DSM-G600, DNS-3xx and NSA-220 Hack Forum

rcblackwell · 2008-08-02 03:12:00

I've been tinkering with the install of NUT. During installation a group and user are created as follows;

groupadd nut

adduser -s /bin/false -G nut -H -D ups

After issuing these commands the I see the group and user have been added to the /etc/group and /etc/passwd files. Upon reboot the group and user disappear. Why is this happening?

bq041 · 2008-08-02 04:38:17

Because all the /etc/* information is stored on a RAM Drive. The RAM drive is erased as soon as the unit is powered off. If yu want the information to stick, you need to write it to flash.

rcblackwell · 2008-08-02 05:43:18

bq041 wrote:
Because all the /etc/* information is stored on a RAM Drive. The RAM drive is erased as soon as the unit is powered off. If yu want the information to stick, you need to write it to flash.

I new it was something simple!

Just to make sure I don't screw things up please confirm that would be done using the store-passwd.sh script?

mig · 2008-08-02 09:10:36

Another way to get persistent user and groups is to use a script (executed at boot up) to
over write the /etc/passwd and /etc/goups files with your customized versions of these
files stored on the hard disk (/mnt/HD_a2/<some_dir>)

Since this method does not write to flash, there is very little risk to "screw things up"

bq041 · 2008-08-03 01:55:54

I actually use mig's thoughts to set-up custom samba shares for USB devices. I just put the script in /ffp/start directory.

rcblackwell · 2008-08-03 02:43:11

bq041 wrote:
I actually use mig's thoughts to set-up custom samba shares for USB devices. I just put the script in /ffp/start directory.

I've thought this through and believe this would be the best approach.

Thanks gents.

silversurfer · 2008-08-05 02:08:58

You might as well install fonz samba daemon. I installed mine to the USB disk and put my config file there too. Of course I can't configure it through the web interface now but the web interface doesn't support all the settings that I want anyway.
You would have to kill the standard samba before starting fonz daemon of course. The easiest way to do that is probably with the samba start script. I adjusted mine like this:

Code:

samba_start()
{
    killall nmbd
    killall smbd
    sleep 5
    proc_start /ffp/sbin/smbd
#    proc_start /ffp/sbin/nmbd
}

If you wonder what the hash sign in front of nmbd is for - I just don't want nmbd to run because I don't need netbios name resolution. I have a DNS server here who does the job.
Just add samba users with the "smbpasswd" command. It will write the password file to "/ffp/etc/samba/private/smbpasswd".

rcblackwell · 2008-08-09 03:04:09

silversurfer wrote:
You might as well install fonz samba daemon. I installed mine to the USB disk and put my config file there too.

silversurfer

Thank you for this tid-bit of information. I've installed the latest Samba package and started browsing the comprehensive manual which should make implementation easier. I don't want to break the USB Drive fun_plug or print queue install thus some in depth reading shall be undertaken by this Linux newbie before activating this service.

A question of curiousity:

If I add the "killall nmbd", "killall smbd" and "sleep 5" to the samba_start() routine then my simple mind tells me I should add "sleep 5", "smb restart" to the samba_stop() routine. Assuming of course I'd like to run the DNS' default samba.

Last edited by rcblackwell (2008-08-09 03:10:12)

silversurfer · 2008-08-17 14:18:09

Actually I think that there is no need to add "smb restart" to the samba_stop() routine. Issuing a "smb restart" in the command line will stop the custom smbd and nmbd and then start the standard smbd and nmbd.

DSM-G600, DNS-3xx and NSA-220 Hack Forum

Announcement

#1 2008-08-02 03:12:00

New Group and User Disappears On Reboot

#2 2008-08-02 04:38:17

Re: New Group and User Disappears On Reboot

#3 2008-08-02 05:43:18

Re: New Group and User Disappears On Reboot

bq041 wrote:

#4 2008-08-02 09:10:36

Re: New Group and User Disappears On Reboot

#5 2008-08-03 01:55:54

Re: New Group and User Disappears On Reboot

#6 2008-08-03 02:43:11

Re: New Group and User Disappears On Reboot

bq041 wrote:

#7 2008-08-05 02:08:58

Re: New Group and User Disappears On Reboot

Code:

#8 2008-08-09 03:04:09

Re: New Group and User Disappears On Reboot

silversurfer wrote:

#9 2008-08-17 14:18:09

Re: New Group and User Disappears On Reboot

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