Thanks for the heads up Michael. As for programs, did you give ImgBurn
a try? I just checked and it supports all the way down to 1x for both
of my burners. http://www.imgburn.com/

--Jeremy

On Fri, Nov 27, 2009 at 14:48, Michael Simpson <[log in to unmask]> wrote:
> Quick followup.
>
> After failing to find a burning program that would let me burn at 8x speed I
> burned it at my burner's lowest setting 16x and tried it out on one of my
> remaining good CASes.   The upgrade went fine for that CAS and for the CAM.
> I now get to clean up the mess from the first disk.
>
> Michael
>
>>>> "Michael Simpson" <[log in to unmask]> 11/27/2009 10:41 AM >>>
>
> I'm currently trying to upgrade our NAC gear and came across this problem on
> my first two CASes
>
> Problem Details: I was following the NAC upgrade instructions and during the
> upgrade of my
> first two CAS boxes I got the following error:
>
> unrecovered read error --(asc=0x11, ascq=0x00)
> Read failed "Read 10" packed command was
> Buffer I/O error on device hda, logical block 301275
> Buffer I/O error on device hda, logical block 301276
> Buffer I/O error on device hda, logical block 301277
> Buffer I/O error on device hda, logical block 301278
> Buffer I/O error on device hda, logical block 301279
> Buffer I/O error on device hda, logical block 301280
> Buffer I/O error on device hda, logical block 301281
> Buffer I/O error on device hda, logical block 301282
> Buffer I/O error on device hda, logical block 301283
> Buffer I/O error on device hda, logical block 301284
> Fatal: Could not install python-2.4.3-24.ek.1386.rpm
>
> I reboot one CAS and got to a grub> prompt.  Rebooted again with install
> disk and was
> no longer given an option to upgrade only fresh install.
>
> I was told by support that this was probably caused by not burning my CD at
> 8x speed?  I'm now supposed to fresh install these boxes and hope the config
> is not lost when I get them back into the CAM.  I also need to find a
> burning program that will burn at less than 16x since mine does not.
>
>
>>>> "Heller, Josh" <[log in to unmask]> 11/25/2009 10:55 AM >>>
>
> Greetings,
>
>
>
> The Release Notes indicate that the installer will prompt you for whether
> you would like to perform an upgrade or a fresh install. This is provided
> that you gracefully shutdown each appliance before booting off of the 4.7.1
> CD.  That command is noted as being “shutdown –r now”.
>
>
>
>
>
> Josh Heller
>
> Sr. Network Analyst
>
> Information Technology
>
> Kutztown University
>
> 610.683.4930
>
>
>
>
>
>
>
> From: Cisco Clean Access Users and Administrators
> [mailto:[log in to unmask]] On Behalf Of Pete Boynton
> Sent: Wednesday, November 25, 2009 12:20 PM
> To: [log in to unmask]
> Subject: Re: Announcing NAC Release 4.7.1 availability!!
>
>
>
> Josh,
>
>
>
> Does that mean we need to do a fresh install on the CAS and CAM if they are
> running 4.6.1? And if so, I assume there any way to import the config and
> certs from my existing deployment right?
>
>
>
> Has anyone out there done this with success??
>
>
>
> Thanks,
>
>
>
> Pedro
>
>
>
> From: Cisco Clean Access Users and Administrators
> [mailto:[log in to unmask]] On Behalf Of Heller, Josh
> Sent: Wednesday, November 25, 2009 11:16 AM
> To: [log in to unmask]
> Subject: Re: Announcing NAC Release 4.7.1 availability!!
>
>
>
> I sure do hope that they return to “upgrade” packages going forward. They
> were much more convenient than the CD based process we’ll need to go through
> to upgrade to 4.7.1.
>
>
>
> Josh Heller
>
> Sr. Network Analyst
>
> Information Technology
>
> Kutztown University
>
> 610.683.4930