[syslinux] "menu quit" entry causing prompt to freeze

[Sebastian Herbszt]

Dag Wieers wrote:
> Hi,
> 
> I had one entry in my main menu which looked like:
> 
> label exit
>   menu label ^Exit menu
>   menu quit
> 
> Now, I did not expect anyone to type: exit on the boot-prompt. But someone 
> did today and we discovered that isolinux froze (and even ctrl-alt-del did 
> not cause a reboot).
> 
> Unfortunately in this instance we also found that the RSA adapter was not 
> or incorrectly configured. And we could not remotely reboot the server. :)
> 
> So I changed it into:
> 
> label -
>   menu label ^Exit menu
>   menu quit
> 
> However I don't think that such an entry should have this behaviour on the 
> command prompt. Maybe providing a new prompt would be better in this case ?
> 
> Just a thought...

I just tried such an entry in my config using pxelinux and since this label
doesn't have a kernel name set pxelinux jumps here to local_boot and tries to boot
from local disk. It doesn't matter if the label is called "exit" or "xyz".
Does local boot work from isolinux on that system?

- Sebastian