Difference between revisions of "NSLU2"

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  +
http://www.andreabeggi.net/wp-content/53006-nslu2.jpg
  +
  +
==Intro==
  +
* XScale processor from Intel (ARM) at 266MHz (133MHz before hacking...)
  +
* 32Mb SDRAM
  +
* 8Mb Flash
  +
* 2 USB 2.0 ports
  +
 
==Links==
  
==Links==
−
* http://en.wikipedia.org/wiki/NSLU2
 +
* [http://en.wikipedia.org/wiki/NSLU2 Description] on wikipedia
  +
* [http://www.nslu2-linux.org/wiki/OpenSlug/HomePage OpenSlug]
  +
 
==Todo==
  
==Todo==
  +
* Mine came with
−
* check if we need to http://www.nslu2-linux.org/wiki/HowTo/OverClockTheSlug
  
  +
** Server Name: LKG63472F
  +
** Version: V2.3RA5
  +
* Connect USB printer?
  +
* Install backuppc -> I tried but slug is really too slow for that :-(
  +
* Connect Tuxdroid dongle
  +
 
==Debian==
  
==Debian==
−
* [http://www.cyrius.com/debian/nslu2/ Debian on NSLU2] [http://www.cyrius.com/debian/nslu2/install.html howto]
 +
* [http://www.nslu2-linux.org/wiki/Debian/HomePage Debian/NSLU2]
−
* Get [http://www.slug-firmware.net/d-dls.php Debian 4.0r0] firmware from http://www.slug-firmware.net/
 +
* [http://www.cyrius.com/debian/nslu2/ How to install Debian on NSLU2]
  +
===Installation===
  +
To install, follow the [http://www.cyrius.com/debian/nslu2/install.html howto], here are the big steps:
  +
* Get [http://www.slug-firmware.net/d-dls.php Debian 4.0r0] firmware from http://www.slug-firmware.net/ and unzip it
  +
* Power the NSLU2 and wait a bit (green light) before plugging it to the network if you've a DHCP, so the NSLU2 will choose itself IP 192.168.1.77, otherwise look to your DHCP server logs to find the IP attribution
  +
* Go to the admin webpage, tab administration, login admin/admin
  +
* Configure ALL network params if you don't have DHCP
  +
* Go to the admin webpage, tab administration, login admin/admin, tab advanced, tab upgrade
  +
* Upload di-nslu2.bin, start upgrade
  +
* Wait for "upgrading ok" (5mins) -> wait for 3 bips (5-10mins)
  +
* This is the last moment to plug an external USB mass-storage if you didn't do so yet
  +
* Login via ssh installer@192.168.1.77 (or another IP got by DHCP...) pwd "install"
  +
** I did it from an xterm but exported term mode is pure console so it's better to login from a real text console otherwise the ncurses menu is a bit broken (but still usable)
  +
* Start installation, manually load the following modules:
  +
** ext3-modules-2.6.18-4-ixp4xx-di
  +
** partman-auto
  +
** partman-ext3
  +
** scsi-core-modules-2.6.18-4-ixp4xx-di
  +
** usb-storage-modules-2.6.18-4-ixp4xx-di
  +
* Whatever system you choose to partition your disk, be sure to have at least 128M of swap, I've set up 512M on my 400G drive.
  +
* In total it took about 100 mins to complete
  +
* If you need a console, start a second ssh connection and choose to obtain a shell
  +
* On tasksel, I chose absolutely nothing, I prefer to take only what I need later
  +
===After first reboot===
  +
* dpkg --get-selections|wc -l
  +
142
  +
* du -hs /
  +
179M
  +
* dmesg:
  +
Linux version 2.6.18-4-ixp4xx (Debian 2.6.18.dfsg.1-12) (waldi@debian.org) (gcc versi
  +
on 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Tue Mar 27 18:01:56 BST 2007
