On Wed, 2 Oct 2024 at 07:26, Martyn Welch martyn.welch@collabora.com wrote:
We have previously added logic to allow a "fallback" option to be specified in the extlinux configuration. Provide a command that allows us to set this as the preferred default option when booting.
Combined with the bootcount functionality, this allows the "altbootcmd" to provide a means of falling back to a previously known good state after a failed update. For example, if "bootcmd" is set to:
bootflow scan -lbWe would set "altbootcmd" to:
bootmeth set extlinux fallback 1; bootflow scan -lbCausing the boot process to boot from the fallback option.
Signed-off-by: Martyn Welch martyn.welch@collabora.com
boot/bootmeth-uclass.c | 25 ++++++++++++++ boot/bootmeth_extlinux.c | 73 +++++++++++++++++++++++++++++++++++++++- cmd/bootmeth.c | 25 ++++++++++++-- include/bootmeth.h | 31 +++++++++++++++++ 4 files changed, 151 insertions(+), 3 deletions(-)
Reviewed-by: Simon Glass sjg@chromium.org
But please update the documentation too - for the command and for the new bootstd feature