[Bio-linux-dev] Path and umask for root on BL6

[Tim Booth]

OK, looking through the rebuilder script for BL, it is set up to
explicitly preserve /root/.profile which suggests that the file should
contain something important.  However, there is no /root/.profile either
in the BL6 image or in the old BL5 image, suggesting it got lost in the
wash some time ago.

I have added the the /root/.profile shown below to the next iteration of
the image.

note - It seems that Ubuntu by default puts /usr/sbin and /sbin into the
path for any admin user as well as for root.  I don't know where you
would put the setting if you happened to want this to happen in the same
way for /opt/local/sbin.

>>>contents of /root/.bashrc

#Because the default umask is 077, and this is rarely suitable for root,
#ensure it is set to the more normal 022
umask 022

# if running bash
if [ -n "$BASH_VERSION" ]; then
    # include .bashrc if it exists
    if [ -f "$HOME/.bashrc" ]; then
        . "$HOME/.bashrc"
    fi
fi

# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

<<<SNIP

On Mon, 2010-05-10 at 15:31 +0100, Tony Travis wrote:
> On 10/05/10 13:07, Tim Booth wrote:
> > [...]
> > % sudo bash
> > # umask
> >
> > You should get the result "0022".  This also applies to gksu.  So could
> > you please confirm that this is the result on your machine and, if so,
> > where you are seeing the more restrictive umask being applied.
> 
> Hello, Tim.
> 
> I normally use "sudo -i", which simulates a root login:
> 
>  > manager at topcat[/manager] sudo bash 
>   [ 3:17PM]
>  > root at topcat:~# umask
>  > 0022
>  > root at topcat:~# exit
>  > manager at topcat[/manager] sudo -i 
>   [ 3:17PM]
>  > root at topcat:~# umask
>  > 0077
> 
> I've copied /etc/skel/.profile to /root/.profile and modified it to 
> override the default umask and added /opt/local/[s]bin to the PATH:
> 
> root at topcat:~# diff -Naur /etc/skel/.profile /root/.profile
> --- /etc/skel/.profile	2010-04-19 03:15:58.000000000 +0100
> +++ /root/.profile	2010-05-10 15:20:51.086746274 +0100
> @@ -6,7 +6,7 @@
> 
>   # the default umask is set in /etc/profile; for setting the umask
>   # for ssh logins, install and configure the libpam-umask package.
> -#umask 022
> +umask 022
> 
>   # if running bash
>   if [ -n "$BASH_VERSION" ]; then
> @@ -20,3 +20,5 @@
>   if [ -d "$HOME/bin" ] ; then
>       PATH="$HOME/bin:$PATH"
>   fi
> +
> +PATH=$PATH:/opt/local/sbin:/opt/local/bin
> 
> > [...]
> >> The dual head nodes of our Beowulf are now running Bio-Linux 6 :-)
> >
> > Nice one.  I hope your users like the new system.
> 
> They can't get in yet - NIS and the automounter are not quite ready, but 
> should be running by tomorrow.
> 
> Bye,
> 
>    Tony.
-- 
Tim Booth <tbooth at ceh.ac.uk>
NERC Environmental Bioinformatics Centre 
at CEH Wallingford
+44 1491 69 2705


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