  +
CPU: XScale-IXP42x Family [690541f1] revision 1 (ARMv5TE), cr=0000397f
  +
Machine: Linksys NSLU2
  +
Memory policy: ECC disabled, Data cache writeback
  +
On node 0 totalpages: 8192
  +
DMA zone: 8192 pages, LIFO batch:1
  +
CPU0: D VIVT undefined 5 cache
  +
CPU0: I cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets
  +
CPU0: D cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets
  +
Built 1 zonelists. Total pages: 8192
  +
Kernel command line: console=ttyS0,115200 rtc-x1205.probe=0,0x6f noirqdebug
  +
IRQ lockup detection disabled
  +
PID hash table entries: 256 (order: 8, 1024 bytes)
  +
Console: colour dummy device 80x30
  +
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
  +
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
  +
Memory: 32MB = 32MB total
  +
Memory: 25780KB available (1948K code, 496K data, 92K init)
  +
  +
Calibrating delay loop... 132.71 BogoMIPS (lpj=663552)
  +
...
  +
* hdparm -tT /dev/sda
  +
/dev/sda:
  +
Timing cached reads: 86 MB in 2.04 seconds = 42.20 MB/sec
  +
Timing buffered disk reads: 28 MB in 3.12 seconds = 8.98 MB/sec
  +
===Tweaks===
  +
* Ok so our NSLU2 is well underclocked, let's restore its full speed following [http://www.nslu2-linux.org/wiki/HowTo/OverClockTheSlug this howto]
  +
Calibrating delay loop... 266.24 BogoMIPS (lpj=1331200)
  +
Much better :-)
  +
/dev/sda:
  +
Timing cached reads: 90 MB in 2.00 seconds = 44.98 MB/sec
  +
Timing buffered disk reads: 32 MB in 3.03 seconds = 10.56 MB/sec
  +
A bit better but nothing fantastic...
  +
* Setup static network parameters
  +
** apt-get install resolvconf
  +
** edit /etc/network/interfaces
  +
allow-hotplug eth0
  +
iface eth0 inet static
  +
address 192.168.1.77
  +
netmask 255.255.255.0
  +
gateway 192.168.1.1
  +
dns-nameservers 192.168.1.2 192.168.1.1
  +
* From /usr/share/doc/nslu2-utils/README.Debian:
  +
** sed -i 's/^FSCKFIX=.*$/FSCKFIX=yes/' /etc/default/rcS
  +
** sed -i 's/^BOOTLOGD_ENABLE=.*$/BOOTLOGD_ENABLE=yes/' /etc/default/bootlogd
  +
** Reorder the booting sequence to get ssh up earlier:
  +
ls -l /etc/rcS.d/
  +
S21resolvconf -> ../init.d/resolvconf
  +
S22ifupdown -> ../init.d/ifupdown
  +
S23networking -> ../init.d/networking
  +
S23ssh -> ../init.d/ssh
  +
  +
** By default the power button restarts the slug, change the call to shutdown in /etc/inittab:
  +
ca:12345:ctrlaltdel:/sbin/shutdown -h now
  +
  +
==Devel==
  +
Be prepared to do some native compilation...
  +
* apt-get install build-essential
  +
===Tuxdroid===
  +
====Basics====
  +
* apt-get install subversion libusb-dev libglib2.0-dev ipython
  +
* mkdir /home/tuxdroid; cd /home/tuxdroid
  +
* svn co http://svn.tuxisalive.com tuxdroid-svn
  +
* cd tuxdroid-svn/daemon/trunk
  +
* make
  +
* mkdir -p /opt/tuxdroid/api
  +
* ln -s /home/tuxdroid/tuxdroid-svn/software /opt/tuxdroid/api/python
  +
* mkdir -p /opt/tuxdroid/bin
  +
* ln -s /home/tuxdroid/tuxdroid-svn/daemon/trunk/tuxdaemon /opt/tuxdroid/bin
  +
* ln -s /opt/tuxdroid/bin/tuxdaemon /usr/local/bin/tuxdaemon
  +
* echo -e "#/bin/bash\npython -i /opt/tuxdroid/api/python/tux.py" > /opt/tuxdroid/bin/tuxsh
  +
* chmod 755 /opt/tuxdroid/bin/tuxsh
