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At October 1 HP released HP Service Pack for ProLiant 2015.10.0. The SPP contains firmware and drivers for HP ProLiant servers. One of the reasons to frequently update your firmware and drivers is support by HP. Organ-on-chip devices are intensively studied in academia and industry due to their high potential in pharmaceutical and biomedical applications. However, most of the existing organ-on-chip models focus on proof of concept of individual functional units without the possibility of testing multiple experimenta organ-on-a-chip systems: translating concept into practice.

So I have my unRAID server serving PXE requests, now what? Well: install CentOS of course!
CentOS is an Enterprise-class Linux Distribution and they have created some nice tools to be able to create a PXE installation environment, here is how I did it.


Setting up Anonymous FTP
Fist we need an FTP server and unRAID has the standard vsftpd build in, we'll use that.

But there are some steps to take to make it compatible with the CentOS installer.
By default the only user allowd is 'root' so first we must change that.
  1. First we need a directory where our 'Anonymous' FTP users go when they connect, run: mkdir -p /mnt/user/SERVER/FTP_ROOT/
  2. Create a anonymous ftp user, run: useradd ftp -m
  3. If you get an error that the user already exists, create a homefolder for it: mkdir /home/ftp
  4. Copy the unRAID default vsftpd.conf file to your flash drive, run: cp /etc/vsftpd.conf /boot/config/(I like editing in Windows, but if you are really determent you can do it in vi)
  5. Open the file towerflashconfigvsftpd.conf in your favorite text editor (like Windows notepad, but I prefer Notepad2)
  6. Edit it, so it looks like this:
  7. #
    connect_from_port_20=YES
    # anonymous logins
    anon_root=/mnt/user/SERVER/FTP_ROOT
    #
    local_enable=YES
    local_root=/mnt/
    #
    guest_enable=NO
    anon_other_write_enable=NO
    #
    syslog_enable=YES
    xferlog_enable=NO
    # Misc.
    ls_recurse_enable=YES
  8. Now save it back to its drive and run the command: cp /boot/config/vsftpd.conf /etc/
  9. Also add this line to your 'go' script (towerflashconfiggo)
  10. Now restart the FTP server, run the command: /etc/rc.d/rc.inetd restart
  11. You should be able to connect to your server using an FTP client, for Windows I recommend the free application FileZilla. Just fill in your server name or IP adress and hit connect.
  12. If you already put files in this directory you can make them visible by setting them 'World readable', do: chmod -R -c 755 /mnt/user/SERVER/FTP_ROOT/

Getting the files

Although it is possible to install CentOS by loading the ISO and installing it form there, its faster and more practical to use the separate packages from the /centos//os/ directory because you then only have to load what you need from your local FTP server, witch makes the installation faster and easy to script.
I will be downloading the 6.0 distribution since that is the current build at this moment.Download a.p. van den berg port devices driversDownload
  1. Create a directory structure for your files: mkdir -p /mnt/user/SERVER/FTP_ROOT/CentOS/6.0/os/i386/
    Optionally you can also create a /os/x86_64/ directory if you need the 64bit version
  2. Find a mirror nearby from the CentOS public mirror list, find one that has RSYNC support, copy the link to the RSYNC link to you clipboard.
  3. Now run the command: rsync -avSHP rsync://mirror.near.you/centos/6.0/os/i386/ /mnt/user/SERVER/FTP_ROOT/CentOS/6.0/os/i386/Make sure you replace the red part with the link you have in your clipboard.For the x64 edition change the link and the path accordingly.
  4. Now let rsync download all the required files, no worry's; if the connection drops during transmission it will pickup where it left of. Depending on your connection this may take a while, the download is about 4.37GB
  5. Now we need to copy 2 of the files from here to our 'PXE images' directory, first create a directory, run: mkdir -p /mnt/user/SERVER/tftpboot/images/CentOS/i386/6.0/
  6. Then copy over the files: cp /mnt/user/SERVER/FTP_ROOT/CentOS/6.0/os/i386/images/pxeboot/* /mnt/user/SERVER/tftpboot/images/CentOS/i386/6.0/If it say's 'cp: cannot stat `/mnt/user/SERV....etc' it means your download is not completed yet and the directory is empty. you might wanna try this step later or download the files from an FTP server (also in the mirror list)
  7. Make them 'world readable' by running: chmod -R -c 755 /mnt/user/SERVER/FTP_ROOT/
Modify your PXE config file
Now we have downloaded the files (or your download is still running in the background) we can modify our PXE menu to be able to boot to the CentOS installer.
  1. Open the default file with your favorite text editor If you have followed my post about PXE on unRAID it is in TOWERservertftpbootpxelinux.cfg
  2. Add these lines to it: LABEL CentOS 6 x86 Manual MENU LABEL Install CentOS 6 x86 manually from FTP KERNELimages/CentOS/i386/6.0/vmlinuz APPEND initrd=images/CentOS/i386/6.0/initrd.img ramdisk_size=100000 ks=ftp://x.x.x.x/CentOS/6.0/os/i386/config/manual.cfgMake sure you replace the x.x.x.x with the IP or hostname of your FTP server.
  3. You can now start the installation via PXE, only you need to select all the options manually (Local media or URL, location of kickstart script, etc) we don't want that, so let's creator some kickstart scripts.


