Hello - I'm just getting started in the work of Arm based boards. I'd like to use CentOS on my Orange Pi Zero. I've followed the instructions here: https://wiki.centos.org/SpecialInterestGroup/AltArch/armhfp but the system does not appear boot - no red LED, no ethernet activity. It does when I use one of the Orange Pi provided Ubuntu images. I'm using the /usr/share/uboot/orangepi_zero/u-boot-sunxi-with-spl.bin uboot image, and CentOS-Userland-7-armv7hl-generic-Minimal-1804-sda.raw.xz centos image. Comparing the contents of partition 1 which seems to be the boot partition, on the Orange Pi image I see: # ls -l /mnt total 4654 -rwxr-xr-x. 1 root root 538 Nov 9 2016 boot.scr* -rwxr-xr-x. 1 root root 34864 Nov 9 2016 script.bin* -rwxr-xr-x. 1 root root 49292 Nov 9 2016 sys_config.fex* -rwxr-xr-x. 1 root root 4679592 Nov 9 2016 uImage* while on the Centos image I see: root at barry.cora.nwra.com [~]# ls -l /mnt total 12998 -rwxr-xr-x. 1 root root 50248 May 1 06:26 bootcode.bin* -rwxr-xr-x. 1 root root 4442 May 1 06:26 config-64.txt* -rwxr-xr-x. 1 root root 4285 May 1 06:26 config.txt* -rwxr-xr-x. 1 root root 2594 May 1 06:26 fixup_cd.dat* -rwxr-xr-x. 1 root root 6581 May 1 06:26 fixup.dat* -rwxr-xr-x. 1 root root 9726 May 1 06:26 fixup_db.dat* -rwxr-xr-x. 1 root root 9726 May 1 06:26 fixup_x.dat* drwxr-xr-x. 2 root root 2048 May 1 06:26 overlays/ -rwxr-xr-x. 1 root root 411984 May 1 06:26 rpi2-u-boot.bin* -rwxr-xr-x. 1 root root 422632 May 1 06:26 rpi3-u-boot.bin* -rwxr-xr-x. 1 root root 667492 May 1 06:26 start_cd.elf* -rwxr-xr-x. 1 root root 4965380 May 1 06:26 start_db.elf* -rwxr-xr-x. 1 root root 2827652 May 1 06:26 start.elf* -rwxr-xr-x. 1 root root 3911652 May 1 06:26 start_x.elf* which seems more Raspberry Pi oriented? Is there something I'm missing? -- Orion Poplawski Manager of NWRA Technical Systems 720-772-5637 NWRA, Boulder/CoRA Office FAX: 303-415-9702 3380 Mitchell Lane orion at nwra.com Boulder, CO 80301 https://www.nwra.com/