[syslinux] memdisk and iso

[Gene Cumm]

On Thu, Jun 6, 2013 at 7:02 PM, upen <upendra.gandhi at gmail.com> wrote:
> On Thu, Jun 6, 2013 at 5:38 PM, Gene Cumm <gene.cumm at gmail.com> wrote:
>> On Jun 6, 2013 5:42 PM, "H. Peter Anvin" <hpa at zytor.com> wrote:
>> > On 06/06/2013 02:40 PM, upen wrote:
>> > >
>> > > Some odd things I observed just now.
>> > > 1. Since yesterday, I have been reseting the client box from
>> > > Virtualbox VM
>> > > menu (Reset option). This always showed me com32 vesamenu.c32 message.
>> > > 2. Some time ago, I decided I power off the client VM( Close->poweroff
>> > > from
>> > > Menu). This time I saw the menu. It didn't show the background jpg
>> > > though.
>> > > Anyways I chose the menu option for loading ISO. It returned me the
>> > > same
>> > > menu options, while showing file not found messages at the bottom of
>> > > the
>> > > screen.
>> > > 3. I tried reset as in (1), again com32 -vesamenu.c32 message as
>> > > stated
>> > > earlier.
>> > > 4. Power off , power on . No menu this time. Shows the
>> > > com32-vesamenu.c32
>> > > message as stated earlier.
>> > >
>> > > No such issues with pxelinux.0 though.
>> > >
>> > > I am now rebooting TFTP/DHCP server and see if that helps  to any
>> > > level.
>> > >
>> >
>> > Sounds like it's losing lots of packets.
>> >
>> >         -hpa
>> >
>>
>> What PXE OROM is being used?  VirtualBox version?
>
> Virtualbox version 4.2.12 r84980. AMD64.
> 00:00:01.780076   LanBootRom     <string>  =
> "/opt/VirtualBox/ExtensionPacks/Oracle_VM_VirtualBox_Extension_Pack/PXE-Intel.rom"
> (cb=81
>
> Thanks.
>>
>> While working on 4.10-pre, I recall cases others saw with
>> dropped/intercepted packets and observed a race in a VM when it was using
>> the wrong lwIP call.  I was working on some verbose debug code that should
>> help but need to port it up and finish it.

Now that I have this straight, I recall some issue in VirtualBox 4.2
that required a downgrade to 4.1.

--
-Gene