Can't install new SW to a full Jail

[spargopolis]

Fairly new to nas4free, freeBSD, and very new to Jails.

My host OS has nas4free 9.1 installed and running, I have a single hard drive mapped to /mnt running ZFS.

I installed the "theBrig". All seemed to go well. I have two jails both running nas4free 9.1. One is slim and the other is full. Both run, but I have stopped the slim one. The full jail is mapped to "/mnt/MediaPool0/Jail/gitJailFull" (if I understand correctly, this is where it's virtual "/" is. The full jail runs fine, web interface works, SSH works, SMB works, etc.

I believe that having a full jail will allow me to install addition S/W (since this is what I would like to do), but please correct me if I'm wrong. Specifically I want to install a git server and possibly other apps in the full jail. When I try, I get a similar behaviour to when I tried to install git on the host nas4free image, which is to say lots of errors. i.e.

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nas4free: git_pkgs # pkg_add -r git
Fetching ftp://ftp.freebsd.org/pub/FreeBSD/ports/amd64/packages-9.1-release/Latest/git.tbz... Done.
Fetching ftp://ftp.freebsd.org/pub/FreeBSD/ports/amd64/packages-9.1-release/All/perl-5.14.2_2.tbz...
/var: write failed, filesystem is full
lib/perl5/5.14.2/pod/perldiag.pod: Write failed
lib/perl5/5.14.2/pod/perldsc.pod: Write failed
lib/perl5/5.14.2/pod/perlebcdic.pod: Write to restore size failed
lib/perl5/5.14.2/pod/perlembed.pod: Write to restore size failed
lib/perl5/5.14.2/pod/perlepoc.pod: Write to restore size failed
... lots of these

What I don't understand are these "filesystem full" errors, when the entire jailed nas is supposedly mounted on "mnt/MediaPool0/Jail/gitJailFull", which should map to my physical hard drive, not the embedded USB stick? Note the hard drive reports 366 GB free.

Thanks for your interest. Any help would be appreciated.

[spargopolis]

A bit more info... which confirms the physical location of the full jail.

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hostnas: ~ # jls
   JID  IP Address      Hostname                      Path
     7  192.168.1.202   gitJailFull.local             /mnt/MediaPool0/Jail/gitJailFull

[raulfg3]

do you log inside your jail?

eg: jexec 7 csh in your example?

[alexey123]

This line

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nas4free: git_pkgs # pkg_add -r git

say: You tried install software from main host. This way not correct. For install software into jail, you need type commands inside a jail
As Raul says - enter into jail

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jexec gitJailFull csh

and install software

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pkg_add -r git

[spargopolis]

Hi Guys,

Sorry for the slow reply; my Internet has been down.

Thanks for the suggestions. Earlier I thought by SSH'ing in the Jail IP address I would already be running inside the Jail. But apparently not.

I typed:

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spargonas: ~ # jls
   JID  IP Address      Hostname                      Path
     7  192.168.1.202   gitJailFull.local             /mnt/MediaPool0/Jail/gitJailFull
spargonas: ~ # jexec 7 csh
root@gitJailFull:/ # pwd
/
root@gitJailFull:/ # pkg_add -r git
Fetching ftp://ftp.freebsd.org/pub/FreeBSD/ports/amd64/packages-9.1-release/Latest/git.tbz... Done.
...
Removing stale symlinks from /usr/bin...
    Skipping /usr/bin/perl
    Skipping /usr/bin/perl5
Done.
...
root@gitJailFull:/ # git --version
git version 1.8.0

So cool git is installed.

Which brings up the next question . The data I want to place under git source control physically resides on my hard disk here: "/mnt/media/...". Since my Jail is mounted/rooted at "/mnt/MediaPool0/Jail/gitJailFull", as far as I know I can't see the data. Is there any way to make the data accessable to this Jail (or another one I create), or does it need copied to under the root of the Jail? Would a symbolic link possibly work? Sorry for the noob question.

[raulfg3]

Is there any way to make the data accessable to this Jail

yes, configte fstab, see my example: viewtopic.php?f=79&t=3894#p20142

[alexey123]

Also you can simple copy needed data from nas4free, if it have small size.