  +
* ln -s /opt/tuxdroid/bin/tuxsh /usr/local/bin/tuxsh
  +
===Flashing tools===
  +
* cd /home/tuxdroid
  +
* cd tuxdroid-svn/firmware/tuxup/trunk/
  +
* make
  +
* ln -s /home/tuxdroid/tuxdroid-svn/firmware/tuxup/trunk/tuxup /opt/tuxdroid/bin
  +
* ln -s /opt/tuxdroid/bin/tuxup /usr/local/bin/tuxup
  +
* wget http://belnet.dl.sourceforge.net/sourceforge/dfu-programmer/dfu-programmer-0.4.0.tar.gz
  +
* tar xzf dfu-programmer-0.4.0.tar.gz
  +
* cd dfu-programmer-0.4.0
  +
* ./configure
  +
* make
  +
* ln -s /home/tuxdroid/dfu-programmer-0.4.0/src/dfu-programmer /usr/local/bin
  +
* apt-get install gcc-avr avr-libc gdb-avr libsvn-dev
  +
* wget http://svnwcrev.tigris.org/files/documents/3444/29110/svnwcrev-0.1.tar.gz
  +
* tar -xzf svnwcrev-0.1.tar.gz
  +
* cd svnwcrev-0.1
  +
* sed 's/apr-0/apr-1.0/' config_mk.template > config.mk
  +
* make
  +
* ln -s /home/tuxdroid/svnwcrev-0.1/svnwcrev /usr/local/bin/
  +
  +
===Audio===
  +
* apt-get install alsa-utils mpg321
  +
* cat /proc/asound/cards
  +
0 [Droid ]: USB-Audio - Tux Droid
  +
Kysoh Tux Droid at usb-0000:00:01.0-1, full speed
  +
* with a more recent firmware you get:
  +
0 [default ]: USB-Audio - TUX RF DONGLE
  +
C2ME BELGIUM TUX RF DONGLE at usb-0000:00:01.0-1, full speed
  +
For oss layer:
  +
* modprobe snd_pcm_oss
  +
* modprobe snd_mixer_oss
  +
  +
'''[[Webradio]]'''
  +
  +
===Status===
  +
* compiling tuxdaemon '''OK'''
  +
* running tuxdaemon '''FAIL'''
  +
** USB part seems ok (displays tux events properly) but not TCP part, seems not to be listening on port
  +
* compiling tuxup '''OK'''
  +
* compiling dfu-programmer '''OK'''
  +
* compiling svncrev '''OK'''
  +
* compiling tuxcore tuxaudio '''OK'''
  +
* flashing tuxcore.hex tuxcore.eep tuxaudio.hex tuxaudio.eep '''OK'''
  +
* sound '''PARTLY'''
  +
** ALSA and OSS-emulation layers are up
  +
** the sound is quite hashed and lot of "alsa underrun" msgs, slightly better results through oss than alsa
  +
** recording at 8000 Hz mono is very poor (played on host)
  +
** playing at 8000 Hz mono is poor (recorded on host)
  +
** madplay -b8 -R8000 ...mp3 is correct
  +
==Misc==
  +
===Boot diagnostics===
  +
From /usr/share/doc/nslu2-utils/README.Debian but in case of problems I prefer to have the text here :-)
  +
Some of the led states during boot include:
  +
- Cycling down all the leds from top to bottom: The APEX boot loader.
  +
- Amber status led: Initramfs is running, mounting root filesystem.
  +
- Disk 1 on, status slowly switching between amber and green: Root
  +
filesystem mounted, system booting.
  +
- Disk 1 on, status green, with fast double amber flashes: System is booted
  +
and running. The frequency of the amber flashes indicates the system's
  +
one minute load average; faster flashes denote higher load.
  +
- Disk 1 on, status quickly flashing between black/green and black/amber.
  +
Single user mode. Again the flash interval denotes load.
  +
- Disk 1 on, status slowly switching beteween amber and red: Shutdown in
  +
progress.
  +
===tests===
  +
apt-get install locales
  +
apache2-mpm-prefork - Traditional model for Apache HTTPD 2.1
  +
apache2-mpm-worker - High speed threaded model for Apache HTTPD 2.1

