To use “Shared Folders” in VirtualBox, the user should install VirtualBox guest additions:
(1) Select Devices -> Insert Guest Additions CD image. If the VirtualBox prompts:
Unable to insert the virtual optical disk C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso into the machine CentOS.
Would you like to try to force insertion of this disk?
Count not mount the media/drive 'C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso' (VERR_PDM_MEDIA_LOCKED).
It means the Devices -> CD/DVD DEvices already has ISO file. Please inject it, and try Insert Guest Additions CD image again.
(2) Mount the ISO file:
mount /dev/cdrom /mnt
(3) Install the VirtualBox guest additions (Take Linux as an example):
cd /mnt
./VBoxLinuxAdditions.run
You may also need to install bzip2, gcc and kernel files to install guest additions successfully. When meeting errors, please refer /var/log/vboxadd-install.log for detail info.
Thank you for this post!
This simple little action fixed my problem. Thank you for sharing! 🙂
Straight to the point.
Many thanks.
(Something is happening at virtualbox. 3 people asking the same in a row in just 2 weeks and this post is 2 yrs old).
Also fixed the same issue in Ubuntu. Thanks.
This worked perfectly on my VM. Thanks!
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Worked for me. Thanks!
Thank you! It wasn’t obvious that the guest additions was mounted (as I’m using the CLI and didn’t consider it was already in /dev/cdrom) so I did the following first (In Ubuntu)
1. Ran : sudo apt-get install linux-headers-$(uname -r) build-essential dkms bzip2 perl
2. Reboot:
3. Above instructions to mount and run the Guest Additions installer
4. Profit 😉
For CentOS this worked for me as well
1. yum groupinstall “Development Tools”
2. yum install kernel-devel epel-release dkms
3. Restart
4. Above instructions to mount and run the Guest Additions installer
5. Profit 😉
Thank you!
Thank you very much, this was the answer to a long search.
Thank you very much, trying to get the Guest Additions to work has caused much frustration, but your instructions worked perfectly.
thanks for a lot it is fixed in kali
Thank you, this really helped me, I watched a bunch of videos and was unable to fix the issue until I arrived here.
Still works like a champ 🙂 Thanx for the info !!!
Lifesaver – works perfect!
Thanks lot man. You saved me !