[Bug 1245147] Re: Ubuntu 13.10 does not boot from USB stick 3.0

[Luigi R.]

Please find attached the result. The usb driver is sdb and for a test
today I tried ti install fedora but it did not solve the problem. On
another machine, bios efi  with bios legacy enabled I have been able to
boot from the usb 3.0. So I'm suspecting a bios limitation of my
notebook HP DV6  6030el.

But I'm sure that at the beginning I was able to boot the live from the
same usb stick. I have also tried to delete the mbr manually then
excuting install-mbr to create a new mbr.

** Attachment added: "RESULTS.txt"
   https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1245147/+attachment/3899250/+files/RESULTS.txt

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Title:
  Ubuntu 13.10 does not boot from USB stick 3.0

Status in “grub2” package in Ubuntu:
  Incomplete

Bug description:
  I have tried to perform a normal installation of ubuntu 13.10 on a
  usb3.0 stick sandisk 16Gb, formatted ext4.

  I do not how to provide you more information since grub does not even
  start and a violet screen hangs. I was suspecting a corruption of the
  usb mbr and I have tried updating directly the grub the I have on the
  hard disk used by ubuntu 13.04 and windows 7 with the key plugged in
  but again just violet screen and everything hangs.

  If I create a live usb in fat32 I do not have any problem. Could you
  please verify if there is a bug in ext4?

  Before on the same usb I had Ubuntu 13.04 but in UEFI mode since I was
  using a netbook UEFI. Now for sure I have a bios legacy and for this
  reason I have removed everything to reinstall ubuntu 13.10 in the mbr.

  The usb key has been formatted in gparted recreating again the
  partition table in msdos as follow:

  Le voci nella tabella delle partizioni non sono nello stesso ordine
  del disco.

  Disk /dev/sdb: 15.5 GB, 15504900096 bytes
  64 testine, 32 settori/tracce, 14786 cilindri, totale 30283008 settori
  Unità = settori di 1 * 512 = 512 byte
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Identificativo disco: 0x00018829

  Dispositivo Boot      Start         End      Blocks   Id  System
  /dev/sdb1   *        2048    13632907     6815430   83  Linux
  /dev/sdb2        13635582    30281727     8323073    5  Esteso
  /dev/sdb5        13635584    14684159      524288   82  Linux swap / Solaris
  /dev/sdb6        14686208    30281727     7797760    7  HPFS/NTFS/exFAT

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