[Bug 1822026] [NEW] Live USB freezes or cannot complete install when nouveau driver is loaded

[Pierre Equoy]

Public bug reported:

When I boot the Disco 19.04 beta live USB, I can see a lot of errors
related to nouveau in dmesg.

Because of this, `lspci` freezes, so reporting an issue is impossible
either with ubuntu-bug or sosreport (in both cases, the log gathering
stops when trying to get the output from lspci).

To avoid this issue, I need to launch the live USB with the following
command line:

$ cat /proc/cmdline 
BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash modprobe.blacklist=nouveau ---

(that is, add `modprobe.blacklist=nouveau` to the command line in Grub)

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: ubiquity 19.04.7
ProcVersionSignature: Ubuntu 5.0.0-7.8-generic 5.0.0
Uname: Linux 5.0.0-7-generic x86_64
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
CasperVersion: 1.402
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 28 03:23:52 2019
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash modprobe.blacklist=nouveau ---
LiveMediaBuild: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.2)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.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 disco ubuntu

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https://bugs.launchpad.net/bugs/1822026

Title:
  Live USB freezes or cannot complete install when nouveau driver is
  loaded

Status in ubiquity package in Ubuntu:
  New

Bug description:
  When I boot the Disco 19.04 beta live USB, I can see a lot of errors
  related to nouveau in dmesg.

  Because of this, `lspci` freezes, so reporting an issue is impossible
  either with ubuntu-bug or sosreport (in both cases, the log gathering
  stops when trying to get the output from lspci).

  To avoid this issue, I need to launch the live USB with the following
  command line:

  $ cat /proc/cmdline 
  BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash modprobe.blacklist=nouveau ---

  (that is, add `modprobe.blacklist=nouveau` to the command line in
  Grub)

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: ubiquity 19.04.7
  ProcVersionSignature: Ubuntu 5.0.0-7.8-generic 5.0.0
  Uname: Linux 5.0.0-7-generic x86_64
  ApportVersion: 2.20.10-0ubuntu23
  Architecture: amd64
  CasperVersion: 1.402
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Mar 28 03:23:52 2019
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash modprobe.blacklist=nouveau ---
  LiveMediaBuild: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.2)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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