I am trying to install Ubuntu Server on a computer that has no CD Drive and it is trying to detect a CD drive and fails whenever it cant find it.

2 Answers 2


You can install any of the bootable .iso ubuntu images using the guides for various systems here:


Just be sure to download and supply the path of the .iso image you wish to use when following the above instructions.


Working with Ubuntu 12.04 server. Trying to upgrade from 8.04 on an old but reliable server which can't boot from USB.

To get to where you are, I copied the contents of the .iso onto an ext3 disk (using rsync -a) and booted from this with grub using kernel=/vmlinuz, initrd=/initrd.gz and an appropriate root. Frustratingly, it tries to find the CDrom.

What I did next is failed the install, dropped to a shell and manually mounted the drive in place of the CDrom:

  mount /dev/hdb1 /cdrom

exited the shell and continued with the install.

Hope this helps.

(If I were starting from fresh, I'd just have the contents of the iso on a usb drive and follow the instructions for booting a usb install on a machine that needs help getting to a usb, but this was quick and worked, given that I was where I was!)

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