crashes when installing

[haavard]

tried 2 times to install ubuntu but i get this error

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubiquity 2.21.63.2
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Casper:
 stdin: Not a typewriter
 Generating locales (this might take a while)...
 Generation complete.
 pwconv: failed to change the mode of /etc/passwd- to 0600
Date: Sat Aug 27 14:13:23 2016
InstallCmdLine: file=/cdrom/multiboot/ubuntu-16.04.1-desktop-amd64/preseed/ubuntu.seed boot=casper cdrom-detect/try-usb=true noprompt floppy.allowed_drive_mask=0 ignore_uuid live-media-path=/multiboot/ubuntu-16.04.1-desktop-amd64/casper/ initrd=/multiboot/ubuntu-16.04.1-desktop-amd64/casper/initrd.lz quiet splash --- maybe-ubiquity
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Mathieu Trudel-Lapierre (cyphermox)]

It looks to me like one of your hard drives may be failing; please run a self-test and verify that the hardware is free of errors. You can do this by following https://help.ubuntu.com/16.04/ubuntu-help/disk-check.html; you can open "Disks" by hitting the Windows key on your computer and typing 'disks' from a live session.

If errors are reported, you may need to replace the hard drive to be able to continue installing Ubuntu without crashes. If no errors and reported, please report here and we can look more in depth into this issue.

Since this appears to be hardware error, it doesn't warrant a "Critical" importance; we'll redefine importance as needed when we know more.

[Launchpad Janitor (janitor)]

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]