Install Ubuntu from USB stick, but an got error message "...couldn't mount the CD-ROM..."

How to mount Ubuntu ISO to /cdrom while installing ubuntu.

  1. You must copy installation iso to your usb stick.
  2. press ALT+F2
  3. mkdir /media/usb
  4. mount -t vfat /dev/sdb /media/usb
  5. mount -t iso9660 -o loop /media/usb/ubuntu-12.04.3-server-amd64.iso /cdrom
  6. press ALT+F1 back to installation, select "Load debconf prexonfiguration file" and retry mount cdrom



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