Archive for the ‘VMware’ Category

Upgrading ESXi 4.0 to 4.1 from CLI

Monday, November 8th, 2010

Today I successfully upgraded 4 ESXi hosts to VMware ESXi 4.1. Since I do not have Virtual Center (they are mainly lab machines), I found very good hints about hot to do it from CLI via SSH. And as usual, to avoid forgetting how I did it’s good ...

Configuring layer two VM as inline IPS in VMware ESX

Wednesday, November 19th, 2008

To setup properly the portgroups in VMware vSwitching environment, we had to create two portgroups per vSwitch as depicted below: Reason for this configuration is that "operative portgroups" where servers and machines are connected should not be in Promiscuous mode to avoid sniffing other machines' traffic, while ...

OpenFiler 2.3 Troubleshooting.

Monday, October 27th, 2008

OpenFiler is a great system to implement NAS (Network Attached Storage) in a network using general purpose hardware. On the 'Net you can find great tutorial about how to setup with VMWare ESX servers, but it contains one important mistake: When you define the ACL the netmask for every host is /32 ...

Error installing VMWare 2.0 on Windows 2003 Server

Friday, October 17th, 2008

I was trying to installing VMWare Server 2.0 but it kept getting this error System Administrator has set policies to prevent this installation.Quick and dirty solution in 8 steps: Click Start -> Control Panel Open Administrative Tools Open Local Security Settings Click Software Restriction Policies If no software restrictions are defined, right click the Software Restriction ...

Installing VMWare Server 1.0.5 tools on CentOS 5.1 guest

Tuesday, April 22nd, 2008

Running vmware-config-tools.pl script on a guest CentOS 5.1 virtual machine in a VMWare Server 1.0.5 environment will not find the proper kernel modules, so it will prompt you to compile the modules. To do this you need a compiling environment (namely gcc) and the C kernel headers installed. If your machine is ...

Eternally SCSI Spinning Disk…

Sunday, January 27th, 2008

VMWare Server 2.0 Beta. You define a Linux virtual machine (or import a machine defined elsewhere) and it stands  forever during boot in "SCSI Spinning Disk". This is due to the fact that machine has been defined using BusLogic SCSI while it should be using LSI. Change Virtual Disk Controller Type to LSI ...

VMWare Beta Server 2.0 – kernel panic on Linux as guest

Sunday, January 27th, 2008

Although unsure about the reasons why this happened, I'm reporting this since it might be useful in future. Situation: have a working small (6 MB) Linux Live CD with kernel 2.6.8-1 running in VMWare workstation, defined as Linux 2.2.x Kernel guest OS. Tried same in VMWare Free Server 2.0 Beta defining guest ...

Expand a VMWare Virtual Disk Size

Friday, December 28th, 2007

Regardless of VMWare Version you're using, you should have the command line tool vmware-vdiskmanager This useful command line tool can be used for many operations (vmware-vdiskmanager --help) including expanding a Virtual Disk without losing data contained. The syntax for expanding is: vmware-vdiskmanager -x 36Gb virtual_disk_name.vmdk If you have partitions within the disk, remember that the ...