[syslinux] isohybrid: slint64-14.1.iso: unable to find mac efi image

[Didier Spaier]

Hi,

On 29/07/2014 23:19, Thomas Schmitt wrote:
 > A good opportunity to brag with xorriso's boot inspection
 > features (since xorriso-1.3.8):
Yes! I've upgraded libburn, libisofs and libisoburn so now I can play
with it too ;)

 > I forgot to advise (or misadvise) -isohybrid-apm-hfsplus with
 > the image /isolinux/efiboot.img . So we only got one APM
 > partition here. A slight deviation from mjg59's layout.
 >
 > It is a lie to give efiboot.img the partition type Apple_HFS.
 > isohybrid.c does it that way. So the perfect mimic would be
 >     -e isolinux/efiboot.img  \
 >     -isohybrid-gpt-basdat -isohybrid-apm-hfsplus \
 > instead of
 >     -e isolinux/efiboot.img  \
 >     -isohybrid-gpt-basdat \

I tried that and got this, which is what was expected I think:

xorriso 1.3.8 : RockRidge filesystem manipulator, libburnia project.
xorriso : NOTE : Loading ISO image tree from LBA 0
xorriso : UPDATE : 34 nodes read in 1 seconds
xorriso : NOTE : Detected El-Torito boot information which currently is 
set to be discarded
Drive current: -indev '/tmp/slint64-14.1.iso'
Media current: stdio file, overwriteable
Media status : is written , is appendable
Boot record  : El Torito , MBR isohybrid cyl-align-on GPT APM
Media summary: 1 session, 38912 data blocks, 76.0m data, 6379m free
Volume id    : 'SlintISO'
El Torito catalog  : 42  1
El Torito cat path : /isolinux/isolinux.boot
El Torito images   :   N  Pltf  B   Emul  Ld_seg  Hdpt Ldsiz         LBA
El Torito boot img :   1  BIOS  y   none  0x0000  0x00 4          43
El Torito boot img :   2  UEFI  y   none  0x0000  0x00 2880          55
El Torito boot img :   3  UEFI  y   none  0x0000  0x00 5472         775
El Torito img path :   1  /isolinux/isolinux.bin
El Torito img opts :   1  boot-info-table isohybrid-suitable
El Torito img path :   2  /isolinux/efiboot.img
El Torito img path :   3  /isolinux/macboot.img
System area options: 0x00000102
System area summary: MBR isohybrid cyl-align-on GPT APM
ISO image size/512 : 155648
Partition offset   : 0
MBR heads per cyl  : 64
MBR secs per head  : 32
MBR partition table:   N Status  Type        Start       Blocks
MBR partition      :   1   0x80  0x00            0       155648
MBR partition      :   2   0x00  0xef          220         2880
MBR partition      :   3   0x00  0x00         3100         5472
MBR partition path :   2  /isolinux/efiboot.img
MBR partition path :   3  /isolinux/macboot.img
GPT                :   N  Info
GPT disk GUID      :      dd6fcff38adacf46b128287f6f7a9136
GPT entry array    :      16  192  overlapping
GPT lba range      :      64  155598  155647
GPT partition name :   1  490053004f00480079006200720069006400
GPT partname local :   1  ISOHybrid
GPT partition GUID :   1  dd6fcff38adacf46b12b287f6f7a9136
GPT type GUID      :   1  a2a0d0ebe5b9334487c068b6b72699c7
GPT partition flags:   1  0x1000000000000001
GPT start and size :   1  0  155596
GPT partition name :   2  490053004f004800790062007200690064003100
GPT partname local :   2  ISOHybrid1
GPT partition GUID :   2  dd6fcff38adacf46b12a287f6f7a9136
GPT type GUID      :   2  a2a0d0ebe5b9334487c068b6b72699c7
GPT partition flags:   2  0x1000000000000001
GPT start and size :   2  220  2880
GPT partition path :   2  /isolinux/efiboot.img
GPT partition name :   3  490053004f004800790062007200690064003200
GPT partname local :   3  ISOHybrid2
GPT partition GUID :   3  dd6fcff38adacf46b129287f6f7a9136
GPT type GUID      :   3  005346480000aa11aa1100306543ecac
GPT partition flags:   3  0x1000000000000001
GPT start and size :   3  3100  5472
GPT partition path :   3  /isolinux/macboot.img
APM                :   N  Info
APM block size     :      2048
APM gap fillers    :      0
APM partition name :   1  EFI
APM partition type :   1  Apple_HFS
APM start and size :   1  55  720
APM partition path :   1  /isolinux/efiboot.img
APM partition name :   2  EFI
APM partition type :   2  Apple_HFS
APM start and size :   2  775  1368
APM partition path :   2  /isolinux/macboot.img

But then for my "real" tries I wen back to using used xorriso
following your good advice.

 > -------------------------------------------------------------------
 > Your are back on the track blazed by Fedora Live.

Alas, I tried to boot off an USB key on a recent MacBook but that failed.
I saw two boot media on Apple's Boot Manager, both called EFI Boot (??)

Clicking on each I could see grub's  menu and navigate in it but after
choosing and entry I just saw a line with:

   Loading huge.s kernel and installer inkitrd. Please wait...


In a vmplayer VM I see this message too but it disappears after a few
seconds and the machine boots -- but not that Mac.

I changed the name of the blessed EFI file in CoreServices to boot.efi as
it seems that shouls be but no luck.

I realize that I'm slipping off topic, but would be grateful for any clue,
including an advice on  who outside of this list's members can help me
further.

Have a good day,

Didier

PS I have updated the content of http://slint.fr/misc/MacBoot that now
reflects my last try.