Hi again, On Tue, 2023-01-03 at 10:39 +0100, Jan Lübbe wrote: > Hi, > > On Tue, 2023-01-03 at 09:31 +0100, Ahmad Fatoum wrote: > > Hello Bernd, > > > > On 03.01.23 09:17, BAUER Bernd wrote: > > > Hi! > > > > > > I have an IMX8MN system and want to use RAUC to update the bootloader. > > > The BL is on the EMMC (no partition) and is not redundant. > > > > Why would you not place it into the dedicated hardware boot partitions > > that your eMMC already has? > > > > > Does this work with Rauc at all? > > > > eMMC boot partition are better because they provide power-fail safe update, > > but you could use the eMMC user area with RAUC as well. > > Easiest way is to just place a MBR/GPT partition at the location where the > > bootrom expects the bootloader. There's no rule that the bootloader needs > > to be located in unpartitioned space. > > Which SoC are you using?
Ah, I just noticed that you're using a i.MX8MN. That means you can use the eMMC boot partitions and have atomic bootloader updates with the current implementation in RAUC: https://rauc.readthedocs.io/en/latest/advanced.html#update-bootloader-in-emmc-boot-partitions Regards, Jan > Depending on what the ROM code expects, you could use the other types > (boot-raw- > fallback or boot-mbr-switch). > > If the ROM code only supports a single fixed bootloader offset, you cannot > update it atomically. Support for that is not implemented in RAUC yet. > > > > I have unfortunately found nothing in the manual about it. > > > > There's: > > https://rauc.readthedocs.io/en/latest/examples.html#atomic-bootloader-updates-emmc > > More details on the available methods are in: > https://rauc.readthedocs.io/en/latest/advanced.html#updating-the-bootloader -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