Latest revision as of 21:33, 24 November 2010

http://www.andreabeggi.net/wp-content/53006-nslu2.jpg

Intro

  • XScale processor from Intel (ARM) at 266MHz (133MHz before hacking...)
  • 32Mb SDRAM
  • 8Mb Flash
  • 2 USB 2.0 ports

Links

Todo

  • Mine came with
    • Server Name: LKG63472F
    • Version: V2.3RA5
  • Connect USB printer?
  • Install backuppc -> I tried but slug is really too slow for that :-(
  • Connect Tuxdroid dongle

Debian

Installation

To install, follow the howto, here are the big steps:

  • Get Debian 4.0r0 firmware from http://www.slug-firmware.net/ and unzip it
  • Power the NSLU2 and wait a bit (green light) before plugging it to the network if you've a DHCP, so the NSLU2 will choose itself IP 192.168.1.77, otherwise look to your DHCP server logs to find the IP attribution
  • Go to the admin webpage, tab administration, login admin/admin
  • Configure ALL network params if you don't have DHCP
  • Go to the admin webpage, tab administration, login admin/admin, tab advanced, tab upgrade
  • Upload di-nslu2.bin, start upgrade
  • Wait for "upgrading ok" (5mins) -> wait for 3 bips (5-10mins)
  • This is the last moment to plug an external USB mass-storage if you didn't do so yet
  • Login via ssh installer@192.168.1.77 (or another IP got by DHCP...) pwd "install"
    • I did it from an xterm but exported term mode is pure console so it's better to login from a real text console otherwise the ncurses menu is a bit broken (but still usable)
  • Start installation, manually load the following modules:
    • ext3-modules-2.6.18-4-ixp4xx-di
    • partman-auto
    • partman-ext3
    • scsi-core-modules-2.6.18-4-ixp4xx-di
    • usb-storage-modules-2.6.18-4-ixp4xx-di
  • Whatever system you choose to partition your disk, be sure to have at least 128M of swap, I've set up 512M on my 400G drive.
  • In total it took about 100 mins to complete
  • If you need a console, start a second ssh connection and choose to obtain a shell
  • On tasksel, I chose absolutely nothing, I prefer to take only what I need later

After first reboot

  • dpkg --get-selections|wc -l
142
  • du -hs /
179M
  • dmesg:
Linux version 2.6.18-4-ixp4xx (Debian 2.6.18.dfsg.1-12) (waldi@debian.org) (gcc versi
on 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Tue Mar 27 18:01:56 BST 2007
CPU: XScale-IXP42x Family [690541f1] revision 1 (ARMv5TE), cr=0000397f
Machine: Linksys NSLU2
Memory policy: ECC disabled, Data cache writeback
On node 0 totalpages: 8192
  DMA zone: 8192 pages, LIFO batch:1
CPU0: D VIVT undefined 5 cache
CPU0: I cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets
CPU0: D cache: 32768 bytes, associativity 32, 32 byte lines, 32 sets
Built 1 zonelists.  Total pages: 8192
Kernel command line: console=ttyS0,115200 rtc-x1205.probe=0,0x6f noirqdebug
IRQ lockup detection disabled
PID hash table entries: 256 (order: 8, 1024 bytes)
Console: colour dummy device 80x30
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 32MB = 32MB total
Memory: 25780KB available (1948K code, 496K data, 92K init)

Calibrating delay loop... 132.71 BogoMIPS (lpj=663552)
...
  • hdparm -tT /dev/sda
/dev/sda:
Timing cached reads:    86 MB in  2.04 seconds =  42.20 MB/sec
Timing buffered disk reads:   28 MB in  3.12 seconds =   8.98 MB/sec

Tweaks

  • Ok so our NSLU2 is well underclocked, let's restore its full speed following this howto
Calibrating delay loop... 266.24 BogoMIPS (lpj=1331200)

Much better :-) 

/dev/sda:
Timing cached reads:    90 MB in  2.00 seconds =  44.98 MB/sec
Timing buffered disk reads:   32 MB in  3.03 seconds =  10.56 MB/sec

A bit better but nothing fantastic...

