Thursday Mar 20, 2014

VirtualBox without GUI

I think there are 2 levels of GUI-less-ness in virtualization software like VirtualBox.
Today I want to write about 1st level of GUIless-ness in VBox.

One can use VBoxManage CLI tool or open source Web app to modify/start/stop VBox guests.
After starting up VBox guest, one can attach to guest's console remotely by using RDP tool like WIndows OS's
"Remote Desktop".

But......., you may ask,  what about if I goofed when modifying grub.conf and guest doesn't boot with default
GRUB entry? Can I attach to guest's console before grub selection screen times out?

One way to achieve this is to make BIOS screen timeout longer like:

$ VBoxManage modifyvm "OracleSolaris11_1" --bioslogodisplaytime 60000

Now, if you attach within 60 seconds , you will get this screen.

Now, if you hit F12 , you will get this. You don't do this when you edited grub.conf wrongly but I hope you get the idea.

My "Remote Desktop"'s title bar says it's localhost:3390 but it's actually tunneled to remote Solaris server. :)






Tuesday Nov 19, 2013

VirtualBox 'yum' channels

There are 2 VirtualBox yum channels as the page below says.

Linux_Downloads – Oracle VM VirtualBox

Users of Oracle Linux 5 and 6 can use the public yum  repository

Linux_Downloads – Oracle VM VirtualBox

Users of Oracle Linux / RHEL can add  the Oracle Linux repo file to /etc/yum.repos.d/

You might wonder what the difference is. I casually browsed both directories via ftp and noticed that VirtualBox-3.2.x86_64 is still there only on the latter repo. For versios 4.0 and above, I don't find any difference in minor version numbers.

 

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The views expressed on this blog are my own and do not necessarily reflect the views of Oracle.

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