Public bug reported:
I want to run 16.04 on a new ASUS T300 Chi transformer notebook, which
is pre-installed with windows 10.
I started by making a DVD iso from the beta distribution, then booted
and installed it on a spare partition of my old Dell 1558 Studio laptop.
The system runs fine in 64-bit mode, but the BIOS is non-EFI. I then
applied the latest updates to the Dell HDD 16.04 system before running
usb-creator. I've done this several times, always starting by DD-ing
zeros over the first 200MB of the target 8mb usb stick.
The creator reports successful completion, but gparted doesn't like the
contents of the usb stick after the image has been created. The
partition table has been changed from type=msdos to type=mac, and the
sector size from 512 to 2048. The capacity changed from 7.7GB to 57GB!
There are two partitions: sdb1 is called "Ubuntu Gnome 16.04 LTS, with
an "unknown" file system type and a size of ONLY 4KB; 1.22GB
unallocated; sdb2 is fat16 and its 2.31 MB extent is almost full. No
flags are set on either partition. Whenever I interact with gparted it
throws a pop-up that says "The driver descriptor says the physical
blocksize is 2048, but linux says it is 512 - cancel or ignore".
I am amazed to report this image boots successfully on my Dell with its
"legacy" BIOS. The ubuntu live/install options page displays and it
eventually boots the live system, which superficially seems to run OK.
The ASUS uses American Megatrends UEFI BIOS, which I have updated to the
latest version 207. I have enabled the CSM (Compatibility Support Module
- legacy BIOS) and disabled both fast start and secure boot. It boots
the usb stick in non-EFI mode as desired (proved by not getting the
grub2 efi menu). The "man=keyboard" splash panel appears, then it drops
to a tty login briefly before the new ubuntu "circling logo" appears.
After several minutes, it drops back to a tty screen with the following:
(initramfs) Unable to find a medium containing a live system.
I also have a usb stick with knoppix 7.0 which successfully boots in
64-bit non-efi mode on both the Dell and the Asus, so I am reluctant to
blame the Asus legacy bios at this stage. Why is gparted reporting such
a strange format after creating the usb image?
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: usb-creator-gtk 0.3.2
ProcVersionSignature: Ubuntu 4.4.0-13.29-generic 4.4.5
Uname: Linux 4.4.0-13-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Mar 16 16:11:25 2016
InstallationDate: Installed on 2016-03-14 (2 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Alpha amd64
(20160225.1)
SourcePackage: usb-creator
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: usb-creator (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1557894
Title:
Strange usb device format and failure to boot on UEFI system
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