installer (ubuntu 15.04) crashes while upgrading from 14.04 with raid0 array

[David]

- I've installed 14.04 with a "net install".
- Have a raid0 config not detected by installer of 15.04 (liveusb).
- Installed mdadm and run with --assemble --scan
- /dev/md0 correctly detected --> tried to upgrade distro and then ... bad luck :o( got error #2

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: ubiquity 2.21.25
ProcVersionSignature: Ubuntu 3.19.0-15.15-generic 3.19.3
Uname: Linux 3.19.0-15-generic x86_64
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CasperVersion: 1.360
Date: Sun Jul 19 12:26:25 2015
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your log files attached to this bug report it seems that there is a problem with your installation media (CD/DVD). You can verify the integrity of the Ubuntu ISO files you downloaded by following the instructions at https://help.ubuntu.com/community/HowToMD5SUM. You might also retry your installation with new media. In the event that is is not in fact an error with your installation media please set the bug's status back to New. Thanks and good luck!

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[David (davidprevot)]

Hi,

Thanks for your answer.
I can confirm what you suggest ;o)

I've used a "bad" USB key (it also provide a virtual CD drive ... sometimes well detected, sometimes not) and I completely forgotten that --> boot order jammed ... and me too.

It's also my first UEFI PC, which propose "SSD boot", "UEFI SSD boot", and so one for 5 boot devices.

Thanks again for your reply,
Best regards,
David.