jstrange-linux / # mkdir /us
jstrange-linux / # usr/sbin/automount /us yp auto.us rsize=8192,wsize=8192
jstrange-linux / # cd /us/jstrange
-bash: cd: /us/jstrange: No such file or directory
jstrange-linux / # ypcat passwd | grep jstrange
jstrange:A7WCPF8X/WRcQ:13364:12:John W Strange:/us/jstrange:/bin/sh
jstrange-linux / # ypcat -k auto.us | grep jstrange
jstrange mixer:/vol/vol0/dis/&
jstrange-linux / # ypcat passwd | grep jstrange
jstrange:A7WCPF8X/WRcQ:13364:12:John W Strange:/us/jstrange:/bin/sh

Here is the strace:

jstrange-linux / # strace usr/sbin/automount /us yp auto.us rsize=8192,wsize=8192
execve("usr/sbin/automount", ["usr/sbin/automount", "/us", "yp", "auto.us", "rsize=8192,wsize=8192"], [/* 36 vars */]) = 0
brk(0) = 0x804d3a8
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40016000
open("/etc/ld.so.preload", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
close(3) = 0
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=50654, ...}) = 0
old_mmap(NULL, 50654, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40017000
close(3) = 0
open("/lib/libdl.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\234\34"..., 1024) = 1024
fstat64(3, {st_mode=S_IFREG|0755, st_size=14490, ...}) = 0
old_mmap(NULL, 12396, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40024000
mprotect(0x40026000, 4204, PROT_NONE) = 0
old_mmap(0x40026000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x40026000
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\3\0\1\0\0\0\250\224"..., 1024) = 1024
fstat64(3, {st_mode=S_IFREG|0755, st_size=1426068, ...}) = 0
old_mmap(NULL, 1242144, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40028000
mprotect(0x4014d000, 42016, PROT_NONE) = 0
old_mmap(0x4014d000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x124000) = 0x4014d000
old_mmap(0x40154000, 13344, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40154000
close(3) = 0
munmap(0x40017000, 50654) = 0
geteuid32() = 0
chdir("/") = 0
fork() = 7129
--- SIGCHLD (Child exited) ---
_exit(0) = ?

[cawhitepdx]

But I did have to change one thing in the /etc/init.d/autofs script. I added a "after ypbind" in the depend section. Otherwise only some of my maps would get bound at startup. Things would work just fine if I stop/started autofs after the system was fully booted though.

A few things:
Did you remember to compile in autofs support into your kernel? I am using the v4 stuff.
If you compiled the automounter support as a module, is it loaded?
Can you ypcat the auto.master map?
Does NFS otherwise work if you make connections manually and not through the automounter?

thx,
--chad

[silvrhand]

autofs has been compiled in 2.4.19-r7, 2.5.27, 2.4.18, both normal and ehanced v4 versions, and still no luck.

ypbind is up and running, I can ypcat -k auto.master, it actually sees them and starts the automount daemon but it just exits with no error message..

munmap(0x40017000, 50654) = 0
geteuid32() = 0
chdir("/") = 0
fork() = 7129
--- SIGCHLD (Child exited) ---
_exit(0) = ?

Yes I can manually mount the directory across NFS with no problems.

[cawhitepdx]

Thats pretty strange. I didn't have any trouble getting it to work but my current nfs server is also linux (not Gentoo though.) What OS is your NFS server? I seem to remember having a similar problem a while ago when I was attaching to an HPUX nfs server as automount seems to use a different nfsver by default from mount. I think it was that automount defaulted to nfsv3 while normal mount defaults to nfsv2 and the Linux kernel at that point at least wasn't entirely compatible with HP's nfsv3. Just for grins you might try manually starting automount and adding a nfsver=2 after your rsize and wsize options. Or if it still doesn't work try nfsver=3 as I might be remembering wrong

I was going to have you look in your nsswitch.conf as that would be the usual Solaris answer but my system has "files" in the automounter line and it is working, so that must not be used in Gentoo..

Could you run the strace for starting automount with a -f so I can see what that last fork() is doing before the process exits?

thx,
--chd
[/quote]

[hifi]

Hi!

I've got the same problems, i've got this in my logs, maybe someone can help us, to find yperr_string

Jul 27 12:13:09 pc213.sci.graz automount[21496]: cannot open lookup module yp (/usr/lib/autofs//lookup_yp.so: undefined symbol: yperr_string)

cu Robert

[cawhitepdx]

Did you guys forget to emerge yp-tools as well as ypbind?

