[Casper] Casper Imaging failing to load on Netinstall for onemachine

[Thomas Larkin]

Netinstalls store in RAM and in virtual memory on the HD.  If there is
not enough free space it will lock.  My netinstall I think is like 11
gigs, but my main image is about 14 gigs in size.  I have a very large
standard image, and it is faster to block copy said large image than to
package deploy a base image and many packages to over 6,000 clients. 

Remember that a netinstall pulls down the whole OS so it needs to pull
down the compressed image file and then have enough space to expand at
the same time.  I am thinking you want at least probably 20 gigs free.

Once in a netinstall if you quit the casper imaging app it will drop
you to a root shell session.  You can run the diskutil command from
there and wipe out and restore a new partition, then relaunch the casper
imaging app by using the open command.  That way you don't have to
re-netboot 100 times trying to troubleshoot it.

My very first guess at the problem would be bad HD or bad RAM, possibly
bad NIC but in my experience bad NICs typically fail to netboot all
together.


 

___________________________
Thomas Larkin
TIS Department
KCKPS USD500
tlarki at kckps.org
blackberry:  913-449-7589
office:  913-627-0351





>>> James Alcasid <james.alcasid at va.gov> 06/23/09 2:04 PM >>> 
I was thinking the same thing. Might be a bad sector that may need to
be
remapped via Disk Utility.


James Alcasíd, ACSA | VeriSolv Technologies
Department of Veterans Affairs | Enterprise Infrastructure Engineering
470 L¹Enfant Plaza Suite 3100, Washington DC 20024
Office (202) 245-4573, Mobile (703) 400-1471







From: "Ernst, Craig S." <ERNSTCS at uwec.edu>
Date: Tue, 23 Jun 2009 14:28:14 -0400
To: "Dorey, Dustin" <Dustin.Dorey at district196.org>, Casper List
<casper at list.jamfsoftware.com>
Subject: Re: [Casper] Casper Imaging failing to load on Netinstall for
one
machine

Hardware problem?

On 6/23/09 1:03 PM, "Dorey, Dustin" <Dustin.Dorey at district196.org>
wrote:

> I have a 17² intel iMac that I cannot get to load Casper Imaging on
via
> netbooted to a Netinstall set created from JAMF¹s tools.   It will
Netboot,
> load the OS and as soon as Casper Imaging goes to load it hangs on
> initializing, every once in a while it will get to checking
packages.
>  
> Other intels netboot to the same server and install set properly.
> I have removed the computer from the JSS
> I zeroed the HD
> I imaged it in Target boot mode just fine.
> I upgraded the firmware
> Moved it to an entirely different subnet on known good connections at
a
> different building.
>  
> I¹m out of ideas.   Any advice? Thanks!
> -Dusty-
>  
> Dustin  Dorey
> Technology Support Cluster Specialist
> Independant School District 196
> Rosemount-Apple Valley-Eagan Public Schools
> dustin.dorey at district196.org
> 651|423|7971
>  
> 


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