[Bug 455167] Re: Ubiquity should put install image onto target disk for apt's use

[Phillip Susi]

We no longer have a dvd image, so this is no longer relevant.  Also you
always could install packages from the cd; you just had to have it in
the drive when you went to install.


** Changed in: ubiquity (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/455167

Title:
  Ubiquity should put install image onto target disk for apt's use

Status in “ubiquity” package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: ubiquity

  [Feature Request.  Noticed this while installing Karmic alphas and
  betas and dailies.]

  Disk drives are huge these days.  Distro media are very small by
  comparison.  There should be a really simple way to put a full copy of
  the install media onto the disk drive of the just-installed system.
  And apt should be configured to use it for subsequent package
  installs.  This would burn maybe 1-2% of the disk drive, but would
  provide a complete set of validated and checksummed packages that can
  be used on the system (without any network access) to upgrade or
  repair a damaged machine -- or to install a second machine.

  There's no reason to go out to the net to download packages that are
  unchanged since the distro ISO image was cut -- but that's what
  Ubuntu's apt-get and Package Manager does today.  Instead, put the ISO
  image into the system at e.g. /usr/share/linux-
  images/ubuntu-9.04-dvd-i386.iso, and set up apt and/or fstab so that
  this distro image is accessible for installing later packages.

  I regularly copy the ISO image onto the target system manually, but
  apt makes it hard to use such an image for package installs.  (apt-
  cdrom really assumes you need/have a CDROM drive; it should be
  possible to just point it at one or several ISO images and be done!)

  If you want to get really fun, then support doing Live CD's and installs from an ISO image over the network (using a simple boot USB key) -- and copy the image onto the target system.  Most people download an ISO image, then have to burn it to a throwaway CD/DVD, then physically move that disc to the target system, etc.  How much better to just download the image,
  use a standard boot-my-image-over-the-net boot disc or USB key, and do the LiveCD or install over the Ethernet from the machine you just downloaded the ISO image to?

  Another possible simplification would be to fix the USB images so that
  they contain the full ISO image (as a file), plus a small amount of
  boot code outside of it.  Currently, you can't check a bootable USB
  install -- it has no checksum that works.  If your USB key is flakey,
  you get odd errors that you can't reproduce after remaking the USB key
  and trying again.

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