[9fans] Namespace customization

[9fans] Namespace customization

[Carlos Sánchez de La Lama]

Hi all,

I am trying to put some customizations to the default namespace on a cpu
server with 2 nics. But I am having some problems:

If i put

bind -a #l1 /net.alt
bind -a #I1 /net.alt

on /lib/namespace, it works ok. But if I put the same two lines in
/cfg/$sysname/namespace (which gets executed at the end of
/lib/namespace) it does not.

In the latter case, those two get bound if I manually re-run /386/init
at the console of the cpu server after boot.

After googling and checking a bit, I see $sysname is set in cpurc, so I
will not be available at namespace creation.

Is there a way to have $sysname available at that point? Otherwise, the
lines using $sysname in stock /lib/namespace should be removed (they
lead to confusion). Any other way to customize namespace per-machine?

BR

Carlos

Re: [9fans] Namespace customization

[Carlos Sánchez de La Lama]

I found the answer just after posting :S

> Is there a way to have $sysname available at that point?

Setting sysname in plan9.ini (or in this case in pxe/<macaddr> as I am
netbooting) does the trick :)

Carlos

Re: [9fans] Namespace customization

[Nick Owens]

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in my cpu server in a vm, i put the nic setup in /cfg/$sysname/cpustart
and put the namespace setup in /lib/namespace.$sysname.

/cfg/chi/cpustart:

#!/bin/rc
#
# cpustart

## internal services
auth/secstored
ip/dhcpd
ip/tftpd

## external network (qemu nat)
bind -a '#l1' /net.alt
bind -a '#I1' /net.alt
ip/ipconfig -x /net.alt ether /net.alt/ether1
ndb/cs -x /net.alt
ndb/dns -Rrx /net.alt

aux/listen -q -t /rc/bin/service.auth -d /rc/bin/service /net.alt/tcp


and then /lib/namespace.chi:

bind -b '#l1' /net.alt
bind -b '#I1' /net.alt
mount -a /srv/cs_net.alt /net.alt
mount -a /srv/dns_net.alt /net.alt


from there i just import /net.alt from a second pxe booted machine if i
want to access the real 'net.
i hope this helps.

On Wed, Apr 23, 2014 at 01:17:59PM +0000, Carlos Sánchez de La Lama wrote:
> I found the answer just after posting :S
> 
> > Is there a way to have $sysname available at that point?
> 
> Setting sysname in plan9.ini (or in this case in pxe/<macaddr> as I am
> netbooting) does the trick :)
> 
> Carlos
> 
> 

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Re: [9fans] Namespace customization

[Carlos Sánchez de La Lama]

Hi Nick,

> in my cpu server in a vm, i put the nic setup in /cfg/$sysname/cpustart
> and put the namespace setup in /lib/namespace.$sysname.

That is quite similar to what I was trying to do (almost exactly the
same, thought I was putting namespace setup in /cfg/$sysname/namespace;
both that and /lib/namespace.$sysname are included from global
/lib/namespace).

My problem was that /env/sysname was not available at that point, but it
is solved now by adding sysname=<host> in plan9.ini

Thanks for your answer!

Carlos