Ubuntu
u-boot-linaro package

  1. Bug #927781
  2. Comment #14

Comment 14 for bug 927781

Revision history for this message
Rob Herring (r-herring) wrote : Re: [Bug 927781] Re: PXELINUX implementation doesn't respect dhcp ConfigFile or PathPrefix values

On 08/03/2012 10:28 AM, John Rigby wrote:
> Hope Robbie does not mind my inserting this from an email of his:
>
>
> ....
>
> Summary
>
> pxelinux emulation on ARM does not match the behaviour of pxelinux.0 on
> Intel, even in areas that are not architecture-dependent. This means
> that developers working and testing on Intel push stuff that they expect
> to work, and it doesn't. This costs us considerable time dealing with
> the impedence mismatches.
>
> Things to Fix
>
> Ideally, everything. Someone could do an audit of U-Boot's pxelinux
> emulation as it appears in upstream trunk, compare it to pxelinux
> documentation and construct a complete list of missing features and
> behaviour.
>
> Specific Things That We've Noticed
>
> This is based on the U-Boot supplied to us by vendors, rather than
> upstream trunk.
>
> * U-Boot does not understand "localboot", which is important for MAAS'
> current mode of operation.

It does. localcmd has to be set in the environment.

>
> * U-Boot ignores DHCP options 208 through 211. LP: #927781, RFC5071.
>
> * U-Boot cannot parse a configuration in the following form that is
> valid in pxelinux, due to limited menu support:
>
> DEFAULT menu
> PROMPT 0
> MENU TITLE foo
> TIMEOUT 1
> ONTIMEOUT ubuntu-enlist
>
> LABEL ubuntu-enlist
> kernel bar
> MENU LABEL ubuntu-enlist
> append baz
> ipappend 2
> MENU end

What specifically is the failing part?

Rob

>
> Robie
>