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Install Folding@Home on OpenBSD 4.6
This HOWTO shows how you can install Folding@Home using Linux emulation on OpenBSD 4.6.
The basic process is:
Before we can even think about running Folding@Home we need to install OpenBSD 4.6 first.
The fine people of the OpenBSD project have written an excellent installation manual,
which we'll follow to get our OpenBSD 4.6 system up and running.
Once the freshly installed system is has been rebooted, we can start to set it up so we can start folding.
Run through the afterboot instructions, and add a user account for yourself if you haven't done so using
the new OpenBSD installer. We'll create a user account to fold under later, before we install the
Folding@Home client with finstall.
Step 1.1: Install bsd-get
After we've installed OpenBSD I always like to install bsd-get, as I'm a long time Debian GNU/Linux user,
it gives me a nice apt-get like method to install OpenBSD packages.
First we'll install wget via pkg_add, after which we'll use it to download bsd-get:
# /usr/sbin/pkg_add -r ftp://ftp.wu-wien.ac.at/pub/OpenBSD/4.6/packages/i386/wget-1.11.4.tgz # wget http://linuxminded.nl/software/bsd-get/bsd-get -O /usr/local/sbin/bsd-get # chmod u+x /usr/local/sbin/bsd-get # bsd-get update ftp -o /root/.bsd-get.index ftp://ftp.wu-wien.ac.at/pub/OpenBSD/4.6/packages/i386/index.txt Trying 126.96.36.199... Connected to ftp.wu-wien.ac.at. 220 (vsFTPd 2.0.7) 331 Please specify the password. 230 Login successful. Remote system type is UNIX. Using binary mode to transfer files. 200 Switching to Binary mode. 250 Directory successfully changed. Retrieving pub/OpenBSD/4.6/packages/i386/index.txt local: /root/.bsd-get.index remote: index.txt 150 Opening BINARY mode data connection for index.txt (414345 bytes). 100% |*******************************************************| 404 KB 00:01 227 File send OK. 414345 bytes received in 1.10 seconds (367.13 KB/s) 221 Goodbye.Now that we have bsd-get up and running we can use it to install additional packages.
Step 1.2: Install additional packages
Some packages you can likely not live without or are simply very usefull to have installed:
# bsd-get install bash-4 # bsd-get install screen-4.*p1.tgz # bsd-get install rsync-3 # bsd-get install lsofNow we're ready to install the Linux emulation.
Step 2: Install Linux emulation
Getting the Linux emulation installed on OpenBSD is quite easy as described in the OpenBSD FAQ:
Running Linux binaries on OpenBSD.
The GENERIC OpenBSD kernel already has Linux emulation support, you only need to enable it:
# sysctl kern.emul.linux=1 kern.emul.linux: 0 -> 1To also have Linux emulation enabled at boot, set kern.emul.linux=1 in /etc/sysctl.conf:
# cat /etc/sysctl.conf | sed 's/#kern.emul.linux=1/kern.emul.linux=1/' > /etc/sysctl.conf.new # diff -u /etc/sysctl.conf /etc/sysctl.conf.new --- /etc/sysctl.conf Wed Mar 12 17:28:24 2008 +++ /etc/sysctl.conf.new Sat May 3 22:26:30 2008 @@ -42,5 +42,5 @@ #kern.emul.bsdos=1 # enable running BSD/OS binaries #kern.emul.freebsd=1 # enable running FreeBSD binaries #kern.emul.ibcs2=1 # enable running iBCS2 binaries -#kern.emul.linux=1 # enable running Linux binaries +kern.emul.linux=1 # enable running Linux binaries #kern.emul.svr4=1 # enable running SVR4 binaries # mv /etc/sysctl.conf.new /etc/sysctl.confYou'll need to install the Fedora base package which install the libraries that are used by Linux executables:
# bsd-get install fedora_base Going to install 1 packages: fedora_base-4.0p5.tgz Do you want to continue? (yes/no) [yes]: yes /usr/sbin/pkg_add -r ftp://ftp.wu-wien.ac.at/pub/OpenBSD/4.6/packages/i386/fedora_base-4.0p5.tgz fedora_base-4.0p5: completeNow let's install Folding@Home.
