On Thu, May 05, 2022 at 09:24:48AM +0200, Konstantin Kletschke wrote: > Hey Sascha, > > On Thu, May 05, 2022 at 09:06:02AM +0200, Sascha Hauer wrote: > > > It's only "bootsource" and "bootsource_instance", without the global. > > prefix for historic reasons. > > Ah okay. Those varables are existing. > > If I boot from internal MMC bootsource is mmc and instance is 1. > If I boot from external SD-Card bootsource is mmc and instance is 0. > > I hope I did not confuse, my use case is to boot from internal MMC > always, booting from external SD-Card (i.e. use SD-Cards bootloader) > requires pressing a button which is not accessible. Boot from internal > always, if SD-Card is there use its rernel/rootfs. > > So it is 100% sufficient (succesfully tested already) doing something like: > * boot.default=insidem2m_sd bootchooser > ** /env/boot/insidem2m_sd mounts and boots mmc0.1 > ** bootchooser targets (system0, system1) mount and boot mmc1.1/mmc1.2 > > Haken dran! > > > Try mounting manually with "mount mmc1.2". What does "devinfo ext40" say > > then? It should contain a linux.bootargs option. > > barebox@TI AM335x BeagleBone black:/ mount mmc1.2 > ext4 ext40: EXT2 rev 1, inode_size 256, descriptor size 64 > mounted /dev/mmc1.2 on /mnt/mmc1.2 > barebox@TI AM335x BeagleBone black:/ cat /mnt/mmc1.2/loader/entries/boneblack.conf > title BeagleBone Black - Inside M2M > version 5.14 > options rootwait > linux /boot/zImage > devicetree /boot/am335x-boneblack.dtb > linux-appendroot truebarebox@TI AM335x BeagleBone black:/ devinfo ext40 > Driver: ext4 > Bus: fs > Parent: mmc1 > barebox@TI AM335x BeagleBone black:/ > > So, no bootargs option :-| Is this a DOS partition table or GPT on this card? I assume it's a DOS partition table in which case you should have a variable mmc1.nt_signature. Set this to some arbitrary 32bit value. Several partitioning tools set this automatically, but not all it seems. Sascha -- 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 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
