Re: [off list] Re: Help Creating Linux ISO

[MarcellusMajor]

Thomas ,

I still cannot get the iso to work when uefi is selected.

The iso boots when uefi is not selected.

The rhel iso sucessfully boots when uefi is selected.

The only difference i see is that the rhel iso is not overlapping.

What can i do to fix the overlapping issue?

xorriso as mkisofs -volid "CSG 3.0.0.0 RHEL-7.6 x86_64" -o
csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso -isohybrid-mbr
--interval:local_fs:0s-15s:zero_mbrpt,zero_gpt:'./rhel-server-7.6-x86_64-dvd.iso'
-b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot
-boot-load-size 4 -boot-info-table -eltorito-alt-boot -e
images/efiboot.img -no-emul-boot "target/archive/dvd"

isohybrid --uefi csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso

fdisk -l result
Disk csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso: 5087 MB, 5087690752
bytes, 9936896 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x0f5ac280

                                       Device Boot      Start        
End      Blocks   Id  System
csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso1   *           0    
9936895     4968448    0  Empty
csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso2            1052      
18471        8710   ef  EFI (FAT-12/16/32)


xorriso -indev csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso
-report_system_area plain -report_el_torito plain
GNU xorriso 1.5.3 : RockRidge filesystem manipulator, libburnia project.

xorriso : NOTE : Loading ISO image tree from LBA 0
xorriso : UPDATE :    1448 nodes read in 1 seconds
xorriso : NOTE : Detected El-Torito boot information which currently is
set to be discarded
Drive current: -indev 'csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso'
Media current: stdio file, overwriteable
Media status : is written , is appendable
Boot record  : El Torito , MBR isohybrid cyl-align-off GPT
Media summary: 1 session, 2484027 data blocks, 4852m data,  394g free
Volume id    : 'CSG 3.0.0.0 RHEL-7.6 x86_64'
System area options: 0x00000202
System area summary: MBR isohybrid cyl-align-off GPT
ISO image size/512 : 9936108
Partition offset   : 0
MBR heads per cyl  : 0
MBR secs per head  : 0
MBR partition table:   N Status  Type        Start       Blocks
MBR partition      :   1   0x80  0x00            0      9936896
MBR partition      :   2   0x00  0xef         1052        17420
MBR partition path :   2  /images/efiboot.img
GPT                :   N  Info
GPT backup problems:      Implausible header LBA 9936894
GPT disk GUID      :      b72b624daf71704d885802a85e3efd72
GPT entry array    :      2  128  overlapping
GPT lba range      :      34  9936862  9936894
GPT partition name :   1 
49000000530000004f0000004800000079000000620000007200
GPT partname local :   1  I
GPT partition GUID :   1  120c7a0ef845514c83af88fb1822a476
GPT type GUID      :   1  a2a0d0ebe5b9334487c068b6b72699c7
GPT partition flags:   1  0x0000000000000000
GPT start and size :   1  0  1547501
GPT partition name :   2  49000000530000004f000000480000007900
GPT partname local :   2  I
GPT partition GUID :   2  d97c3ef78829164087b29d93e1e0cecc
GPT type GUID      :   2  a2a0d0ebe5b9334487c068b6b72699c7
GPT partition flags:   2  0x0000000000000000
GPT start and size :   2  1052  17420
GPT partition path :   2  /images/efiboot.img
El Torito catalog  : 262  1
El Torito cat path : /isolinux/boot.cat
El Torito images   :   N  Pltf  B   Emul  Ld_seg  Hdpt  Ldsiz         LBA
El Torito boot img :   1  BIOS  y   none  0x0000  0x00      4        4618
El Torito boot img :   2  UEFI  y   none  0x0000  0x00  17420         263
El Torito img path :   1  /isolinux/isolinux.bin
El Torito img opts :   1  boot-info-table isohybrid-suitable
El Torito img path :   2  /images/efiboot.img





xorriso -indev csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso
-report_system_area  as_mkisofs
GNU xorriso 1.5.3 : RockRidge filesystem manipulator, libburnia project.

xorriso : NOTE : Loading ISO image tree from LBA 0
xorriso : UPDATE :    1448 nodes read in 1 seconds
xorriso : NOTE : Detected El-Torito boot information which currently is
set to be discarded
Drive current: -indev 'csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso'
Media current: stdio file, overwriteable
Media status : is written , is appendable
Boot record  : El Torito , MBR isohybrid cyl-align-off GPT
Media summary: 1 session, 2484027 data blocks, 4852m data,  394g free
Volume id    : 'CSG 3.0.0.0 RHEL-7.6 x86_64'
-V 'CSG 3.0.0.0 RHEL-7.6 x86_64'
--modification-date='2020101219302400'
-isohybrid-mbr
--interval:local_fs:0s-15s:zero_mbrpt,zero_gpt:'csg-3.0.0.0_RC16.0.0.MMSBR-x86_64-HYBRID.iso'
-partition_cyl_align off
-partition_offset 0
--mbr-force-bootable
-iso_mbr_part_type 0x00
-c '/isolinux/boot.cat'
-b '/isolinux/isolinux.bin'
-no-emul-boot
-boot-load-size 4
-boot-info-table
-eltorito-alt-boot
-e '/images/efiboot.img'
-no-emul-boot
-boot-load-size 17420
-isohybrid-gpt-basdat



On 10/12/2020 8:28 AM, Thomas Schmitt wrote:
> Hi,
>
> i got a message from the mailing list server about:
>
>   From: marcellusmajor@agetechnology.com on Mon Oct 12 03:59:55 2020
>   Subject: Re: Help Creating Linux ISO
>
> with
>   Cause: Message body is too big: 53762 bytes with a limit of 40 KB
> and the demand to approve your mail. I did, but the mail seems to have
> vanished nevertheless.
>
> So strip off what is unnecessary before you resend it and send me a Cc:
> so that i know what's in it if the server rejects it again.
>
>
> Have a nice day :)
>
> Thomas
>