Just an addendum. The above works for cd (which always forced read only). To also work for usb I had to add the "-oro" to the command:
# -- Hack starts! block installer mounting /dev/sda1 on /media # We do this...by mounting the install media (/dev/sd0 or /dev/sd?) onto /media first! # so when the installer tries it's bad mount it silently fails INSTALL_MEDIA=$(mount | grep /cdrom | grep -E -o '/dev/[^ ]*') mount -oro "$INSTALL_MEDIA" /media # -- Hack ends -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1347726 Title: ubuntu14.04 installation hang on "The installer has detected that the following disks have mounted partitions" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1347726/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
