Re: [Testbed-admins] Problems swapping in experiments

[Robert P Ricci <ricci@cs.utah.edu>]

Thus spake Miguel A. Erazo on Tue, Feb 16, 2010 at 10:17:37PM -0400:
> Now, I issued:
>   * %wap os_load pc1 *
> 
> But, the screen from where I issued this command keeps showing:
> 
> *osload (pc1): still waiting; it has been 1 minute(s)
> osload (pc1): still waiting; it has been 2 minute(s)
> osload (pc1): still waiting; it has been 3 minute(s)*
> ....
> 
> The node did boot after the 'os_load' but then stopped asking for me to
> press Ctrl-c to issue an interactive command. I then entered:
>    *part:2*
> And the node did finish booting because I see on the screen:
>   *Fedora Core release 6 (Zod)
>   Kernel 2.6.20.6emulab on an i686
>   pc1 login:
> *
> My question then is why I had to enter manually 'part:2'?, I thought this
> node would boot automatically all to way up to Linux.

What this probably means is that there was some problem with the node
checking in with bootinfo, the daemon on boss that tell it what it's
supposed to boot next. The bootinfo logfile can be found in
/usr/testbed/log on boss.

> Now, I try to swap in an experiment (guessing everythin went right) using
> this node in the ns file:
> 
> * 'tb-set-node-os $node($i) FC6-STD'
> ....
> *
> But I get the error:
> *
> *
> 
> **** No possible mapping for node-1
>        OS 'emulab-ops/FC6-STD' (OS-10013) does not run on this hardware type!
> *** Node mapping precheck failed!*
> 
> But the node does have FC-6 judging from the prompt and it is configured as
> such in the node_type_attributes table:
> 
> | type    | attrkey                 | attrvalue                   | attrtype
> |
> | pc745 | default_imageid   | 10013 (FC6-STD)     | integer  |
> | pc745 | delay_osid            | 10013  (FC6-STD)    | integer  |
> 
> Any guess of what would be going wrong here?

There's probably something wrong with the osidtoimageid table - did you
apply the database commands that 'came with' the images you downloaded?

There's a page that describes how this stuff works in some detail here:
    http://users.emulab.net/trac/emulab/wiki/kb117