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Linux GUI resolution on Hyper-V VM.

July 05, 2019
Recently I decided to give the Windows virtualization tool Hyper-V a try.
Debian became my OS of choice for the test.

All went well, until I booted into the GUI.  The gues OS window was 1/3rd of the whole screen.

So, here is one way to fix it :

Open the file /etc/default/grub with your favorite text editor (vi for example).

Find the line :

GRUB CMDLINE LINUX_DEFAULT="quiet"

and change it to :

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash video=hyperv_fb:1920x1200"

 Just make sure that instead of 1920x1080 you type the desired resolution.

 Then run :

sudo update-grub 

The change will take effect after you reboot the guest OS.



Linux GUI resolution on Hyper-V VM. Linux GUI resolution on Hyper-V VM. Reviewed by stefzeer on July 05, 2019 Rating: 5

The Sex of Live-bearing fish

November 16, 2018
Of all known species of fish, only about 1% of all are viviparous, or livebearing.

Livebearers include some of the most common fish found in the trade today : Anableps, Goodeides, Guppies, Halfbeaks, Mollies, Mosquito Fish, Platies, and Swordtails, for example.

Determining the sex of live-bearing fish is very easy (compared to other types of fish).

On first look males are usually smaller and more colorful than females.

Males also posses an external sexual organ - gonopodium, which makes it easy to differentiate males from females.



The gonopodium is a modified anal fin which is used to fertilize eggs. In the male, the anal fix is rod-shaped, while the female has a traditional fan-shaped anal fin.

A male guppy :

A female guppy :



The Sex of Live-bearing fish The Sex of Live-bearing fish Reviewed by stefzeer on November 16, 2018 Rating: 5

GET FREE VIRTUAL MACHINE(s)

November 16, 2018
Hello,

You can get a 100$ credit for free on digitalocean.com. 

There you can spend it on creating a virtual machines (which digitalocean refers to as "droplets"). 
For example I've spent my 100$ on the following setup : 

  • 8 GB memory
  • 4 VCPUs
  • 160 GB SSD
  • 5 TB transfer.
  • Debian Linux installation.
Speaking of OS, you can choose between the following preloaded images.

  • Debian Linux 
  • Ubuntu
  • CentOS
  • Fedora
  • CoreOS
  • FreeBSD
Of course, you can use your own OS image.

This costs 40$/month, which means that for a 100$ I get this setup for two months.

Note that the 100$ you get as referral expire after 60 days.
That being said you better spend it on time :)

 To benefit from this 100$ bonus you have to register through my referral link below: 

You will get 100$ and I will get 25$.
GET FREE VIRTUAL MACHINE(s) GET FREE VIRTUAL MACHINE(s) Reviewed by stefzeer on November 16, 2018 Rating: 5

VTERM (CONSOLE) NOT WORKING

February 03, 2016

Log in the HMC CLI as hscroot and type:

#vtmenu

Select the lpar with the vterm problem to try to open console from here.

If you are still not prompted in AIX please follow the below steps:

From ssh session directly into the AIX LPAR, run these commands:

#lscons
/dev/null <<======= this should be vty0 (or whatever is marked as available in #lsdev -Cc tty);

#lsdev -Cc tty
vty0 available
vty1 defined
vty2 defined

#smitty console       

-> assign the console to /dev/vty0 (or whatever is marked as available in #lsdev -Cc tty);

Reboot after the console change. Things should be working again.
VTERM (CONSOLE) NOT WORKING VTERM (CONSOLE) NOT WORKING Reviewed by stefzeer on February 03, 2016 Rating: 5
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