I'm doing an unattended installation of Ubuntu-14.04-server with a USB drive on different type of servers (HP Proliant ML110, ML310, ML350).
In some cases, the USB drive is incorrectly mounted on
/media instead of
/cdrom, making the installation process stop with the following message:
[ Detect and mount CD-ROM ]
Your installation CD-ROM couldn't be mounted. This probably means that the CD-ROM was not in the drive. If so you can insert it an try again.
I managed to identify some cases where this error occurs:
- on the ML110 and ML310: when the hard drive is empty
- on the ML350 Gen9: even if the hard drive is partitioned.
I think it comes from the
debian-installer that, at an early stage of the installation, tries to mount a partition from the first drive on
/media. And then mounts the USB drive in
In the above cases, the hard drive is detected later during the installation process, making the USB drive the first drive and therefore mounting it on
/media and not on
For the persons for which a manual intervention is not a problem, I found a workaround that I will describe in an answer below. But for an unattended installation, this is not a solution.
Can we force the installer to mount the USB drive on a specific mont-point?