This is my brand new APU2.e2 (dmesg below). I put a 16GB SD card into it, installed current/amd64 on a USB stick on another machine, plugged the USB sticku into the APU, booted up:
$ cu -rd -l /dev/cuaU0 -115200 Connected to /dev/cuaU0 (speed 115200) SeaBIOS (version rel-1.10.0.1) Press F10 key now for boot menu Select boot device: 1. USB MSC Drive Generic Flash Disk 8.07 2. SD card 16000MiB 3. Payload [memtest] 4. Payload [setup] Booting from Hard Disk... Using drive 0, partition 3. Loading...... Installation onto the SD card went just fine. After reboot, I try to boot from it: Connected to /dev/cuaU0 (speed 115200) PCEngines apu2 coreboot build 20170228 2032 MB DRAM SeaBIOS (version rel-1.10.0.1) Press F10 key now for boot menu Select boot device: 1. USB MSC Drive Generic Flash Disk 8.07 2. SD card 16000MiB 3. Payload [memtest] 4. Payload [setup] Booting from Hard Disk... Using drive 0, partition 3. Loading ERR R Why is that? I can boot from the USB stick, but not from the SC card I installed on the machine itself ... Jan OpenBSD 6.7-beta (GENERIC) #145: Tue Apr 21 21:46:16 MDT 2020 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC real mem = 1996148736 (1903MB) avail mem = 1923190784 (1834MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.7 @ 0x77fb7020 (7 entries) bios0: vendor coreboot version "4.0.7" date 02/28/2017 bios0: PC Engines APU2 acpi0 at bios0: ACPI 4.0 acpi0: sleep states S0 S1 S2 S3 S4 S5 acpi0: tables DSDT FACP SSDT APIC HEST SSDT SSDT HPET acpi0: wakeup devices PWRB(S4) PBR4(S4) PBR5(S4) PBR6(S4) PBR7(S4) PBR8(S4) UOH1(S3) UOH3(S3) UOH5(S3) XHC0(S4) acpitimer0 at acpi0: 3579545 Hz, 32 bits acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: AMD GX-412TC SOC, 998.45 MHz, 16-30-01 cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,DBKP,PERFTSC,PCTRL3,ITSC,BMI1,XSAVEOPT cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB 64b/line 16-way L2 cache cpu0: ITLB 32 4KB entries fully associative, 8 4MB entries fully associative cpu0: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 99MHz cpu0: mwait min=64, max=64, IBE cpu at mainbus0: not configured cpu at mainbus0: not configured cpu at mainbus0: not configured ioapic0 at mainbus0: apid 4 pa 0xfec00000, version 21, 24 pins ioapic1 at mainbus0: apid 5 pa 0xfec20000, version 21, 32 pins, remapped acpihpet0 at acpi0: 14318180 Hz acpiprt0 at acpi0: bus 0 (PCI0) acpiprt1 at acpi0: bus -1 (PBR4) acpiprt2 at acpi0: bus 1 (PBR5) acpiprt3 at acpi0: bus 2 (PBR6) acpiprt4 at acpi0: bus 3 (PBR7) acpiprt5 at acpi0: bus -1 (PBR8) acpicpu0 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS acpibtn0 at acpi0: PWRB acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001 acpicmos0 at acpi0 cpu0: 998 MHz: speeds: 1000 800 600 MHz pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "AMD 16h Root Complex" rev 0x00 pchb1 at pci0 dev 2 function 0 "AMD 16h Host" rev 0x00 ppb0 at pci0 dev 2 function 2 "AMD 16h PCIE" rev 0x00: msi pci1 at ppb0 bus 1 em0 at pci1 dev 0 function 0 "Intel I211" rev 0x03: msi, address 00:0d:b9:56:5e:fc ppb1 at pci0 dev 2 function 3 "AMD 16h PCIE" rev 0x00: msi pci2 at ppb1 bus 2 em1 at pci2 dev 0 function 0 "Intel I211" rev 0x03: msi, address 00:0d:b9:56:5e:fd ppb2 at pci0 dev 2 function 4 "AMD 16h PCIE" rev 0x00: msi pci3 at ppb2 bus 3 em2 at pci3 dev 0 function 0 "Intel I211" rev 0x03: msi, address 00:0d:b9:56:5e:fe ccp0 at pci0 dev 8 function 0 "AMD 16h Crypto" rev 0x00 xhci0 at pci0 dev 16 function 0 "AMD Bolton xHCI" rev 0x11: msi, xHCI 1.0 usb0 at xhci0: USB revision 3.0 uhub0 at usb0 configuration 1 interface 0 "AMD xHCI root hub" rev 3.00/1.00 addr 1 ahci0 at pci0 dev 17 function 0 "AMD Hudson-2 SATA" rev 0x40: apic 4 int 19, AHCI 1.3 scsibus1 at ahci0: 32 targets ehci0 at pci0 dev 19 function 0 "AMD Hudson-2 USB2" rev 0x39: apic 4 int 18 usb1 at ehci0: USB revision 2.0 uhub1 at usb1 configuration 1 interface 0 "AMD EHCI root hub" rev 2.00/1.00 addr 1 piixpm0 at pci0 dev 20 function 0 "AMD Hudson-2 SMBus" rev 0x42: SMI iic0 at piixpm0 iic1 at piixpm0 iic1: addr 0x4c 3e=00 48=00 4a=00 4e=00 fc=00 fe=00 words 00=ffff 01=ffff 02=ffff 03=ffff 04=ffff 05=ffff 06=ffff 07=ffff pcib0 at pci0 dev 20 function 3 "AMD Hudson-2 LPC" rev 0x11 sdhc0 at pci0 dev 20 function 7 "AMD Bolton SD/MMC" rev 0x01: apic 4 int 16 sdhc0: SDHC 2.0, 50 MHz base clock sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma pchb2 at pci0 dev 24 function 0 "AMD 16h Link Cfg" rev 0x00 pchb3 at pci0 dev 24 function 1 "AMD 16h Address Map" rev 0x00 pchb4 at pci0 dev 24 function 2 "AMD 16h DRAM Cfg" rev 0x00 km0 at pci0 dev 24 function 3 "AMD 16h Misc Cfg" rev 0x00 pchb5 at pci0 dev 24 function 4 "AMD 16h CPU Power" rev 0x00 pchb6 at pci0 dev 24 function 5 "AMD 16h Misc Cfg" rev 0x00 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com0: console com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo pcppi0 at isa0 port 0x61 spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 wbsio0 at isa0 port 0x2e/2: NCT5104D rev 0x53 vmm0 at mainbus0: SVM/RVI scsibus2 at sdmmc0: 2 targets, initiator 0 sd0 at scsibus2 targ 1 lun 0: <SD/MMC, , 0000> removable sd0: 16000MB, 512 bytes/sector, 32768000 sectors umass0 at uhub0 port 4 configuration 1 interface 0 "Generic Mass Storage" rev 2.00/1.00 addr 2 umass0: using SCSI over Bulk-Only scsibus3 at umass0: 2 targets, initiator 0 sd1 at scsibus3 targ 1 lun 0: <Generic, Flash Disk, 8.07> removable sd1: 7680MB, 512 bytes/sector, 15728640 sectors uhub2 at uhub1 port 1 configuration 1 interface 0 "Advanced Micro Devices Hub" rev 2.00/0.18 addr 2 vscsi0 at root scsibus4 at vscsi0: 256 targets softraid0 at root scsibus5 at softraid0: 256 targets root on sd1a (703891b39d80a80d.a) swap on sd1b dump on sd1b