system76-firmware requires /tmp to be mounted with exec

[Simon Déziel]

Trying to run system76-firmware while /tmp is mounted with noexec silently fails and does nothing.

Workaround to apply a new firmware:

  sudo mount -o remount,exec /tmp
  sudo system76-firmware

Information of the affected machine:

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.4 LTS"
$ dpkg -l| grep system76
ii system76-driver 16.04.55+1527714667+16.04~3d614f3 all Universal driver for System76 computers
ii system76-wallpapers 16.04.1 all System76 Wallpapers
$ grep -F /tmp /etc/fstab
tmpfs /tmp tmpfs noatime,nosuid,nodev,noexec,mode=1777,size=6144M 0 0

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: system76-driver 16.04.55+1527714667+16.04~3d614f3 [origin: LP-PPA-system76-dev-stable]
ProcVersionSignature: Ubuntu 4.4.0-130.156-generic 4.4.134
Uname: Linux 4.4.0-130-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CrashDB: {'impl': 'launchpad', 'project': 'system76-driver'}
CurrentDesktop: Unity
Date: Wed Jun 20 13:00:51 2018
InstallationDate: Installed on 2016-12-06 (560 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Beta amd64 (20161206)
PackageArchitecture: all
SourcePackage: system76-driver
UpgradeStatus: No upgrade log present (probably fresh install)