Re: uefi boot on Apple Mac

From: Nathan Whitehorn <nwhitehorn_at_freebsd.org>
Date: Sat, 12 Jul 2014 10:22:24 -0700
I'd point out that, as of last week, the standard -CURRENT ISOs (and 
generate-release.sh script) make EFI-bootable media by default. All the 
snapshots should have this done already, for instance.
-Nathan

On 07/12/14 03:09, Anders Bolt-Evensen wrote:
> I also got a message like that when I booted from a USB stick on a 
> MacBookPro8,3 (17 inch, late 2011).
>
> I fixed it by creating a custom ISO image and burned that onto a DVD 
> using an external DVD drive.
> The UEFI installer boots fine from this external DVD drive.
>
> Here is how I did it:
>
> Genereste an ISO with the FreeBSD-CURRENT kernel, mount the ISO and 
> copy all files from the root directory in the ISO and unmount
>     > cd /usr/src/release
>     > sh ./generate-release.sh # You may have to run “make buildworld” 
> and be connected to the internet to install required ports.
>     > mount -t cd9660 /scratch/R/release/FreeBSD-something-disc1.iso /mnt
>     > mkdir freebsd_generic_installer
>     #Files copied to the directory in the next command will be copied 
> to a new ISO in step 3
>     > cp -R /mnt/ freebsd_generic_installer/
>     > umount /mnt
> 2. Create a FAT filesystem image and place the loader in it in the 
> default path that UEFI will look for (the following steps are copied 
> from https://wiki.freebsd.org/UEFI#CD.2FDVD_Boot_under_UEFI):
>     > dd if=/dev/zero of=efiboot.img bs=4k count=100
>     > mdconfig -a -t vnode -f efiboot.img
>     > newfs_msdos -F 12 -m 0xf8 /dev/md0
>     > mount -t msdosfs /dev/md0 /mnt
>     > mkdir -p /mnt/efi/boot
>     > cp loader.efi /mnt/efi/boot/bootx64.efi
>     > umount /mnt
>     > mdconfig -d -u 0
>
> 3. Create the custom ISO image. Please make sure that the entry in 
> freebsd_generic_installer/etc/fstab matches the label you choose in 
> the command below.
>     > makefs -t cd9660 -o bootimage='i386;efiboot.img' -o no-emul-boot 
> -o rockridge -o label=“FREEBSD_UEFI_INSTALL" -o publisher="test" 
> uefi-test.iso freebsd_generic_installer/
>
> To get the example in the command above to work, please make sure that 
> the entry in freebsd_generic_installer/etc/fstab reads
> "/dev/iso9660/FREEBSD_UEFI_INSTALL    /    cd9660    ro    0 0"
>
> 4. Burn the image to DVD, reboot your system and choose “EFI Boot”. 
> Note that unless you are using a EFI console like rEFIt or rEFInd, you 
> may have to kind of wait a couple of minutes while the kernel is 
> loading before anything appears on the screen.
>
>
> On 04/07/14 16:34, Huang Wen Hui wrote:
>> Hi,
>> On my MacbookPro11,3, I got this error message:
>>
>> http://sw.gddsn.org.cn/freebsd/uefi.jpg
>>
>> cheers,
>>
>> Huang WenHui
>>
>> 2014-07-04 22:13 GMT+08:00 Ed Maste <emaste_at_freebsd.org>:
>>
>>> On 24 May 2014 19:39, Rafael Espíndola <rafael.espindola_at_gmail.com> 
>>> wrote:
>>>> Yes, I got that in the mac laptops I tried, it worked on a Mac Pro. It
>>>> might be the frame buffer corruption that Ed Maste was mentioning.
>>> I purchased a new MacBook Air yesterday (model identifier
>>> MacBookAir6,2).  UEFI boot and vt(4) worked correctly.  (My image
>>> included Rafael's patch; I haven't tried a boot without.)
>>>
>>> I also committed a change to display the framebuffer parameters
>>> (address, dimensions, etc.) on boot, in order to help identify the
>>> source of this issue.  If you have a moment can you build a new USB
>>> stick image and give it a try?
>>>
>>> -Ed
>>>
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Received on Sat Jul 12 2014 - 15:22:32 UTC

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