[Bug 1386153] Re: Inconsistent behaviour between 2 ways of launching Ubiquity

[Dariusz Gadomski]

Mathieu: I forgot to mention it in the descripiton. To observe this
problem you first need to apply Colin's patch for bug #1386113
(https://launchpadlibrarian.net/188412508/fix-keyfile-error.patch).

Thanks for looking at this!

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Title:
  Inconsistent behaviour between 2 ways of launching Ubiquity

Status in ubiquity package in Ubuntu:
  Incomplete

Bug description:
  I need to perform a partially automated installation of a desktop
  Ubuntu trusty. The partitioning part should be fully automated
  creating a entire-disk encrypted lvm.

  While debugging my preseeding script I have encountered an inconsisted
  behaviour of ubiquity.

  In both cases I use the same image of desktop CD with a preseed file
  added to the CD.

  Scenario 1:
  1. Launch desktop live CD
  2. Select "Try Ubuntu"
  3. Load my preseed file with:
  # debconf-set-selections /cdrom/preseed/ubuntu2.seed
  4. Start ubiquity:
  # ubiquity -d --automatic
  5. Select language
  6. Continue after the internet connection check and drive space check.

  With Secnario 1 everything works fine - the partitioning is fully
  automated.

  Scenario 2:
  1. Boot a customized entry in isolinux/txt.cfg passing the preseed file in the kernel command line
  label live-install-test
    menu label ^Install Ubuntu (test)
    kernel /casper/vmlinuz.efi
    append debug-ubiquity file=/cdrom/preseed/ubuntu2.seed boot=casper only-ubiquity initrd=/casper/initrd.lz quiet splash
  2. Select language
  3. Continue after the internet connection check and drive space check.

  With Scenario 2 I'm getting an error dialog:
  "No modifications can be made to the device Encrypted volume (sda5_crypt) for the following reasons: In use by LVM volume group ubuntu-vg."

  Please find the provided preseed files and the logs from the failing
  case.

  Note: this contains a patch included in #1386113 to get pass the
  keyfile generation error.

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