Re: [CentOS] automounter with users home directories on centos 7. [resolved]

[Jason Welsh]

sunnuva scruffy-looking nerf herder!!

/etc/auto.home   was executable..   so it failed..
I did chmod -x /etc/auto.home   and restarted autofs
and now it works..

thanks for the help!

Jason

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Re: [CentOS] automounter with users home directories on centos 7.

[Jason Welsh]

AHA!!  now I think we are getting somewhere! ;)

Mount point: /home

source(s):

  instance type(s): program
  map: /etc/auto.home

  no keys found in map  <- bing bing bing!!  I believe this 
means it doesnt like whats in my /etc/auto.home?



s whats wrong with:

[root@server2 etc]# cat /etc/auto.home
*-rw,soft,intr192.168.0.110:/home/&
[root@server2 etc]#

ive tried it with tabs and with spaces with the host name,  with the ip 
address..


in the logs, I see
 Sep 11 09:41:00 server2 automount[3609]: expire_proc: exp_proc = 
140717501646592 path /home

Sep 11 09:41:00 server2 automount[3609]: st_expire: state 1 path /-
Sep 11 09:41:00 server2 automount[3609]: expire_proc: exp_proc = 
140717424346880 path /-
Sep 11 09:41:00 server2 automount[3609]: expire_cleanup: got thid 
140717501646592 path /home stat 0
Sep 11 09:41:00 server2 automount[3609]: expire_cleanup: sigchld: exp 
140717501646592 finished, switching from 2 to 1
Sep 11 09:41:00 server2 automount[3609]: st_ready: st_ready(): state = 2 
path /home
Sep 11 09:41:00 server2 automount[3609]: expire_cleanup: got thid 
140717424346880 path /- stat 0
Sep 11 09:41:00 server2 automount[3609]: expire_cleanup: sigchld: exp 
140717424346880 finished, switching from 2 to 1
Sep 11 09:41:00 server2 automount[3609]: st_ready: st_ready(): state = 2 
path /-

Sep 11 09:41:01 server2 automount[3609]: handle_packet: type = 3
Sep 11 09:41:01 server2 automount[3609]: handle_packet_missing_indirect: 
token 76, name jason, request pid 3752
Sep 11 09:41:01 server2 automount[3609]: attempting to mount entry 
/home/jason
Sep 11 09:41:01 server2 automount[3609]: lookup_mount: lookup(program): 
looking up jason
Sep 11 09:41:01 server2 automount[3609]: lookup(program): lookup for 
jason failed



regards,
Jason





On 09/11/2015 09:20 AM, John Hodrien wrote:

automount -m



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Re: [CentOS] automounter with users home directories on centos 7.

[John Hodrien]

On Fri, 11 Sep 2015, Jason Welsh wrote:


ok, I have moved home out of the way and restarted automounter..
and now I see the /home directory appear when autofs is started, but there is 
still nothing there..


[root@server2 home]# cd /home
[root@server2 home]# ls
[root@server2 home]# cd jason
-bash: cd: jason: No such file or directory
[root@server2 home]# df -h ./
Filesystem  Size  Used Avail Use% Mounted on
/etc/auto.home 0 0 0- /home
[root@server2 home]#

I still dont see any errors  in the logs on either server.

btw, my uid on both servers is the same.
[root@server2 ~]# id jason
uid=1000(jason) gid=1000(jason) groups=1000(jason),10(wheel)

[root@server1 log]# id jason
uid=1000(jason) gid=1000(jason) groups=1000(jason),10(wheel)


Does "automount -m" show what you expect?

When in doubt, enable DEBUG logging in /etc/sysconfig/autofs, as it's very
verbose about what it's doing if only you ask.

jh
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Re: [CentOS] automounter with users home directories on centos 7.

[Jason Welsh]

ok, I have moved home out of the way and restarted automounter..
and now I see the /home directory appear when autofs is started, but 
there is still nothing there..