[spargopolis]

Hi,

My earlier question was a bit premature. It turns out I had added some mount points in the fstab already as per the instructions to install TheBrig... I had just forgotten, i.e.

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spargonas: ~ # ll /etc/fs*
-rw-r--r--  1 root  wheel   50 Oct  7 01:52 /etc/fstab
-rw-r--r--  1 root  wheel  376 Oct  7 05:42 /etc/fstab.gitJail
-rw-r--r--  1 root  wheel  308 Oct  7 05:42 /etc/fstab.gitJailFull
spargonas: ~ # cat /etc/fstab.gitJailFull
/mnt/media/pictures /mnt/media/Jail/gitJailFull/mnt/media/pictures nullfs rw 0 0
/mnt/media/videos /mnt/media/Jail/gitJailFull/mnt/media/videos nullfs rw 0 0 
/mnt/media/music /mnt/media/Jail/gitJailFull/mnt/media/music nullfs rw 0 0 
/mnt/MediaPool0/Jail/conf/ports/ /mnt/MediaPool0/Jail/gitJailFull/usr/ports/ nullfs ro 0 0

Note that I have many subfolders under each of these mount source points.. e.g.

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spargonas: ~ # ll /mnt/media/pictures/
total 17
drwxrwxrwx  45 root  wheel  45 Sep  7 03:42 2010/
drwxrwxrwx  43 root  wheel  43 Sep  7 04:39 2011/
drwxrwxrwx  79 root  wheel  79 Sep  7 08:49 2012/
drwxrwxrwx  58 root  wheel  58 Oct 13 02:51 2013/
drwxrwxrwx   2 root  wheel   2 Sep  4 06:50 2014/

Now when I enter the Jail, I do see the mount point, however I don't have any of the content below this. i.e.

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spargonas: ~ # jls
   JID  IP Address      Hostname                      Path
    1  192.168.1.202   gitJailFull.local             /mnt/MediaPool0/Jail/gitJailFull
spargonas: ~ # jexec 1 tcsh
root@gitJailFull:/ # ll /mnt/media/pictures/
total 0

Is there a way to create a recursive mount point, such that I see all the files/folders below the ? From what I understand of the mount command, this should be the default behaviour.

[raulfg3]

fstab and jail are not equal:

/mnt/media/pictures /mnt/media/Jail/gitJailFull/mnt/media/pictures nullfs rw 0 0

see: /mnt/media/pictures is where you have your original share folder pictures.
/mnt/media/Jail/gitJailFull/mnt/media/pictures is the folder pictures inside the jail gitJailFull , where you want to mount pictures. (But is incorrect because is not in the correct path of jail)

but you say that do not see in: /mnt/MediaPool0/Jail/gitJailFull ; see MediaPool0


to work your fstab must be:

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/mnt/media /mnt/MediaPool0/Jail/gitJailFull/mnt/media nullfs rw 0 0

And you must create folder media prior to work:

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mkdir: /mnt/MediaPool0/Jail/gitJailFull/mnt/media

from shell outside the jail, once done , stop your jail and re-start.

this time inside the jail if you go to

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cd /mnt/media

and do

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ls- l

you can see your pictures, videos and music folders correctly mounted.

[spargopolis]

Hi,

Yes that was the problem, thanks very much! Now I can see all the media content inside the Jail, and have git installed.

Hopefully my last issue is this; I want to use git on my LAN to backup data. Therefore I require network access to the Jail. When I try:

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root@gitJailFull:/ # ping 192.168.1.101
ping: socket: Operation not permitted
root@gitJailFull:/ # whoami
root
root@gitJailFull:/ # which ping
/sbin/ping
root@gitJailFull:/ # 

I did do some Googling and I think I need to update my /etc/rc.conf file. It's currently set to:

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root@gitJailFull:/ # cat /etc/rc.conf 
sendmail_enable="NONE"
syslogd_flags="-ss"
rpc_bind="NO"
network_interfaces=""
cron_flags="$cron_flags -J 15"
root@gitJailFull:/ # 

A pointer to a thread on this subject would be great. Thanks very much for your help!

[raulfg3]

you need to active global atribute: Route only TCP/IP within a jail
in the brig webgui.

jail1.jpg