OSDev.org

I went through the Barebones tutorial on the wiki and I created a os.iso file with grub-mkrescue. I then uploaded the file to my ftp server and downloaded it to the computer I run VirtualBox on. When I tried inserting the iso file into the dvd/cd drive of my virtual machine it gave the error code VERR_NOT_SUPPORTED
Full error message:
[spoiler]
Resultaat code:
VBOX_E_IPRT_ERROR (0x80BB0005)
Component:
Medium
Interface:
IMedium {53f9cc0c-e0fd-40a5-a404-a7a5272082cd}
Callee:
IVirtualBox {c28be65f-1a8f-43b4-81f1-eb60cb516e66}
[/spoiler]

I have also tried it with a .img file. But no luck.

These are my specs:
VirtualBox version 4.1.0 r73009
Selected Options for the virtual machine
Operating System: Other, Other/Unkown
RAM: 128mb
Processors: 1
VT-x/AMF-V: on
Nested Paging: on
Video Memory: 9mb
Monitors: 1
Storage Tree:
+IDE controller
|
+--TestOs.vdi(1gb)
+--Empty CD/DVD station

Network: off
Usb: off
Shared Directories: off

Does anybody have any ideas.
The OS I developed in was running inside the same virtualbox instance just a different virtual machine it runs Debian.

Its often an issue with a corrupted iso image (not a multiple of sector size etc). Anything else it at least tries to run and then comes up with an unbootable disk error from the bios. Did you upload and download from your ftp server in binary rather than text mode?

Regards,
John.

My ftp client can switch between the modes but doesn't show me in which it is currently. I'll try it with it switched.

Nope doesn't work. I made sure to both upload and download in binary mode. No such luck D:

Now here's something interesting. I installed KDE and qemu to test it on the VM I made it in. On QEMU it works perfectly. Strange...

AFAIK, virtualization is supported only for 64-bit OSes. If you've selected 32-bit type of OS in VBox, it wouldn't be available. If your OS isn't 64-bit, check the type of OS in VBox and change it to 32-bit.

VirtualBox is set to Other/Other. I also tried with Linux/Ubuntu(32 bit) my host pc is 32bit.