I have a Linux virtual box and want to install Guest Additions. I've successfully mounted the iso. But now what...?
How can I access the mounted cd-rom in the terminal of the virtual machine as to install Guest Additions?
When I cd media then ls returns empty.
I added Internet connectivity following the instructions here:
Check connectivity: `sudo nmcli d`
If disconnected: `sudo nmtui` > Edit a connection, select network interface and choose "Automatically connect".
`sudo reboot now`
Test: `ping www.google.com`
I added bzip2: yum install bzip2
I also added GNOME GUI Desktop, according to these instructions:
yum group list
yum groupinstall 'Server with GUI'
systemctl enable graphical.target --force
Rebooted the Guest OS Oracle Linux 7.1
gnome-shell --version
Next, to mount in the media folder, I entered:
cd /;
mount /dev/sr0 /media;
cd /media
ls
This returns various files including VBoxLinuxAdditions.run. I ran ./VBoxLinuxAdditions.run, which returned "Kernel headers not found for target kernel":
uname -r and rpm -q kernel-devel indeed show different versions.
yum install kernel-headers-$(uname -r) kernel-devel-$(uname -r) couldn't find the packages. I then ran yum distro-sync in the hope to synchronize the versions. But there were still 2 different versions.
However, booting up the VM there now was a new option available: "Oracle Linux Server 7.6, with Linux 3.10.0-957.12.2.el7.x86_64" rather than "Oracle Linux Server (4.14.35-1818.3.3.el7uek.x86_64 with Unbreakable Ent" that I normally selected the virtual box boot menu.
I choose this option and kernel-headers and kernel-devel now were the same versions! yum install kernel-headers-$(uname -r) kernel-devel-$(uname -r) returned "already installed and latest version". It was using the same versions, so that was no longer the problem.
But ./VBoxLinuxAdditions.run now returned "This system is currently not set up to build kernel modules. Please install the gcc make perl packages from your distribution.".
I ran yum install build-essential gcc make perl dkms. And then after sudo reboot now it successfully installed Guest Additions!
mount | grep iso? You can try to mount it manually, on my guest (no oracle) commandscd /; mount /dev/sr0 /media; cd /mediawork (replace/dev/sr0with your virtual cdrom device).mount | grep isodoesn't return anything (just like the lastlsin the image doesn't return anything). How do I know what to replace/dev/sr0with? How do I know where I can find my virtual cdrom?dmesg | grep -i cd-romshows me[ 2.852493] sr 1:0:0:0: Attached scsi CD-ROM sr0. Note the lastsr0for the device name. But I don't know if this works on your oracle guest.