Understanding Virtualbox network interfaces Rumi, March 17, 2016 To create and experiment with all kinds of networks without the risk (or taking the trouble) of creating an actual one. And here is where VirtualBox excels by providing several options for networking out of the box. VirtualBox installs an additional NIC (Network Interface Card) on your host computer to… Continue Reading
Proxmox 4 Installation Issue on LSI Raid Systems Rumi, March 4, 2016 I was installing Proxmox 4.X on my new server systems having SAS disk with LSI MPT2 Raid controller. The installation went just perfect, however, after post installation boot- I was getting errors as below similar screenshot- After googling a lot, found the solution. Here goes it- Continue Reading
Virtualbox Disk Reduce or Disk Compact Rumi, February 9, 2016February 9, 2016 You have to do the following steps: 1. Run defrag in the guest (Windows only) Nullify free space: With a Linux Guest run this: sudo dd if=/dev/zero of=/bigemptyfile bs=4096k sudo rm -rf /bigemptyfile Or: telinit 1 mount -o remount,ro /dev/sda1 zerofree -v /dev/sda1 Or sudo apt-get install secure-delete sfill -f -z… Continue Reading
Cloning Openvz Proxmox PVE container guest machine Rumi, November 4, 2015December 13, 2016 I first created a ‘template’ vm containing all stuff I need and using a temporarily ip adres. In the network config file of eth0 (/etc/sysconfig/network-scripts/ifcfg-eth0) I comment out the HWADDRESS line, else it will not come up with another mac address… Stop this ‘template’ vm as it is just used… Continue Reading
Allow NFS attachment on Proxmox OpenVZ containers Rumi, November 4, 2015 Prepare the container To allow a container to use NFS filesystem, you will need to start it with “nfs” feature enabled. If the container is running while you set the –features nfs:on, you will need to reboot it. # vzctl set 101 –features “nfs:on” –save # vzctl start 101 After… Continue Reading
Proxmox VM path Rumi, May 7, 2015 Backups /var/lib/vz/dump ISOs /var/lib/vz/template/iso Images /var/lib/vz/images Templates /var/lib/vz/template/cache Continue Reading
Appliances and OS Templates Rumi, June 6, 2014 For PVE & OpenVZ templates- http://openvz.org/Download/template/precreated PVE appliances- http://pve.proxmox.com/wiki/Get_Virtual_Appliances http://pve.proxmox.com/wiki/Category:Virtual_Appliances Continue Reading
Set date/time permanently on Virtualbox Guest Rumi, June 6, 2014October 5, 2019 First you need to ssh to the server and be root and then do these step by step: 1. Set the date/time as following format date -s “2 OCT 2013 18:00:00″ 2. Set the proper Timezone for your area- # cd /etc # ln -sf /usr/share/zoneinfo/EST localtime 3. Set it… Continue Reading
Fix Date Time on PVE OpenVZ Guest machine Rumi, June 6, 2014 Stop VE vzctl stop 101 in HD node, run: vzctl set 101 –capability sys_time:on –save Start VE: vzctl start 101 Enter VE: vzctl enter 101 mv /etc/localtime /etc/localtime.old ln -s /usr/share/zoneinfo/Asia/Dhaka /etc/localtime date 092115442006 (09 = Month, 21 = day, 15 = hour, 44=minutes, 2006 = year) Run date to… Continue Reading
VBoxHeadless Running Virtual Machines With VirtualBox On A Headless Debian/ubuntu Server Rumi, August 3, 2012December 4, 2017 I have implemented this on Debian 6 (Squeeze system) with the IP address 192.168.0.100 where I’m logged in as root. Installing VirtualBox To install VirtualBox 4.1 on our Debian server, we open /etc/apt/sources.list… added this line- deb http://download.virtualbox.org/virtualbox/debian squeeze contrib non-free Use appropriate OS source list from https://www.virtualbox.org/wiki/Linux_Downloads Then we… Continue Reading