[Bug 1552539] Re: Ubiquity Erase Disk and Install Fails to create Swap Space

[Martin Pitt]

Another observation from the strace: when mkswap runs, /dev/sda3 is
already enabled again:

21626 open("/proc/swaps", O_RDONLY|O_CLOEXEC) = 4
21626 read(4, "Filename\t\t\t\tType\t\tSize\tUsed\tPriority\n/dev/sda3                               partition\t8251388\t0\t-1\n", 1024)
 = 100
[...]
21626 open("/dev/sda3", O_RDONLY|O_EXCL|O_CLOEXEC) = -1 EBUSY (Device or resource busy)

There is a "dd if=/dev/sda3 of=991754715136-1000204140543/old_uuid"
running which has the device open (pid 21620), but it finishes well
before mkswap starts. I don't see anything else accessing /dev/sda3 in
the straces in between, so something from outside interferes here
(triggered by udev or similar).

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https://bugs.launchpad.net/bugs/1552539

Title:
  Ubiquity Erase Disk and Install Fails to create Swap Space

Status in Release Notes for Ubuntu:
  Fix Released
Status in casper package in Ubuntu:
  Fix Released
Status in ubiquity package in Ubuntu:
  Confirmed

Bug description:
  Daily Build of Gnome 16.04 using installation option to Erase Disk and Install fails with following message:
  "The creation of swap space in Partition #5 of SCSi3(0,0,0) (sda) failed.

  This is a Virtualbox based install using virtual disks that had a prior installation of a daily build.
  The installation process does not fail when I delete and recreate the Virtual Machine.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity 2.21.47
  ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3
  Uname: Linux 4.4.0-9-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.367
  Date: Thu Mar  3 04:26:59 2016
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InstallCmdLine: file=/cdrom/preseed/ubuntu-gnome.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
  InterpreterPath: /usr/bin/python3.5
  LiveMediaBuild: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160302)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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