flash minix neo x5 only with adb 
Wednesday, June 5, 2013, 21:11 - Debian/Ubuntu, Android
Posted by Administrator
minix> click right bottom (clock), click settings, click settings on bottom
       and choose com.rockchip.settings.
minix> enable Usb debugging
minix> select device and change usb connection (PC) to MTP.
minix> connect minix with USB Cable to PC.

ubuntu> echo 0x2207 >> ~/.android/adb_usb.ini
ubuntu> apt-get install android-tools-adb (get a root shell with adb shell)
ubuntu> sudo adb start-server
ubuntu> adb devices (you should see your minix device)

ubuntu> download http://files.androtab.info/rockchip/rk3 ... X5_CWM.zip
        and rename it to update.zip
        (http://forum.xda-developers.com/showthr ... ?t=2230186)
ubuntu> adb push update.zip /sdcard/
ubuntu> adb reboot
minix> on boot you are prompted to install the update, confirm it
after install completed
ubuntu> adb reboot recovery
minix> choose install zip from sideload
ubuntu> download http://www.freak-tab.de/petrus/neo_x5_f ... ir_CWM.zip
        (http://www.freaktab.com/showthread.php? ... Minix-Roms)
ubuntu> adb sideload neo_x5_finless_12b_720_noair_CWM.zip
minix> reboot system now

Update: I've installed this image now.


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hostap with a wifi usb stick on demand 
Friday, November 9, 2012, 09:37 - System, Network, Debian/Ubuntu
Posted by Administrator
After plug in of a wifi usb stick linux act's as a hostap.

apt-get install isc-dhcp-server hostapd

changes in /etc/hostapd/hostapd.conf
interface=wlan0
driver=nl80211
ssid=MYSSID
country_code=AT
ieee80211d=1
hw_mode=g
channel=11
beacon_int=1000
dtim_period=20
ieee80211n=1
wpa=2
wpa_passphrase=MYPASSPHRASE
wpa_pairwise=TKIP CCMP

/etc/network/interfaces
iface wlan0 inet static
  address 192.168.9.1
  netmask 255.255.255.0
  hostapd /etc/hostapd/hostapd.conf
  up iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
  up /etc/init.d/isc-dhcp-server restart
  down iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE
  down killall hostapd

first check vendor and product id with lsusb:

/etc/udev/rules.d/local.rules
ACTION=="add", SUBSYSTEMS=="usb", ATTRS{idVendor}=="148f", ATTRS{idProduct}=="3070", \
                                                     RUN+="/sbin/ifup wlan0"
ACTION=="remove", SUBSYSTEM=="net", KERNEL=="wlan0", RUN+="/sbin/ifdown wlan0"

On booting this does not work for me so i started the hostap by

/etc/rc.local
lsusb | grep -q "148f:3070" && /sbin/ifup wlan0



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apt-get behind a server port redirected with ssh to a proxy 
Tuesday, August 28, 2012, 10:44 - System, Network, Debian/Ubuntu
Posted by Administrator
There is an apt proxy (Apt-Cacher NG), a workstation, a server and a server behind that server.
workstation> ssh -R3142:proxy:3142 server

server> ssh -R3142:127.0.0.1:3142 server_behind

server_behind> cat /etc/apt/apt.conf.d/01proxy
Acquire::http { Proxy "http://localhost:3142"; }

server_behind> apt-get update; apt-get upgrade


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Ubuntu Wake on Lan WOL 
Monday, August 27, 2012, 11:32 - System, Debian/Ubuntu
Posted by Administrator
If ethtool ethX doesn't contain Wake-on: g then add pre-down /sbin/ethtool -s ethX wol g to /etc/network/interfaces

Add NETDOWN=no to /etc/default/halt

Test with /sbin/shutdown -P now and wakeonlan [-i BROADCASTADDR] MAC (apt-get install wakeonlan)

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hdd performance tests 
Monday, January 30, 2012, 10:17 - System, Debian/Ubuntu
Posted by Administrator
#> hdparm -tT /dev/sda
Timing buffered disk reads: 398 MB in 3.00 seconds = 132.45 MB/sec

write:

#> dd if=/dev/zero of=./tempfile bs=1M count=1024 conv=fdatasync,notrunc
1073741824 Bytes (1,1 GB) kopiert, 12,8038 s, 83,9 MB/s

read:

#> echo 3 > /proc/sys/vm/drop_caches
#> dd if=./tempfile of=/dev/null bs=1M count=1024
1073741824 Bytes (1,1 GB) kopiert, 6,79724 s, 158 MB/s

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