[Bug 1402363] [NEW] Failed to install on qemu-system-x86_64, USB mounted system disk

Public bug reported: Trying to install Ubuntu 64 bit 14.04 on a badly messed up laptop by putting its HDD into a USB caddy and then running qemu (with KVM enabled) on the ISO: qemu-system-x86_64 -boot -order=dc -enable-kvm -hda /dev/sde -m 1024 -cdrom ubuntu-14.04.1-desktop-amd64.iso -cpu host s

[Bug 1402363] Re: Failed to install on qemu-system-x86_64, USB mounted system disk

Some kind of file permission problem. Dec 14 10:38:54 ubuntu ubiquity: sed: Dec 14 10:38:54 ubuntu ubiquity: couldn't open temporary file /target/etc/apt/sedqLq5jd: Read-only file system Dec 14 10:38:54 ubuntu ubiquity: I've got the right permissions in the host OS to access the disk (group f