update README.md
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101
README.md
101
README.md
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The APU is a Linux box to be used as a control box at LIN sample environment
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servercfg/ contains the configuration files for all boxes
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`servercfg/` contains the configuration files for all boxes
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to_system/ contains the files to be installed in the system
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`to_system/` contains the files to be installed in the system
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## config files
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@ -86,72 +86,67 @@ available on control boxes (MLZ type) only. must therefore not be present on bar
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## Installation of a Fresh Control Box or bare APU
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### Tools / Resources needed
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#### progress bar
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On mac use ``brew install pv`` to install. If you do not want it, you may leve it out,
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it is a matter of convenience. In this case omit ``| pv `` in the commands
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## install image by means of the USB stick BOOT_TINY
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The stick has TinyLinux on it and some additional scripts
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If you do not have one, you may create it logging to an other box as root
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If you do not have one, you may create it from another box
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### a) create a USB stick with TinyLinux (omit if you have the stick already)
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to verify that /dev/sdb is your stick, use the following command before and after plugging the stick
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log in as root/FrappyLinse to an apu box
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```
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apu> cd aputools
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apu> bash mkusb.sh
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... you are asked to give the device name from a list (typically sdb) ...
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```
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You are asked to give the device name from a list (typically sdb)
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before it writes to the stick.
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### b) mount with TinyLinux from USB stick
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### b) boot with TinyLinux from USB stick
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Connect a Mac with an USB to serial adapter (and null-modem!).
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```
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mac> screen /dev/tty.usbserial-130 115200
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```
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Do not yet connect LAN, plug USB stick and start the box, wait for prompt 'tc@box:'
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Do not yet conenct to LAN, if the box is not yet registered to PacketFence.
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Plug USB stick and start the box, wait for prompt 'tc@box:' and cd into BOOT_TINY
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```
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apu> cd /media/BOOT_TINY (or /media/CENTOS_APU)
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apu> sh reg
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cd /media/BOOT_TINY
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```
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### c) Determine address/name for registering in PacketFence
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```
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sh reg
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```
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enter new hostname (HWaddr will be on the output)
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register to PacketFence (if not yet done) and set role to sinq-samenv
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connect LAN to rightmost socket on a bare APU or the leftmost socket an a control box
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register to PacketFence and set role to sinq-samenv
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connect LAN to rightmost socket on a bare APU or the leftmost socket on a control box
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### d) Copy Image to APU SSD
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```
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sh write_to_ssd
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```
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apu> sh tiny
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...
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some random art images are shown ...
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...
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inet addr:129.168.1.43 Bcast:192.168.1.255 Mask:255.255.255.0
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inet addr:127.0.0.1 Mask:255.0.0.0
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```
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images from l_samenv@samenv:boxes/images:
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apumaster_2022-11-09.lz4
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apumaster_2024-01-18.lz4
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which image?
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```
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Use the displayed ip address for the following step.
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* Enter the image you want to write (typically the last one).
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* It will take around 10 mins to write the image.
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* remove the stick, power off/on (or do `sudo reboot now`)
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### c) Copy Image to APU SSD
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Note that the images are not part of the git repo.
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```
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mac> cd ~/switchdrive/apu/images
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mac> dd if=apumaster.lz4 bs=512k | pv | ssh root@192.168.1.43 "lz4 -d | dd of=/dev/sda bs=512k"
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```
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(you are asked for root password, which is root, ``| pv `` may be omitted)
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remove the stick, power off/on
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### e) Install Services
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login with root/FrappyLinse
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```
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@ -168,29 +163,11 @@ enter host name:
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DONE!
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### d) Cloning an Image from an Existing Box
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### f) Cloning an Image from an Existing Box
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Use (b) above to boot from TinyLinux (replace the IP address by the one from the box!)
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First make sure that a copy of the last apumaster.lz4 is saved with its date.
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Use (b) above to boot from the BOOT_TINY USB stick
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```
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mac> ssh root@192.168.1.43 "dd if=/dev/sda bs=512k | lz4" | pv | dd of=apumaster.lz4 bs=512k
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$ sh clone
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```
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### e) Appendix
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Source of scripts on TinyLinux:
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```
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apu> cat tini.sh
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tce-load -wi nano
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tce-load -wi lz4
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tce-load -wi openssh
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sudo /usr/local/etc/init.d/openssh start
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sudo chpasswd << EOF
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tc:tc
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root:root
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EOF
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ifconfig | grep 'inet addr'
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```
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You are asked
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