Ubuntu flavours <=12.04.1 may cause trouble regarding making a 16bit; or wanting to use a 16bit ESP whereas firmwares are looking for 32bit ESP= no worky!? The workaround is to allow installer to run as it wants to but be sure to copy ESP save in another location then delete 16bit ESP and remake 32bit ESP replacing the files from 16bit ESP before rebooting trying to use U/EFI. source http://www.rodsbooks.com/gb-hybrid-efi/ "A FAT-16 ESP, on the other hand, seems problematic. Ubuntu 11.04 (and 11.10) in EFI mode creates a dinky FAT-16 ESP, and after my test install of Ubuntu 11.04, the board hung on reboot until I reworked the ESP as FAT-32. Thus, if you plan to install Ubuntu, or any other OS that creates a FAT-16 ESP, be prepared to fix it, preferably before the system reboots!" "rodsbooks" is an absolutely indispensible source of all things factual regarding U/EFI which demystifies and disproves many myths as well as misinformation regarding this subject.
Again these type of idiosyncrasies appear to be vendor specific. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1053897 Title: kernel does not boot without noefi on commandline Status in “linux” package in Ubuntu: Incomplete Status in “linux” source package in Quantal: Incomplete Bug description: The machine is an ASUS Laptop N53SN. In BIOS mode, everything works ok, but in UEFI, the kernel does not boot. The only way to boot it is to provide the noefi option on the cmdline. This machine never booted with any ubuntu distribution in efi. Direct boot with linux-efi kernel image, show the same behaviour. The only distribution that boots in UEFI is the alpha version of Fedora 18. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-14-generic 3.5.0-14.15 ProcVersionSignature: Ubuntu 3.5.0-14.15-generic 3.5.3 Uname: Linux 3.5.0-14-generic x86_64 AcpiTables: Error: command ['pkexec', '/usr/share/apport/dump_acpi_tables.py'] failed with exit code 127: Error executing /usr/share/apport/dump_acpi_tables.py: Permission denied ApportVersion: 2.5.1-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: seb 1743 F.... pulseaudio /dev/snd/controlC0: seb 1743 F.... pulseaudio Date: Fri Sep 21 11:04:04 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-14-generic root=UUID=2755aeb4-461b-4bdf-b217-63cb230defa9 ro noefi quiet splash RelatedPackageVersions: linux-restricted-modules-3.5.0-14-generic N/A linux-backports-modules-3.5.0-14-generic N/A linux-firmware 1.91 SourcePackage: linux UpgradeStatus: Upgraded to quantal on 2012-09-07 (13 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1053897/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
