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

[Luigi R.]

I did it, but nothing...the light of the key flashes two time and stops
and nothing appears on the screen. I have also tried update grub on my
hd to include the item linked to the usb and as soos as I click on it I
can see only a magenta screen. Is there a way to debug what is
happening. In which filesystem grub is written on the key (ext2?)

menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-39bf5da7-c366-4b39-8ead-4b877100e798' {
recordfail
	load_video
	gfxmode $linux_gfx_mode
	insmod gzio
	insmod part_msdos
	insmod ext2
	set root='hd1,msdos1'
	if [ x$feature_platform_search_hint = xy ]; then
	  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1  39bf5da7-c366-4b39-8ead-4b877100e798
	else
	  search --no-floppy --fs-uuid --set=root 39bf5da7-c366-4b39-8ead-4b877100e798
	fi
	linux	/boot/vmlinuz-3.11.0-12-generic root=UUID=39bf5da7-c366-4b39-8ead-4b877100e798 ro   quiet splash $vt_handoff
	initrd	/boot/initrd.img-3.11.0-12-generic
}

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https://bugs.launchpad.net/bugs/1245147

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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