Mine works, I have ypbind 1.11-r1 and yp-tools 2.7.

thx,
--chd

[hifi]

[silvrhand]

The NFS server is a Netapp F840, we have about 10 of them here with 0 problems. This problem only came up after I installed the 1.3 CD on my new machine.

jstrange-linux autofs # strace -f /usr/sbin/automount /us yp auto.us rsize=8192,nfsver=2 2>/tmp/log
jstrange-linux autofs # cat /tmp/log
execve("/usr/sbin/automount", ["/usr/sbin/automount", "/us", "yp", "auto.us", "rsize=8192,nfsver=2"], [/* 36 vars */]) = 0
brk(0) = 0x804d3a8
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40016000
open("/etc/ld.so.preload", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
close(3) = 0
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=51260, ...}) = 0
old_mmap(NULL, 51260, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40017000
close(3) = 0
open("/lib/libdl.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\234\34"..., 1024) = 1024
fstat64(3, {st_mode=S_IFREG|0755, st_size=14490, ...}) = 0
old_mmap(NULL, 12396, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40024000
mprotect(0x40026000, 4204, PROT_NONE) = 0
old_mmap(0x40026000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x40026000
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\3\0\1\0\0\0\250\224"..., 1024) = 1024
fstat64(3, {st_mode=S_IFREG|0755, st_size=1426068, ...}) = 0
old_mmap(NULL, 1242144, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40028000
mprotect(0x4014d000, 42016, PROT_NONE) = 0
old_mmap(0x4014d000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x124000) = 0x4014d000
old_mmap(0x40154000, 13344, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x40154000
close(3) = 0
munmap(0x40017000, 51260) = 0
geteuid32() = 0
chdir("/") = 0
fork() = 31622
[pid 31622] getpid() = 31622
[pid 31622] setpgid(0, 0 <unfinished ...>
[pid 31621] _exit(0) = ?
[pid 31622] <... setpgid resumed> ) = 0
[pid 31622] getpgrp() = 31622
[pid 31622] open("/dev/null", O_RDWR) = 3
dup2(3, 0) = 0
dup2(3, 1) = 1
dup2(3, 2) = 2
close(3) = 0
brk(0) = 0x804d3a8
brk(0x804d538) = 0x804d538
brk(0x804e000) = 0x804e000
brk(0x8051000) = 0x8051000
time([1027949844]) = 1027949844
open("/etc/localtime", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=1267, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40017000
read(3, "TZif\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\4\0\0\0\4\0"..., 4096) = 1267
close(3) = 0
munmap(0x40017000, 4096) = 0
getpid() = 31622
rt_sigaction(SIGPIPE, {0x40100994, [], 0x4000000}, {SIG_DFL}, = 0
socket(PF_UNIX, SOCK_DGRAM, 0) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
connect(3, {sin_family=AF_UNIX, path="/dev/log"}, 16) = -1 ENOENT (No such file or directory)
close(3) = 0
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, = 0
time([1027949844]) = 1027949844
getpid() = 31622
rt_sigaction(SIGPIPE, {0x40100994, [], 0x4000000}, {SIG_DFL}, = 0
socket(PF_UNIX, SOCK_DGRAM, 0) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
connect(3, {sin_family=AF_UNIX, path="/dev/log"}, 16) = -1 ENOENT (No such file or directory)
close(3) = 0
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, = 0
time([1027949844]) = 1027949844
getpid() = 31622
rt_sigaction(SIGPIPE, {0x40100994, [], 0x4000000}, {SIG_DFL}, = 0
socket(PF_UNIX, SOCK_DGRAM, 0) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
connect(3, {sin_family=AF_UNIX, path="/dev/log"}, 16) = -1 ENOENT (No such file or directory)
close(3) = 0
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, = 0
open("/usr/lib/autofs//lookup_yp.so", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \10\0\000"..., 1024) = 1024
fstat64(3, {st_mode=S_IFREG|0755, st_size=7023, ...}) = 0
old_mmap(NULL, 7688, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x40017000
mprotect(0x40018000, 3592, PROT_NONE) = 0
old_mmap(0x40018000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x40018000
close(3) = 0
munmap(0x40017000, 7688) = 0
brk(0x8054000) = 0x8054000
time([1027949844]) = 1027949844
getpid() = 31622
rt_sigaction(SIGPIPE, {0x40100994, [], 0x4000000}, {SIG_DFL}, = 0
socket(PF_UNIX, SOCK_DGRAM, 0) = 3
fcntl64(3, F_SETFD, FD_CLOEXEC) = 0
connect(3, {sin_family=AF_UNIX, path="/dev/log"}, 16) = -1 ENOENT (No such file or directory)
close(3) = 0
rt_sigaction(SIGPIPE, {SIG_DFL}, NULL, = 0
_exit(1) = ?

[SamC]

It's possible I've got things misconfigured, but I seem to be seeing the same thing. The contents of the autofs pid file seems pretty strange:

[Uffe]

I'm unfamiliar with ebuilds but here is what I notice (I ran into the missing yperr_string symbol too)...
yperr_string() is in libnsl (/lib/libnsl.so.1 -> libnsl-2.2.5.so, provided by glibc). It looks like autofs' configure looks for yp_match() in libnsl but the test fails because the ebuild sets this:

[brian33x51]

Not sure if this is applicable, but I ended up adding these lines to my auto.master to get things to work:

/net yp:auto.net
/misc yp:auto.misc


What's strange is that I don't need to add these lines in my redhat 7.x and 8.0 boxes for them to pick up the yp maps automagically.