Author Archives: osde8info

About osde8info

free libre (open source !) advocate

VirtualBox CentOS 8 guest additions install

To get VirtualBox guest additions to install in CentOS 8 you first need to install

# dnf install epel-release
# dnf install tar bzip2 kernel-devel-$(uname -r) \
kernel-headers perl gcc make elfutils-libelf-devel

then insert the guest additions cd and if not running X manually mount it

# mkdir /media/iso
# mount /dev/cdrom /media/iso

then run

# cd /media/iso
# ./


instagram #smn #bmn 2FA gotcha

If you use the same mobile number to turn ON 2FA on a second instagram account it DISABLES 2FA on the first instagram account.

So you need different mobile numbers for each instagram account you have to avoid getting the following warning :

You turned off two-factor authentication for this Instagram account because you reused the same phone number to confirm another account.

This means you won’t need to enter a security code when you log in.

If you want to turn it back on, you’ll need to use a unique phone number for each account.

CentOS 7 & 8 IBM Red Hat 7 & 8 KDE install

CentOS 7 & IBM Red Hat 7 KDE desktop

# yum grouplist

# yum groupinstall KDE

CentOS 8 IBM Red Hat 8 KDE desktop

# rpm -Uvh
# dnf config-manager --enable PowerTools
# dnf config-manager --enable epel-playground
# dnf group install "KDE Plasma Workspaces"
# dnf group install kde-desktop
# dnf group install kde-apps

See also

IBM Red Hat 7 & KDE desktop


Some intros and tutorials for some #freelibre #opensource #desktop tools

Intros and tutorials for some feature rich, stable software that is 100% free for personal and commercial use. These programs have been developed by hundreds of talented designers, programmers, and developers from all over the world, and continue to be actively developed and improved. The code for these programs has been made freely available for anyone and everyone to use and modify, with very open and transparent licenses that give you, the end user much more freedom than you get when using paid/closed/proprietary software.