if you’re unable to install the broadcom sta driver on ubuntu 11.04, fire up synaptic and reinstall bcmwl-kernel-source
2011-04-29 18:29:50,089 WARNING: /sys/module/wl/drivers does not exist, cannot rebind wl driver
it should work now 
Tag Archive: ubuntu
Very easy, just add a repository and run apt-get install postresql-9.0 
Dctr Watson explains how:
Installing PostgreSQL 9.0 on Ubuntu 10.04
Run multiple versions of Perl from your home directory using Perlbrew!
One thing to know: Perl won’t compile if you have an encrypted home directory. 
Bug has been fixed but not exactly how and it hasn’t been put into the Ubuntu updates yet.
Bug has been fixed but not exactly how and it hasn’t been put into the Ubuntu updates yet.Thanks goes to Kang-min Liu for creating Perlbrew!!!!
The recommended way to install perlbrew is to run these statements in your shell:
curl -LO http://xrl.us/perlbrew
chmod +x perlbrew
./perlbrew installAfter that,
perlbrewinstalls itself to~/perl5/perlbrew/bin, and you should follow the instruction on screen to setup your.bashrcor.cshrcto put it in your PATH.
I installed Ubuntu Eucalyptus cloud (#UEC) on a couple of servers at home. I was naively expecting it to be similar to VMware. Oh I was wrong.
UEC is the Eucalyptus ‘cloud’ software running on Ubuntu servers. The instances would run under the KVM or Xen hypervisors. Ubuntu’s defaulted to running KVM but isn’t restricted by it.
“Eucalyptus is a software available under GPL that helps in creating and managing a private or even a publicly accessible cloud. It provides an EC2 compatible cloud computing platform and S3 compatible cloud storage platform…” Eucalyptus Beginner’s Guide
This is how a vm works in UEC:
You publish an image that you previously installed all the software you need (or you can download such an image). There can be as many instances of this image running as the hardware supports (spread across N number of backend Node Servers).
All instances are transient. As long as an image is running, it will have a physical presence.. but when it is shutdown, the instance is removed including any work performed in the instance.
“static” storage is available via a Storage Server. After you create an image but before you start it, you have the opportunity to attach storage to the instance.
Diagram courtesy of Eucalyptus Beginner’s Guide – UEC edition
While the management tools for UEC, and therefore Amazon EC2/EM, are primitive compared to VMware, it should be able to scale much higher with far less focus on which ‘virtual machine’ goes where.
I’ve been trying to get VMware ESXi 4 on my old MSI MS-7388 motherboard for a long time. No matter what I tried, neither the SATA controller on the motherboard or the add on SATA controller would be recognized.
Install VMware ESXi 4.0 on an unsupported motherboard (SATA controller must support AHCI):
- make sure the SATA controller(s) is set to AHCI in the computer’s BIOS
- download VMware ESXi 4 iso
- burn the iso to either a cdrom or a USB thumb drive (512mb minimum) using unetbootin
- boot the computer into VMware ESXi
- Before you’re prompted to hit Enter to begin, hit ALT-F1 which will get you to a console screen without a prompt
- Type “unsupported” followed by Enter
- When prompted for a password, just hit Enter
- Type “vmkload_mod ahci” followed by Enter. This will load in the driver for just about any AHCI compliant SATA controller
- Hit ALT-F2 to finish the installation
At this point VMware ESXi 4.0 will be installed but it won’t start when you reboot. This is because VMware won’t load the AHCI driver by default. So… we will have to tell it to load it automatically. You will need a Linux Live CD such as Ubuntu.
- Boot into Linux
- From the desktop you will need to mount the VMware partitions. In Ubuntu 8.04 and higher, you just need to click on the folders in the drop down menu
- Locate oem.tgz on the second VMware partition and overwrite it with this oem.tgz. It includes a system.map file telling VMware to load the AHCI driver
- reboot and boot into VMware ESXi
You should have a fully working VMware ESXi server installed and ready for you to setup virtual machines!
