R64 mainline OpenWRT on sdcard

Banana Pi BPI-R4/BPI-R3 Mini/BPI-R3/BPI-R64/BPI-R2
1

Is there a procedure to update a sdcard image of openwrt?

I have created a new openwrt 21.01 image with additional kernel drivers which I need to load onto the currently running openwrt image on sdcard.

The current sdcard layout looks like this:

root@build001:~# fdisk -l /dev/sdc The backup GPT table is corrupt, but the primary appears OK, so that will be used.

Disk /dev/sdc: 29.7 GiB, 31914983424 bytes, 62333952 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disklabel type: gpt

Disk identifier: 5452574F-2211-4433-5566-778899AABB00

Device Start End Sectors Size Type

/dev/sdc1 1024 2047 1024 512K Linux filesystem

/dev/sdc2 4096 8191 4096 2M EFI System

/dev/sdc3 8192 10239 2048 1M Linux filesystem

/dev/sdc4 12288 77823 65536 32M Linux filesystem

/dev/sdc5 77824 92159 14336 7M Linux filesystem

/dev/sdc6 92160 305151 212992 104M unknown

/dev/sdc128 34 1023 990 495K BIOS boot

Partition table entries are not in disk order.

I would like to increase the space of /dev/sdc6 which I am assuimg holds the rootfs of openwrt.

I believe the command should look something like this:

dd if=/openwrtimage.img offset=47185920(512 * start block), loopback of=/dev/sdc6

Can someone please point me in the right direction I am stuck

2

Afaik you can just use sysupgrade emmc.img.gz and that should work [tm]…

Be aware that post-21.02 the image for the BPi-R64 has changed and you will loose your configuration when upgrading to 22.xx or OpenWrt snapshot.

3

Emmc version for sdcard? At least atf is different as it needs device as compile-param. And sysupgrade can be written to sdcard?

4

If you have booted from SD Card, then sysupgrade will apply the new image to the SD card as well.

5

What are the options I need to select in the menu to create a mmc image and SDCARD image? I though it is a combined image, thanks for the correction?

I have a SDCARD image and sysupgrade image, but now that I have tested the build in the sdcard I would like to take it to the Emmc.

Thanks a lot

6

I would recommend you to use OpenWrt master branch instead of the 21.02 release branch because the image generation code has seen a major rework. If you are using the latest OpenWrt there is only a single sysupgrade.fit image which works equally on all boot methods (SD Card, eMMC, SPI-NAND). For installation there is the sdcard.img.gz file which you can use to install OpenWrt onto the eMMC or onto the SPI-NAND, see here for instructions:

https://openwrt.org/toh/sinovoip/bananapi_bpi-r64_v1.1#sd_card_installation