bootflow: extlinux and menu

[Heiko Thiery]

Hi Tom,

Am Do., 24. Apr. 2025 um 19:49 Uhr schrieb Heiko Thiery
<heiko.thiery at gmail.com>:
>
> Hi,
>
> Am Do., 24. Apr. 2025 um 19:45 Uhr schrieb Tom Rini <trini at konsulko.com>:
> >
> > On Thu, Apr 24, 2025 at 07:36:06PM +0200, Heiko Thiery wrote:
> >
> > > Hi,
> > >
> > > I tried bootflow for the first time and wanted to test my extlinux
> > > configuration with separate menu entries. But I don't see that the
> > > menu is shown. The default value is always selected. Am I right in
> > > thinking that this is not supported with extlinux?
> >
> > I suspect Simon also found this recently and fixed it as part of another
> > series. It's likely in:
> > https://patchwork.ozlabs.org/project/uboot/list/?series=449177&state=*
> > It wasn't based on master or next:
> > https://patchwork.ozlabs.org/project/uboot/cover/20250319143820.2385092-1-sjg@chromium.org/
> > And some of the tidying up lead to size growth in a number of platforms:
> > https://patchwork.ozlabs.org/project/uboot/patch/20250319143820.2385092-2-sjg@chromium.org/
> > Along with needing to document some of the user visible changes:
> > https://patchwork.ozlabs.org/project/uboot/patch/20250319143820.2385092-7-sjg@chromium.org/
> >
> > You might want to see if just patches 7 / 8 / 9 resolve the issue you
> > see and if so we can get just those merged in.
>
> Sounds promising. I will try to test this in the next days (when I'm
> back in office) and give you a feedback.

Unfortunately it does not solve the problem. What I have is the
following extlinux config file on my boot partition:

>>>> extlinux.conf
label Kontron SMARC-sAM67
  kernel /Image
  devicetree /k3-am67a-kontron-sa67.dtb
  append root=PARTUUID=f615c46d-fe53-4547-8875-4c21438d931e rootwait

label Kontron SMARC-sAM67 on Evaluation Carrier 2.0
  kernel /Image
  devicetree /k3-am67a-kontron-sa67.dtb
  devicetree-overlay /k3-am67a-kontron-sa67-ads2.dtbo
  append root=PARTUUID=f615c46d-fe53-4547-8875-4c21438d931e rootwait
>>>>

>>>> output
[SDHC] => bootflow scan
Cannot persist EFI variables without system partition
Bus usb at 31000000: Register 1000840 NbrPorts 1
Starting the controller
USB XHCI 1.10
Bus usb at 31200000: cdns-usb3-host usb at 31200000: set 1 has failed, back to 0
scanning bus usb at 31000000 for devices... 1 USB Device(s) found
scanning bus usb at 31200000 for devices... 1 USB Device(s) found

Error: ethernet at 8000000ethernet@800000 No valid MAC address found.

Error: ethernet at 8000000ethernet@800000 No valid MAC address found.
[SDHC] => bootflow list
Showing all bootflows
Seq  Method       State   Uclass    Part  Name                      Filename
---  -----------  ------  --------  ----  ------------------------
----------------
  0  efi_mgr      ready   (none)       0  <NULL>
  1  extlinux     ready   mmc          1  mmc at fa10000.bootdev.part_
/extlinux/extlinux.conf
  2  extlinux     ready   mmc          1  mmc at fa00000.bootdev.part_
/extlinux/extlinux.conf
---  -----------  ------  --------  ----  ------------------------
----------------
(3 bootflows, 3 valid)
[SDHC] => bootflow select 1
[SDHC] => bootflow info
Name:      mmc at fa10000.bootdev.part_1
Device:    mmc at fa10000.bootdev
Block dev: mmc at fa10000.blk
Method:    extlinux
State:     ready
Partition: 1
Subdir:    (none)
Filename:  /extlinux/extlinux.conf
Buffer:    ffad2b80
Size:      17f (383 bytes)
OS:        Kontron SMARC-sAM67 on Evaluation Carrier 2.0
Cmdline:   (none)
Logo:      (none)
FDT:       <NULL>
Error:     0
[SDHC] => bootflow select 2
[SDHC] => bootflow info
Name:      mmc at fa00000.bootdev.part_1
Device:    mmc at fa00000.bootdev
Block dev: mmc at fa00000.blk
Method:    extlinux
State:     ready
Partition: 1
Subdir:    (none)
Filename:  /extlinux/extlinux.conf
Buffer:    ffad3b80
Size:      17f (383 bytes)
OS:        Kontron SMARC-sAM67 on Evaluation Carrier 2.0
Cmdline:   (none)
Logo:      (none)
FDT:       <NULL>
Error:     0
[SDHC] =>
>>>>

For both found extlinux based entries it shows in the OS info line
"Kontron SMARC-sAM67 on Evaluation Carrier 2.0" that is the name/label
of the seconds entry. But when booting either 1 or 2 it always loads
the first entry of extlinux without loading and applying the overlay.

Also support for having the menu shown is also not available.

--
Heiko


> Thanks in advance.
>
> BR
> Heiko
>
> > --
> > Tom