Step 3: Install Folding@Home
We'll use Ivo "Ivoshiee" Sarak's finstall to install the Folding@Home client. It's a nice bash script
which allows you to easily install the Folding@Home client (or several instances of the single core
client if you have multiple CPUs), an init script and (optionally) the third party tools qd and fpd.
We won't run Folding@Home as root, but under a dedicated user account used only to run the
Folding@Home client. First we need to create the account:
# adduser folding Couldn't find /etc/adduser.conf: creating a new adduser configuration file Reading /etc/shells Enter your default shell: bash csh ksh nologin sh [ksh]: bash Your default shell is: bash -> /usr/local/bin/bash Default login class: authpf daemon default staff [default]: Enter your default HOME partition: [/home]: Copy dotfiles from: /etc/skel no [/etc/skel]: Send message from file: /etc/adduser.message no [no]: Do not send message Prompt for passwords by default (y/n) [y]: Default encryption method for passwords: auto blowfish des md5 old [auto]: Use option ``-silent'' if you don't want to see all warnings and questions. Reading /etc/shells Check /etc/master.passwd Check /etc/group Ok, let's go. Don't worry about mistakes. There will be a chance later to correct any input. Enter username : folding Enter full name : Folding@Home user Enter shell bash csh ksh nologin sh [bash]: Uid : Login group folding [folding]: Login group is ``folding''. Invite folding into other groups: guest no [no]: Login class authpf daemon default staff [default]: Enter password : Set the password so that user cannot logon? (y/n) [n]: y Name: folding Password: **** Fullname: Folding@Home user Uid: 1001 Gid: 1001 (folding) Groups: folding Login Class: default HOME: /home/folding Shell: /usr/local/bin/bash OK? (y/n) [y]: y Added user ``folding'' Copy files from /etc/skel to /home/folding Add another user? (y/n) [y]: n Goodbye!Note: It's important to set the folding users shell to bash because the finstall script contains bashisms
and thereby only runs correctly in bash.
We can now login to the folding account and give it a prettier prompt:
# su - folding -bash-4.0$ echo "PS1='\u@\h:\w\$ '" >> .profile -bash-4.0$ echo "export PS1" >> .profile -bash-4.0$ . .profile folding@vmware-openbsd:~$And finally install the Folding@Home client:
folding@vmware-openbsd:~$ wget http://ra.vendomar.ee/~ivo/finstall --23:07:06-- http://ra.vendomar.ee/~ivo/finstall => `finstall' Resolving ra.vendomar.ee... 188.8.131.52 Connecting to ra.vendomar.ee|184.108.40.206|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 164,110 (160K) [text/plain] 100%[==================================================>] 164,110 232.89K/s 23:07:07 (232.43 KB/s) - `finstall' saved [164110/164110] folding@vmware-openbsd:~$ chmod u+x finstall folding@vmware-openbsd:~$ ./finstall [...snip...]After finstall is done downloading and installing we can let root use the installService script to have
the Folding@Home client started at boot time:
folding@vmware-openbsd:~/foldingathome$ logout # bash ~folding/foldingathome/installService Installing FAH as a service... What user shall I run FAH as? folding # tail -3 /etc/rc.local /etc/rc.shutdown ==> /etc/rc.local <== #Start up Folding@Home Service echo "Starting Folding@Home Service..." su - folding -c "/home/folding/foldingathome/folding start" ==> /etc/rc.shutdown <== su - folding -c "/home/folding/foldingathome/folding stop" echo "Sleeping 20 seconds to allow Folding@Home service time to shut down properly..." sleep 20Note: This script needs to be run by root, because it modifies /etc/rc.local and /etc/rc.shutdown.
Fortune: Q: How many hardware engineers does it take to change a light bulb? A: None. We'll fix it in software. Q: How many system programmers does it take to change a light bulb? A: None. The application can work around it. Q: How many software engineers does it take to change a light bulb? A: None. We'll document it in the manual. Q: How many tech writers does it take to change a light bulb? A: None. The user can figure it out.