[fedora-virt] Is it possible to automatically swap CD during Fedora install in KVM?

[Li Ming]

On 03/16/2010 04:42 PM, Richard W.M. Jones wrote:
> On Tue, Mar 16, 2010 at 10:20:18AM +0800, Li Ming wrote:
>> If we can get the /tmp/anaconda.log or output of tty3(you can send
>> Ctrl+Alt+F3 to see the output),just search for "switching from media",if
>> find this word,it's the time for swap CD.But get the /tmp/anaconda.log
>> in non-network environment is a challenge,we still have no answer.
>
> Is /tmp on a physical disk during this part of the installation?  If
> so libguestfs can get it.  Something like:
>
> $ echo download /tmp/anaconda.log - |
>    guestfish --ro -a /path/to/guest.img -m /dev/device/in/guest |
>    grep "switching from media"
>
> However I was also going to suggest something based on virt-dmesg, if
> Anaconda sends any message to the kernel message log (if indeed that
> is possible).
>

It should work in installed guest, but during install, the file system 
is in memory, that means all logs which were generated by anaconda in 
/tmp/anaconda.log is not wrote to disk, so the log 
file(/tmp/anaconda.log) can not be able to get?

can virt-dmesg get the output in tty3?

Thanks
Liam