[root@server2 home]# cd /home
[root@server2 home]# ls
[root@server2 home]# cd jason
-bash: cd: jason: No such file or directory
[root@server2 home]# df -h ./
Filesystem  Size  Used Avail Use% Mounted on
/etc/auto.home 0 0 0- /home
[root@server2 home]#

I still dont see any errors  in the logs on either server.

btw, my uid on both servers is the same.
[root@server2 ~]# id jason
uid=1000(jason) gid=1000(jason) groups=1000(jason),10(wheel)

[root@server1 log]# id jason
uid=1000(jason) gid=1000(jason) groups=1000(jason),10(wheel)

Jason


On 09/10/2015 07:32 PM, James A. Peltier wrote:


- Original Message -
|
| [root@server2 home]# mount server1:/home/jason /home/jason
| [root@server2 home]#
| [root@server2 home]# ls /home/jason/
| Desktop  Documents  Downloads  Music  mylogfile.txt  Pictures Public
| Templates  Videos
| [root@server2 home]# df -h /home/jason/
| Filesystem   Size  Used Avail Use% Mounted on
| server1:/home/jason  297M   19M  278M   7% /home/jason
| [root@server2 home]#
|
| so it works manually, just not with the automounter.
|
| Jason

Of course, because a manual mount expects a directory to already exist to mount 
on. Automounter creates virtual mount points on demand and so if there are 
existing directories already in place it will fail.

Stop autofs.  Move the /home out of the way.  Start automounter and than do an ls /home.  
It should "just work"



--
*/Jason Welsh/*
*MercuryGate International, Inc.*
Sr. System Administrator
O: 919-469-7670
C: 919-410-7883
_jason.we...@mercurygate.com _

*SMARTER, STRONGER, FASTER, BETTER*
www.mercurygate.com 
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Re: [CentOS] automounter with users home directories on centos 7.

[John Hodrien]

On Thu, 10 Sep 2015, James A. Peltier wrote:


Of course, because a manual mount expects a directory to already exist to
mount on. Automounter creates virtual mount points on demand and so if there
are existing directories already in place it will fail.

Stop autofs.  Move the /home out of the way.  Start automounter and than do
an ls /home.  It should "just work"


autofs works just fine with an existing directory.  It worked fine in
EL4/5/6/7.

Indeed the default config has /misc managed by automount, and that directory
exists.

No?

I use krb5 NFS with EL7 just fine on /home with autofs.

jh
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Re: [CentOS] automounter with users home directories on centos 7.

[James A. Peltier]

- Original Message -
| 
| [root@server2 home]# mount server1:/home/jason /home/jason
| [root@server2 home]#
| [root@server2 home]# ls /home/jason/
| Desktop  Documents  Downloads  Music  mylogfile.txt  Pictures Public
| Templates  Videos
| [root@server2 home]# df -h /home/jason/
| Filesystem   Size  Used Avail Use% Mounted on
| server1:/home/jason  297M   19M  278M   7% /home/jason
| [root@server2 home]#
| 
| so it works manually, just not with the automounter.
| 
| Jason

Of course, because a manual mount expects a directory to already exist to mount 
on. Automounter creates virtual mount points on demand and so if there are 
existing directories already in place it will fail.

Stop autofs.  Move the /home out of the way.  Start automounter and than do an 
ls /home.  It should "just work"

-- 
James A. Peltier
IT Services - Research Computing Group
Simon Fraser University - Burnaby Campus
Phone   : 604-365-6432
Fax : 778-782-3045
E-Mail  : jpelt...@sfu.ca
Website : http://www.sfu.ca/itservices
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Re: [CentOS] automounter with users home directories on centos 7.

[Pete Geenhuizen]

Correct nfs is working and there aren't any firewall issues.

The problem is probably related to the way and steps that automountd 
takes to perform the mount, which is probably related to the fact that 
/home exists.
The quickest way to figure that out is to mv /home to /home- and then 
try automountd again.  When and autofs file system is access automountd 
will check that the mount point exists and create it if not and then 
perform the mount.


In all this you might have to restart autofs on the client.

Pete


On 09/10/15 13:10, Jason Welsh wrote:


[root@server2 home]# mount server1:/home/jason /home/jason
[root@server2 home]#
[root@server2 home]# ls /home/jason/
Desktop  Documents  Downloads  Music  mylogfile.txt  Pictures Public  
Templates  Videos

[root@server2 home]# df -h /home/jason/
Filesystem   Size  Used Avail Use% Mounted on
server1:/home/jason  297M   19M  278M   7% /home/jason
[root@server2 home]#

so it works manually, just not with the automounter.

Jason



On 09/09/2015 05:35 PM, James A. Peltier wrote:

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Re: [CentOS] automounter with users home directories on centos 7.

