Public bug reported: I don't know what happend. But its seems USB is bad.
ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: ubiquity 2.18.8 ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4 Uname: Linux 3.13.0-32-generic i686 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: i386 CasperVersion: 1.340 Date: Wed Oct 29 13:50:45 2014 InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity LiveMediaBuild: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140722.2) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: ubiquity UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: ubiquity (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 trusty ubiquity-2.18.8 ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1386995 Title: Pendrive bootable ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1386995/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs