Hello, I am likely to add this board to OpenWRT as it's distro is far more suited for my deployment scenario. How can I completely flash the EMMC including bootloader? I would also like to have uboot be able to load and flash via tftp and not SDcard.
Complete flashing on NanoPC-T2
Boot NanoPC-T2 from eMMC Download RAW Image Get the image file: nanopi2-eflasher-sd4g.img.zip and the Windows utility: win32diskimager.rar; Flash RAW Image to SD Card Insert an SD card(at least 4G) into a Windows PC and run the win32diskimager utility as administrator. On the utility's main window select your SD card's drive, the wanted image file and click on "write" to start flashing the SD card Prepare RAW image Go to this link [http://wiki.friendlyarm.com/wiki/nanopi2/download/] to download Android and Debian image files(System-image-files-for-eMMC). After download untar the ".tgz" ball and copy the files to your SD card. OS Image Files Copy to... Android 5.1 android-lollipop-images.tgz android-lollipop-images.tgz.hash.md5 boot.img system.img userdata.img cache.img partmap.txt images\android Debian (Jessie) debian-jessie-images.tgz debian-jessie-images.tgz.hash.md5 boot.img rootfs.img partmap.txt images\debian Specify OS By default the SD card's configuration file "images\FriendlyARM.ini" specifies Android to be flashed to eMMC. If you want to install Debian make the following change: OS = Debian"#" is a comment Flash Image to NanoPC-T2's eMMC Insert this card into your NanoPC-T2, connect the board to an HDMI monitor or an LCD, press and hold the boot key and power on (with a 5V/2A power source) the board to start installation. You can watch the whole installation process from the HDMI monitor or LCD. If the following messages pop up it means the installation has succeeded. Android is fused successfully. All done.After installation is done do "reset" or power off and on the board to boot the board from eMMC. http://wiki.friendlyarm.com/wiki/index.php/NanoPC-T2#Boot_NanoPC-T2_from... You can read this rink.
This is an odd case where there isn't a JTAG or another way to program the EMMC flash should something error. I'm assuming there is a backup bootloader somewhere in there? NOR perhaps?
1、You can use FriendlyARM prepared's ROM for eMMC . 2、Using SD card to start NanoPC-T2, and use https://github.com/friendlyarm/sd-fuse_nanopi2 to write eMMC. 3、Using SD card to start NanoPC-T2 enter uboot, and fuse by uboot, eMMC's device is mmc2,using update_mmc can update eMMC, you can read the source code of uboot .
Okay... but this is not standard process. I have a custom uboot - now I want to boot my own kernel. If I use fastboot to flash my image either uImage or zImage, I get messages like the bellow. sudo fastboot flash boot bin/nanopct2/uImage OR sudo fastboot flash boot bin/nanopct2/zImage s5p4418# run bootcmd Failed to mount ext2 filesystem... ** Unrecognized filesystem type ** Failed to mount ext2 filesystem... ** Unrecognized filesystem type ** Wrong Image Format for bootm command ERROR: can't get kernel image! s5p4418# run bootd ## Error: "bootd" not defined s5p4418# printenv baudrate=115200 bloader=ext4load mmc 2:1 bootargs=console=ttyAMA0,115200n8 androidboot.console=ttyAMA0 androidboot.serialno=0123456789abcdef initrd=0x49000000,0x100000 lcd=HDMI720P60 bootdev=2 bootcmd=$bloader 0x48000000 $kernel;$bloader 0x49000000 root.img.gz;bootm 0x48000000 bootdelay=1 bootfile=uImage ethaddr=00:e2:1c:ba:e8:60 fastboot=2ndboot:2nd:0x200,0x4000;bootloader:boot:0x8000,0x70000;boot:ext4:0x001 00000,0x04000000;system:ext4:0x04100000,0x02F200000;cache:ext4:0x33300000,0x1AC0 0000;misc:emmc:0x4; fastbootdev=flash=mmc,2:parts filesize=119438 gatewayip=192.168.1.254 ipaddr=192.168.1.165 kernel=uImage.hdmi netmask=255.255.255.0 serverip=192.168.1.164 stderr=serial stdin=serial stdout=serial I realize that you are going to redirect me to your already defined tools - this won't work for us as we are writing our own ROMS (sorry China - its not stable, not modern/updated nor can we account for what is inside your fw). Tell me how and what with your ancient version of uboot please.
Now, I've gotten this far, but don't get output or a hang ## Booting kernel from Legacy Image at 48000000 ... Image Name: ARM OpenWrt NanoPC-T2 Linux-3.4. Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 3692516 Bytes = 3.5 MiB Load Address: 48000000 Entry Point: 48000000 Verifying Checksum ... OK Loading Kernel Image ... OK
After reverting and porting in the old 3.4.39 kernel, I get a message like: �[ 2.916000] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6 [ 2.924000] Please append a correct "root=" boot option; here are the available partitions: [ 2.932000] b300 7634944 mmcblk0 driver: mmcblk [ 2.936000] b301 65536 mmcblk0p1 00000000-0000-0000-0000-000000000000 [ 2.944000] b302 772096 mmcblk0p2 00000000-0000-0000-0000-000000000000 [ 2.952000] b303 438272 mmcblk0p3 00000000-0000-0000-0000-000000000000 [ 2.960000] b304 1 mmcblk0p4 00000000-0000-0000-0000-000000000000 [ 2.968000] b305 8192 mmcblk0p5 00000000-0000-0000-0000-000000000000 [ 2.976000] b306 22528 mmcblk0p6 00000000-0000-0000-0000-000000000000 [ 2.984000] b307 6324224 mmcblk0p7 00000000-0000-0000-0000-000000000000 [ 2.988000] b310 4096 mmcblk0boot1 (driver?) [ 2.996000] b308 4096 mmcblk0boot0 (driver?) Even if I use the fuse tools - where are the boot args looking for the rootfs? To which partition can I flash it too with fastboot?
Hey Ron, did you ever get this solved? I am in a similar situation where I would like to flash my own version of u-boot and my own kernel directly. Thanks!