On Tue, Jun 14, 2016 at 08:29:09AM +0200, Matthieu Herrb wrote: > On Mon, Jun 13, 2016 at 12:43:59PM +0200, Mark Kettenis wrote: > > > Date: Sun, 12 Jun 2016 19:48:24 +0200 > > > From: Matthieu Herrb <[email protected]> > > > > > > Hi, > > > > > > I'm trying to convert my SabreLite board to boot via efiboot, but > > > without success so far. > > > > > > I'm using the nitrogen6q u-boot from ports > > > > > > the boot loader is loaded and runs but it > > > fails to find the sata disk to load the kernel: > > > > > > => fatload sata 0:1 0x10800000 efi/boot/bootarm.efi > > > reading efi/boot/bootarm.efi > > > 65556 bytes read in 9 ms (6.9 MiB/s) > > > => fatload sata 0:1 0x13000000 imx6q-sabrelite.dtb > > > reading imx6q-sabrelite.dtb > > > 36834 bytes read in 8 ms (4.4 MiB/s) > > > => bootefi 0x10800000 0x13000000 > > > ## Starting EFI application at 0x10800000 ... > > > Scanning disks on sata... > > > Scanning disks on usb... > > > Scanning disks on mmc... > > > MMC: no card present > > > MMC Device 2 not found > > > MMC Device 3 not found > > > Found 2 disks > > > > The firmware found 2 disks. Perhaps there is something wrong with > > efiboot boot device selection code. And unfortunately efiboot doesn't > > currently support selecting alternative boot devices. > > > > > >> OpenBSD/armv7 BOOTARM 0.1 > > > boot> > > > cannot open sd0a:/etc/random.seed: Device not configured > > > booting sd0a:/bsd: open sd0a:/bsd: Device not configured > > > failed(6). will try /bsd > > > boot> > > > > This suggests that we actually didn't find the boot device. So the > > problem might be that the boot device selection code in efiboot > > doesn't work for SATA devices. > > I played a bit with the u-boot sources, and rebuilt it with the patch > below to print the devname of the disks it found. I get: > > => bootefi 0x10800000 0x13000000 > ## Starting EFI application at 0x10800000 ... > Scanning disks on sata... > Found 'sata0' > Scanning disks on usb... > Scanning disks on mmc... > Found 'mmc0' > MMC: no card present > MMC Device 2 not found > MMC Device 3 not found > Found 2 disks > ยป OpenBSD/armv7 BOOTARM 0.1 > boot> > booting sd0a:/bsd: open sd0a:/bsd: Device not configured > failed(6). will try /bsd > > so the sata0 disk is found. now I lost track of how this is passed to > the bootloader. Any hint ?
I'd look at efi_diskprobe() in sys/arch/armv7/stand/efiboot/efiboot.c with http://www.uefi.org/sites/default/files/resources/UEFI%20Spec%202_6.pdf There is likely some way to skip the mmc disk (that isn't actually present?) > > --- lib/efi_loader/efi_disk.c~ Mon May 16 16:40:32 2016 > +++ lib/efi_loader/efi_disk.c Sun Jun 12 17:22:22 2016 > @@ -242,6 +242,7 @@ > snprintf(devname, sizeof(devname), "%s%d", > cur_drvr->name, i); > efi_disk_add_dev(devname, cur_drvr, desc, i, 0); > + printf("Found '%s'\n", devname); > disks++; > > /* > > -- > Matthieu Herrb
