CD images aren't able to boot off USB sticks in uEFI mode
Bug #677260 reported by
Mario Limonciello
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Ubuntu CD Images |
Fix Released
|
Undecided
|
Colin Watson | ||
usb-creator (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Current daily natty images properly offer a uEFI option in the boot menu when burned to CD. When burned to a USB stick however, there is no boot target option offered.
This appears to be because the stick doesn't have a efi/boot/
Copying this file from boot/grub/efi.img to efi/boot/
I see two ways to solve this:
A) Keep efi/boot/
B) Teach USB-Creator to loop mount boot/grub/efi.img if found and extract efi.img as well.
Changed in ubuntu-cdimage: | |
assignee: | nobody → Colin Watson (cjwatson) |
Changed in usb-creator (Ubuntu): | |
status: | New → Fix Committed |
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Additionally, it seems the the bootx64.efi that's contained in efi.img isn't sufficient to allow booting a USB device. It appears that it doesn't have support for reading msdos partition tables.