[syslinux] menu save

[Bryan.James.Krone-EXT at jci.com]

syslinux-bounces at zytor.com wrote on 08/01/2011 01:05:21 PM:

> [image removed] 
> 
> Re: [syslinux] fwrite?
> 
> Gert Hulselmans 
> 
> to:
> 
> For discussion of Syslinux and tftp-hpa
> 
> 08/01/2011 01:07 PM
> 
> Sent by:
> 
> syslinux-bounces at zytor.com
> 
> Please respond to For discussion of Syslinux and tftp-hpa
> 
> Bryan.James.Krone-EXT at jci.com wrote:
> > Is there a mechanism already in Syslinux that would count the number 
of
> > reboot of an OS? I'm working with an embedded OS and I would like to
> > reboot into another OS if the original fails to boot more than 10 
times.
> >
> > Thanks for responding to my earlier question.
> >
> 
> Yes, there is a mechanism.
> 
> With the Syslinux/Extlinux installer, you can set the --once option to 
the
> label, you only want to boot once (testing a new kernel).
> Next boot, the default label is booted.
> 
> The following commands write the the ADV area of Syslinux:
>   --once=...   -o  Execute a command once upon boot
>   --clear-once -O  Clear the boot-once command
>   --reset-adv      Reset auxilliary data
>   --menu-save= -M  Set the label to select as default on the next boot
> 
> It should be relatively easy to modify Syslinux so it supports the
> counting, you need. Instead of only counting once.
> 
> - Gert Hulselmans
> 
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I used this command:
syslinux -M Windows --install /dev/sdb2

and my syslinux.cfg file looks like this:

DEFAULT advdump

LABEL Windows
   COM32 chain.32
   APPEND hd0 1

LABEL advdump
   COM32 advdump.c32


Why doesn't syslinux boot the Windows label on the next boot?