Bootloader update (mcuboot)

RE: Bootloader update (mcuboot)

dejans — Fri, 22 Jul 2022 14:01:50 GMT

Hi,

[quote user="Vinay S"]after mcuboot upgradation how this new mcuboot get to know about the correct application , ( which application it supposed to boot )[/quote]

You can take a look at image slots to get more information on how the images are upgraded. MCUboot requires 2 image slots - one for application which is going to be booted and second for new application. You can read more about MCUboot partitions. Partition Manager is activated for all multi-image builds and it is used to set start addresses and sizes of all flash and RAM partitions in multi-image builds. Additionally, you can read about management subsystem MCUmgr and image management provided by mcumgr.

Best regards,
Dejan

RE: Bootloader update (mcuboot)

Shikamaru — Fri, 22 Jul 2022 12:18:06 GMT

[quote userid="111786" url="~/f/nordic-q-a/90252/bootloader-update-mcuboot/378247"]Do you want to upgrade application after you upgrade MCUboot?[/quote]

yes this also one of the requirement , however my doubt is that , after mcuboot upgradation how this new mcuboot get to know about the correct application , ( which application it supposed to boot ) .

RE: Bootloader update (mcuboot)

dejans — Fri, 22 Jul 2022 09:14:24 GMT

Hi,

Do you want to upgrade application after you upgrade MCUboot?

Best regards,
Dejan

RE: Bootloader update (mcuboot)

Shikamaru — Fri, 22 Jul 2022 06:30:54 GMT

thanks dejans ,

However , I have one doubt here , consider a situation , I have a valid application which is running fine, and then I have updated the mcuboot which is second stage upgradable bootloader from immutable bootloader , then after upgrading the mcuboot , how the new mcuboot image will get to know that , which is valid application image ?

RE: Bootloader update (mcuboot)

dejans — Thu, 21 Jul 2022 14:46:30 GMT

Hi,

You could take a look at supported bootloaders, second-stage upgradable bootloader and adding upgradable bootloader.

Best regards,
Dejan