Microcore a10Core-20120920

This page is about setting up wifi/ssh on mini-x, using the 20120920 test release of arm MicroCore. Some parts of this setup will be redundant and sub-optimal - it hasn't been refined at all. It's just something that works for me as a starting point, so that I can access the mini-x remotely.

Downloads

partitioning (using a linux machine)

boot script

setup some host keys & pubkey

I'm using a flashdrive mounted at /mnt/sda1 with various files I need. Extract some downloaded modules and dep file as per tree listing - see further down this page.

Copy public key and create ssh host keys:

mkdir -p /mnt/mmcblk0p2/tce/kmw/sshd
cd /mnt/mmcblk0p2/tce/kmw/sshd
cp /mnt/sda1/public_key.rsa.pub .
dropbearkey -t rsa -f dropbear_rsa_host_key
dropbearkey -t dss -f dropbear_dss_host_key

bootlocal script

Modify /opt/bootlocal.sh to match this:

tc@box:~$ cat /opt/bootlocal.sh
#!/bin/sh
# put other system startup commands here
/mnt/mmcblk0p2/tce/kmw/bootlocal.sh

run this to save the bootlocal changes: filetool.sh -b

kmw chained bootlocal script

Create a script like this and make it executable.

tc@box:~$ cat /mnt/mmcblk0p2/tce/kmw/bootlocal.sh
#! /bin/sh

KMW=/mnt/mmcblk0p2/tce/kmw
cp $KMW/modules/net         /lib/modules/3.0.39/kernel/drivers/ -a
cp $KMW/modules/modules.dep /lib/modules/3.0.39/ -af
modprobe 8192cu

cd /; for FN in $KMW/Debian_Wheezy/*.deb; do
   ar p "$FN" data.tar.gz | tar zx
done

ifconfig wlan0 up
wpa_supplicant -B -Dwext -i wlan0 -c $KMW/wpa_supplicant.conf
#udhcpc -i wlan0
ifconfig wlan0 192.168.1.44

mkdir /home/tc/.ssh
cp $KMW/sshd/public_key.rsa.pub /home/tc/.ssh/authorized_keys
chown tc:staff -R /home/tc/.ssh
chmod 700 /home/tc/.ssh
chmod 600 /home/tc/.ssh/*

dropbear -d $KMW/sshd/dropbear_dss_host_key -r $KMW/sshd/dropbear_rsa_host_key

wpa_supplicant.conf

tc@box:/mnt/mmcblk0p2/tce/kmw$ cat wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=20
network={
   ssid="myWifiSSID"
   scan_ssid=1
   key_mgmt=WPA-PSK
   psk="mySecretWifiPassword"
}

blkid listing

tc@box:~$ blkid
/dev/nanda: SEC_TYPE="msdos" LABEL="Volumn" TYPE="vfat"
/dev/nandi: LABEL="PRIVATE" UUID="2023-07DA" TYPE="vfat"
/dev/nandk: LABEL="APOLLO" UUID="5EBB-07DA" TYPE="vfat"
/dev/mmcblk0p1: SEC_TYPE="msdos" UUID="4D79-11A5" TYPE="vfat"
/dev/mmcblk0p2: LABEL="a10core" UUID="04dbf9a9-31fa-4fbd-99e7-fda72249e8ff" TYPE="ext2"
/dev/nandh: UUID="57f8f4bc-abf4-655f-bf67-946fc0f9f25b" TYPE="ext4"
/dev/sda1: LABEL="KEXECLOADER" UUID="32C2-5615" TYPE="vfat"
/dev/nandd: UUID="57f8f4bc-abf4-655f-bf67-946fc0f9f25b" TYPE="ext4"
/dev/nande: UUID="57f8f4bc-abf4-655f-bf67-946fc0f9f25b" TYPE="ext4"

tree listing

tc@box:/mnt/mmcblk0p2/tce/kmw$ tree
.
|-- Debian_Wheezy
|   |-- debconf_1.5.46_all.deb
|   |-- dropbear_2012.55-1_armhf.deb
|   |-- gcc-4.7-base_4.7.1-7_armhf.deb
|   |-- libc-bin_2.13-35_armhf.deb
|   |-- libc6_2.13-35_armhf.deb
|   |-- libdbus-1-3_1.6.0-1_armhf.deb
|   |-- libgcc1_4.7.1-7_armhf.deb
|   |-- libiw30_30~pre9-8_armhf.deb
|   |-- libncurses5_5.9-10_armhf.deb
|   |-- libnl-3-200_3.2.7-4_armhf.deb
|   |-- libnl-genl-3-200_3.2.7-4_armhf.deb
|   |-- libpcsclite1_1.8.4-1_armhf.deb
|   |-- libreadline6_6.2-8+b1_armhf.deb
|   |-- libssl1.0.0_1.0.1c-4_armhf.deb
|   |-- lsb-base_4.1+Debian7_all.deb
|   |-- ncurses-bin_5.9-10_armhf.deb
|   |-- perl-base_5.14.2-12_armhf.deb
|   |-- readline-common_6.2-8_all.deb
|   |-- tar_1.26-4_armhf.deb
|   |-- tree_1.6.0-1_armhf.deb
|   |-- wireless-tools_30~pre9-8_armhf.deb
|   |-- wpasupplicant_1.0-2_armhf.deb
|   `-- zlib1g_1.2.7.dfsg-13_armhf.deb
|-- bootlocal.sh
|-- modules
|   |-- modules.dep
|   `-- net
|       |-- tun.ko
|       |-- usb
|       |   |-- asix.ko
|       |   |-- cdc_ether.ko
|       |   |-- cdc_ncm.ko
|       |   |-- cdc_subset.ko
|       |   |-- hso.ko
|       |   |-- ipheth.ko
|       |   |-- kaweth.ko
|       |   |-- net1080.ko
|       |   |-- pegasus.ko
|       |   |-- qf9700.ko
|       |   |-- usbnet.ko
|       |   `-- zaurus.ko
|       `-- wireless
|           `-- rtl8192cu
|               `-- 8192cu.ko
|-- sshd
|   |-- dropbear_dss_host_key
|   |-- dropbear_rsa_host_key
|   `-- public_key.rsa.pub
`-- wpa_supplicant.conf