[Solved] No bootable medium found!

[colin69]

Hello,
I'm trying to install Ubuntu on a Windows 10 machine.
When I click 'start' , I can see VB 6.0 starting, but then I get error "No bootable medium found! System halted"

the controller IDE points to the file VBoxGuestAdditions.iso

Please find attached the zipped log file (start > power off> extract VB log)

I found that error being referenced before in the forum, but could not find anything that could help me here.

[scottgus1]

00:00:03.762876 [/Devices/piix3ide/0/LUN#2/Config/] (level 5)
00:00:03.762878 Format <string> = "RAW" (cb=4)
00:00:03.762879 Mountable <integer> = 0x0000000000000001 (1)
00:00:03.762880 Path <string> = "C:\Program Files\Oracle\VirtualBox\VBoxGuestAdditions.iso" (cb=58)
00:00:03.762882 ReadOnly <integer> = 0x0000000000000001 (1)
00:00:03.762883 Type <string> = "DVD" (cb=4)

If I;m reading this right, it appears you don't have the Ubuntu ISO in the guest's CD drive. Take a shot at loading that ISO again.

[colin69]

um.. I'm afraid you'll have to educate me a bit.
I guess this .iso file came in that folder (C:\Program Files\Oracle\VirtualBox\) when I installed the program from the ubuntu website. There is no CD, of course, and the CD Drive is virtual.
I translate your sentence " you don't have the Ubuntu ISO in the guest's CD drive" as: "the .iso file is not in the right place.
How do I load the .iso file again, and how is it going to go to the right place?
Thanks.

[scottgus1]

Sure, glad to help.
Take a look here:

Mouse over click CD drive.png (52.85 KiB) Viewed 1600 times

Open the guest Settings page, click on the guest's Optical Drive. In the pop-up menu, click "Choose Disk Image..."

Browse to the Ubuntu installation ISO and select it.

Now start the guest.

[colin69]

Hi scottgus1.
Thank you very much for your help.
It took me a while to understanding you. With retrospect, it's very silly; it's just a problem of which word to emphasis in your written sentence.
When you wrote "it appears you don't have the Ubuntu ISO in the guest's CD drive", I focused on "in the guest's CD drive" i.e. I have the .iso file in the wrong place. Whereas I should have read with emphasis on "the Ubuntu ISO" meaning I do not have the right ISO file...
I am not sure why, but I indeed did not have the ubunto .iso file. I searched for a .iso file; the only one I found was that "VBoxGuestAdditions.iso", so I though that's the one I should point to. Once I got the "ubuntu-18.04.3-desktop-amd64.iso" instead (as you suggested), that resolved it.

[mpack]

Yes, you'll certainly have difficulty installing Ubuntu on any PC using only a VirtualBox Guest Additions CD!

Thanks for reporting back, and for being honest!