[Bug 658865] Re: Install from USB fails: "An attempt to configure apt to install additional packages from the CD failed"

[bsd]

Removing the apt-setup/generators/40cdrom file requires that one have
net connectivity to complete the installation.

What's the point of having a cdrom, or usb stick with a complete distro
except to either avoid the overhead of (repeated) download(s) (multiple
installs) or a slow net connection to begin with (some of my friends
still use dialup).

My problem is potentially compounded by the fact that I'm installing
UEFI.

I don't like either of these workarounds, there must be something
better.

What's the purpose of the cdrom-detect/try-usb=true  boot arg?
Isn't that supposed to offer a clue that /cdrom is really a USB?
TIA

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https://bugs.launchpad.net/bugs/658865

Title:
  Install from USB fails: "An attempt to configure apt to install
  additional packages from the CD failed"

Status in Estobuntu — oma eesti opsüsteem:
  New
Status in “ubiquity” package in Ubuntu:
  Triaged
Status in Baltix GNU/Linux:
  New

Bug description:
  Please note that removing /usr/lib/ubiquity/apt-
  setup/generators/40cdrom from your system may cause the installer to
  crash at a later stage.

  Original report follows:

  Binary package hint: ubiquity

  Description of problem:
  When trying to install Ubuntu 10.10 from USB, ubiquity crashes with this message: "An attempt to configure apt to install additional packages from the CD failed."

  Root of problem:
  The problem is that the file structure on the usb differs to what is on a livecd and apt-setup is unaware of this.

  WORKAROUND:

  There appear to be two alternatives:

  a) Remove the script that causes the error, when installing from a Live setup ("Try Ubuntu"):
     sudo rm /usr/lib/ubiquity/apt-setup/generators/40cdrom

  b) Create the files as they are expected:

     To resolve this, simply copy the contents of filesystem.squashfs on
  the iso into the usb stick. Luckily the parts it is reading from this
  appear to be just apt config files so the fact that you lose symbolic
  links or permissions on a FAT32 usb stick shouldn't matter.

     On your current Linux installation: (If you don't have one you could use a live cd off a different usb stick)
     1. Create USB stick.
     2. Type in a terminal:
     sudo mkdir iso
     sudo mkdir source
     sudo mount -o loop pathtoiso/ubuntu-10.10-desktop-amd64.iso iso
     sudo mount -t squashfs -o loop iso/casper/filesystem.squashfs source
     sudo cp -pLr source/* pathtomountedusbstick

     (Thanks Klaas Hartmann for the workaround :))

  Architecture: i386
  DistroRelease: Ubuntu 10.10
  LiveMediaBuild: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
  Package: ubiquity 2.4.8
  PackageArchitecture: i386
  ProcEnviron:
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
  Tags: maverick
  Uname: Linux 2.6.35-22-generic i686
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

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