[Bug 1298719] [NEW] Cant install booting ISO from GRUB

[Enzzo Pessanha Cavallo]

Public bug reported:

I`m on ubuntu live booted from grub with something like this

menuentry "ubuntu-13.04-desktop-amd64.iso" {
  set isofile="/archives/ubuntu-13.04-desktop-amd64.iso"
  loopback loop (hd0,4)/$isofile
  linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile quiet noeject noprompt splash --
  initrd (loop)/casper/initrd.lz
}

My system have /dev/sda1 with arch linux, /dev/sda2 with swap, /dev/sda3 with "testing linux", /dev/sda4 with data(iso is here).
I just set /dev/sda3 as "/" and mark for format.
So, ubuntu asks me for umount /isodevice, I cant continue without umount it. And Ubuntu CANT unmount it (its also unecessary) and I cant continue the installation.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubiquity 2.17.10
ProcVersionSignature: Ubuntu 3.13.0-19.40-generic 3.13.6
Uname: Linux 3.13.0-19-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CasperVersion: 1.339
CurrentDesktop: Unity
Date: Fri Mar 28 01:27:36 2014
InstallCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=/souenzzo/ISO/trusty-desktop-amd64.iso quiet noeject noprompt splash --
LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty ubiquity-2.17.10

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https://bugs.launchpad.net/bugs/1298719

Title:
  Cant install booting ISO from GRUB

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  I`m on ubuntu live booted from grub with something like this

  menuentry "ubuntu-13.04-desktop-amd64.iso" {
    set isofile="/archives/ubuntu-13.04-desktop-amd64.iso"
    loopback loop (hd0,4)/$isofile
    linux (loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile quiet noeject noprompt splash --
    initrd (loop)/casper/initrd.lz
  }

  My system have /dev/sda1 with arch linux, /dev/sda2 with swap, /dev/sda3 with "testing linux", /dev/sda4 with data(iso is here).
  I just set /dev/sda3 as "/" and mark for format.
  So, ubuntu asks me for umount /isodevice, I cant continue without umount it. And Ubuntu CANT unmount it (its also unecessary) and I cant continue the installation.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubiquity 2.17.10
  ProcVersionSignature: Ubuntu 3.13.0-19.40-generic 3.13.6
  Uname: Linux 3.13.0-19-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.339
  CurrentDesktop: Unity
  Date: Fri Mar 28 01:27:36 2014
  InstallCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=/souenzzo/ISO/trusty-desktop-amd64.iso quiet noeject noprompt splash --
  LiveMediaBuild: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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