[Jason Welsh]

[root@server2 home]# mount server1:/home/jason /home/jason
[root@server2 home]#
[root@server2 home]# ls /home/jason/
Desktop  Documents  Downloads  Music  mylogfile.txt  Pictures Public  
Templates  Videos

[root@server2 home]# df -h /home/jason/
Filesystem   Size  Used Avail Use% Mounted on
server1:/home/jason  297M   19M  278M   7% /home/jason
[root@server2 home]#

so it works manually, just not with the automounter.

Jason



On 09/09/2015 05:35 PM, James A. Peltier wrote:

- Original Message -
| Not tried automount with Centos 7 nor with selinux.
|
| With that said autofs relies on nfs mounting to work, so have you
| started there by attempting to manually mount /home?
|
| Another place to look is at the hostname.  I've had problems where auto
| mount doesn't like the short name and insists on using a FQDN, to get
| around that you could try using the IP address rather than the hostname.
|
| On 09/09/15 16:31, Jason Welsh wrote:
| > showmount -e
|
| --
| If money can fix it, it's not a problem.
|   -- Click and Clack the Tappet brothers

/home is a directory by default on all GNU/Linux hosts.  If you plan to use it 
as a mount point then you need to remove the directory and then start autofs 
otherwise there will be a conflict.


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Re: [CentOS] automounter with users home directories on centos 7.

[James A. Peltier]

- Original Message -
| Not tried automount with Centos 7 nor with selinux.
| 
| With that said autofs relies on nfs mounting to work, so have you
| started there by attempting to manually mount /home?
| 
| Another place to look is at the hostname.  I've had problems where auto
| mount doesn't like the short name and insists on using a FQDN, to get
| around that you could try using the IP address rather than the hostname.
| 
| On 09/09/15 16:31, Jason Welsh wrote:
| > showmount -e
| 
| --
| If money can fix it, it's not a problem.
|   -- Click and Clack the Tappet brothers

/home is a directory by default on all GNU/Linux hosts.  If you plan to use it 
as a mount point then you need to remove the directory and then start autofs 
otherwise there will be a conflict.
-- 
James A. Peltier
IT Services - Research Computing Group
Simon Fraser University - Burnaby Campus
Phone   : 604-365-6432
Fax : 778-782-3045
E-Mail  : jpelt...@sfu.ca
Website : http://www.sfu.ca/itservices
Twitter : @sfu_rcg
Powering Engagement Through Technology
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Re: [CentOS] automounter with users home directories on centos 7.

[Pete Geenhuizen]

Not tried automount with Centos 7 nor with selinux.

With that said autofs relies on nfs mounting to work, so have you 
started there by attempting to manually mount /home?


Another place to look is at the hostname.  I've had problems where auto 
mount doesn't like the short name and insists on using a FQDN, to get 
around that you could try using the IP address rather than the hostname.


On 09/09/15 16:31, Jason Welsh wrote:

showmount -e


--
If money can fix it, it's not a problem.
 -- Click and Clack the Tappet brothers

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[CentOS] automounter with users home directories on centos 7.

[Jason Welsh]

Has anyone gotten this to work? Im studing for my rhce and was trying to 
get this to work and its just not working like it shows in the book im 
going by.
So basically I have two centos 7 servers running under kvm.. One is the 
nfs server, one is the nfs client.. I have been mounting up other NFS 
shares on the client and they work fine.. The automounter also seems to 
mount direct mounts fine as well.. But when I try to do home 
directories, it just doesnt work..

on my server (named server1), Im exporting /home as
/homeserver2(rw,sync,no_root_squash)

on my client, ive got
[root@server2 ~]# grep home /etc/auto.master
/home/etc/auto.home --timeout=120
and
[root@server2 ~]# cat /etc/auto.home
*-rw,soft,intrserver1:/home/&
[root@server2 ~]#

and on server1, ive got the selinux enabled, but have the following 
booleans set.

[root@server1 ~]# getsebool -a | grep nfs_
nfs_export_all_ro --> on
nfs_export_all_rw --> on
use_nfs_home_dirs --> on
[root@server1 ~]#

so when I try to switch to my user on server2 (client), I get
[root@server2 ~]# su - user1
Last login: Wed Sep  9 16:25:27 EDT 2015 on pts/0
su: warning: cannot change directory to /home/user1: No such file or 
directory

-bash-4.2$

and theres nothing in the logs that I can find as to why the automount  
isnt working..

[root@server2 ~]# showmount -e server1
Export list for server1:
/home server2

I generated a log (on both server) with sealert, but it shows
found 0 alerts in /var/log/audit/audit.log

any ideas?


--
Jason

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