Now you may have noticed I refer to a ftp://x.x.x.x/CentOS/6.0/os/i386/config/manual.cfg file, and if you have try'd to start the CentOS installation you might have noticed the installation asks for the correct location, so lets create some.
  1. Create a folder structure to hold your CentOS kickstart configuration files, run: mkdir /mnt/user/SERVER/FTP_ROOT/CentOS/6.0/os/i386/config/
  2. Open your favorite editor and create a new file with the following contents, this will create our 'manual' installation, it just sets the FTP path, the keyboard layout and assigns a DHCP address to the fist ethernet adapter it finds. For more information about kickstart scripts just do a google search for 'kickstart centos' or 'kickstart anaconda' and you will find a massive amount of websites and tutorials or take a look at the CentOS wiki.# Kickstart file for a manual FTP install. install url --url ftp://x.x.x.x/CentOS/6.0/os/i386/ lang en_US.UTF-8 keyboard us # Start the network driver and assign the client a dynamic IP network --device eth0 --bootproto dhcpMake sure you replace the x.x.x.x with the IP or hostname of your FTP server
  3. Save the file to your server in towerSERVERFTP_ROOTCentOS6.0osi386config and name it: manual.cfg
  4. Make sure the files in the FTP directory are 'world readable' run chmod -R -c 755 /mnt/user/SERVER/FTP_ROOT/once more.
  5. Test the installation, you should now get a step-by-step installation of CentOS that downloads all the files of the FTP server when it needs to.


As I said, there are very elaborate sites about using kickstart scripts. This is a very nice one I found by 'Security Nut' aka Damian Tommasino it's a basically installing a complete (bare server) OS completely automatic!
I've modify'd it a bit to suit my needs, but you can always try the original.
WARNING! If you uncomment the red section it will wipe your hard disk!
install
lang en_US.UTF-8

# Start the network driver and assign the client a dynamic IP

rootpw --iscrypted
# Enable the firewall and open port 22 for SSH remote administration

authconfig --enableshadow --enablemd5

timezone --utc Europe/Amsterdam
# Create the bootloader in the MBR with drive hda being the drive to install it on

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# Wipe all partitions and build them with the info below
# ***hda may be different on your machine depending on the type of drives you use***
#part /boot --fstype ext3 --size=100
#part swap --size=2000

# Install the Base and Core software package groups for a minimal install, plus OpenSSH server & client
@Core
openssh-clients

Download A.p. Van Den Berg Port Devices Driver Ed

A range of engine and generator controllers from Lovato are distributed locally by ElectroMechanica (EM) for voltage and current control and engine protection. Features include programmable inputs and outputs and alarm properties.

The range of engine protection controllers allow for starting with or without a power key switch, with front LED indicators for engine alarm conditions and diagnostics. A range of standalone genset controllers are also available for engine control.

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Automatic mains failure genset controllers allow for automatic generator start-up and load switching to a standby emergency power source in case of mains failure. Other products include paralleling controllers, remote units, communication devices, accessories, and software.

Both the controller front and internal display frame seal have IP65 protection

Lovato engine and generator controllers feature extensive functionality to satisfy all application requirements. Power supply ranges from 12 to 24 V DC, with communication interfaces including RS232, RS485, USB, and Ethernet.

The optical port on the panel front allows for PC, smartphone, or tablet interface via a standard USB or Wi-Fi point for programming, diagnostics, and data download, with the added advantage of not having to remove power to the electric panel.

Both the controller front and internal display frame seal have IP65 protection. With the addition of a UV film, this means that the controller can be used outdoors. The slim frame profile and reduced total depth simplify installation of these controllers in compact electric panels.

Van Den Berg Band

The rear of the controller has four fitting slots to secure cables connected to the terminals with cable ties in a tidy manner inside the electric panel. A plastic retainer is also provided as standard in order to keep the expansion modules in place when installed in applications with strong vibrations.

“An extensive selection of modules is available to enhance the functionality of these Lovato controllers,” EM Johannesburg Technical Manager Artur Socha reveals. These expansion modules include a GPRS/GSM modem configured automatically by the genset controller. “Another major feature is the ergonomic design, and the attention to detail in terms of quality,” he concludes.

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Lovato is one of the original international brands distributed by EM, established in 1984 by CEO Dave van den Berg. The company’s guiding motto to date has always been to supply the right product at the right price, without compromising on quality or efficiency.