Rock/sd lubuntu

How to boot rootfs on an SD Card

• Get a parameter file from http://dl.radxa.com/rock/images/parameter/, make sure the root command entry of parameter file is root=/dev/mmcblk0p1

• Flash it to the board with RKAndroidTool(Windows) from here. Linux instructions here.

• It should now boot from SD Card

Example parameter file:

FIRMWARE_VER:4.2.2
MACHINE_MODEL:radxa_rock
MACHINE_ID:007
MANUFACTURER:RADXA
MAGIC: 0x5041524B
ATAG: 0x60000800
MACHINE: 3066
CHECK_MASK: 0x80
KERNEL_IMG: 0x60408000
#RECOVER_KEY: 1,1,0,20,0
CMDLINE:console=ttyFIQ0,115200 console=tty0 root=/dev/mmcblk0p1 rw rootfstype=ext4 mac_addr=12:21:34:43:56:65 init=/sbin/init initrd=0x62000000,0x00800000 mtdparts=rk29xxnand:0x00008000@0x00002000(boot),-@0x0000A000(linuxroot)

Create Lubuntu SD Card

• Get a rootfs-desktop.img file from http://dl.radxa.com/rock/images/ubuntu/partitions/
• Unzip it
• Finally copy rootfs image to sd card.

$ sudo dd if=mydir/rootfs-desktop.img of=/dev/mmcblk0p1
$ sync

Resize SD Card

$ sudo resize2fs -p /dev/mmcblk0p1

Alternative way

you can make/boot (l)ubuntu from SD card without (modification to) NAND.