  • Setup static network parameters
    • apt-get install resolvconf
    • edit /etc/network/interfaces
allow-hotplug eth0
iface eth0 inet static
   address 192.168.1.77
   netmask 255.255.255.0
   gateway 192.168.1.1
   dns-nameservers 192.168.1.2 192.168.1.1
  • From /usr/share/doc/nslu2-utils/README.Debian:
    • sed -i 's/^FSCKFIX=.*$/FSCKFIX=yes/' /etc/default/rcS
    • sed -i 's/^BOOTLOGD_ENABLE=.*$/BOOTLOGD_ENABLE=yes/' /etc/default/bootlogd
    • Reorder the booting sequence to get ssh up earlier:
ls -l /etc/rcS.d/
S21resolvconf -> ../init.d/resolvconf
S22ifupdown -> ../init.d/ifupdown
S23networking -> ../init.d/networking
S23ssh -> ../init.d/ssh
    • By default the power button restarts the slug, change the call to shutdown in /etc/inittab:
ca:12345:ctrlaltdel:/sbin/shutdown -h now

Devel

Be prepared to do some native compilation...

  • apt-get install build-essential

Tuxdroid

Basics

  • apt-get install subversion libusb-dev libglib2.0-dev ipython
  • mkdir /home/tuxdroid; cd /home/tuxdroid
  • svn co http://svn.tuxisalive.com tuxdroid-svn
  • cd tuxdroid-svn/daemon/trunk
  • make
  • mkdir -p /opt/tuxdroid/api
  • ln -s /home/tuxdroid/tuxdroid-svn/software /opt/tuxdroid/api/python
  • mkdir -p /opt/tuxdroid/bin
  • ln -s /home/tuxdroid/tuxdroid-svn/daemon/trunk/tuxdaemon /opt/tuxdroid/bin
  • ln -s /opt/tuxdroid/bin/tuxdaemon /usr/local/bin/tuxdaemon
  • echo -e "#/bin/bash\npython -i /opt/tuxdroid/api/python/tux.py" > /opt/tuxdroid/bin/tuxsh
  • chmod 755 /opt/tuxdroid/bin/tuxsh
  • ln -s /opt/tuxdroid/bin/tuxsh /usr/local/bin/tuxsh

Flashing tools

Audio

  • apt-get install alsa-utils mpg321
  • cat /proc/asound/cards
0 [Droid          ]: USB-Audio - Tux Droid
                     Kysoh Tux Droid at usb-0000:00:01.0-1, full speed
  • with a more recent firmware you get:
0 [default        ]: USB-Audio - TUX RF DONGLE
                     C2ME BELGIUM TUX RF DONGLE  at usb-0000:00:01.0-1, full speed

For oss layer:

  • modprobe snd_pcm_oss
  • modprobe snd_mixer_oss

Webradio

Status

  • compiling tuxdaemon OK
  • running tuxdaemon FAIL
    • USB part seems ok (displays tux events properly) but not TCP part, seems not to be listening on port
  • compiling tuxup OK
  • compiling dfu-programmer OK
  • compiling svncrev OK
  • compiling tuxcore tuxaudio OK
  • flashing tuxcore.hex tuxcore.eep tuxaudio.hex tuxaudio.eep OK
  • sound PARTLY
    • ALSA and OSS-emulation layers are up
    • the sound is quite hashed and lot of "alsa underrun" msgs, slightly better results through oss than alsa
    • recording at 8000 Hz mono is very poor (played on host)
    • playing at 8000 Hz mono is poor (recorded on host)
    • madplay -b8 -R8000 ...mp3 is correct

Misc

Boot diagnostics

From /usr/share/doc/nslu2-utils/README.Debian but in case of problems I prefer to have the text here :-) 

Some of the led states during boot include:
- Cycling down all the leds from top to bottom: The APEX boot loader.
- Amber status led: Initramfs is running, mounting root filesystem.
- Disk 1 on, status slowly switching between amber and green: Root
  filesystem mounted, system booting.
- Disk 1 on, status green, with fast double amber flashes: System is booted
  and running. The frequency of the amber flashes indicates the system's
  one minute load average; faster flashes denote higher load.
- Disk 1 on, status quickly flashing between black/green and black/amber.
  Single user mode. Again the flash interval denotes load.
- Disk 1 on, status slowly switching beteween amber and red: Shutdown in
  progress.

tests

apt-get install locales
apache2-mpm-prefork - Traditional model for Apache HTTPD 2.1
apache2-mpm-worker - High speed threaded model for Apache HTTPD 2.1
Retrieved from "https://wiki.yobi.be/index.php?title=NSLU2&oldid=6806"