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Description of problem:
When creating a UEFI bootable CD using a efiboot.img file with size >= 32MB, genisoimage creates a Boot Catalog Section Entry with invalid data (Load Sectors = 0):
# dumpet -i test_efiboot_32MB.img.iso
...
Boot Catalog Section Entry:
Entry is bootable
Boot Media emulation type: no emulation
Media load address: 0 (0x0000)
System type: 0 (0x00)
Load Sectors: 0 (0x0000)
Load LBA: 47 (0x0000002f)
This prevents the CD to load properly on some systems, e.g. HP Superdome-X systems with BIOS 8.5.3.
More precisely, the Load Sectors information is ok until efiboot.img size is 32765 x 1KB blocks.
Version-Release number of selected component (if applicable):
genisoimage-1.1.11-23.el7.x86_64
How reproducible:
Always
Steps to Reproduce: (see attached reproducer and README)
1. Create a efiboot.img file with size 32MB or more
2. Populate it
3. Generate CD
4. Verify informations using "dumpet"
Actual results:
No error, but invalid "Load Sectors" count
Expected results:
Error
When Red Hat shipped 7.7 on Aug 6, 2019 Red Hat Enterprise Linux 7 entered Maintenance Support 1 Phase.
https://access.redhat.com/support/policy/updates/errata#Maintenance_Support_1_Phase
That means only "Critical and Important Security errata advisories (RHSAs) and Urgent Priority Bug Fix errata advisories (RHBAs) may be released". This BZ does not appear to meet Maintenance Support 1 Phase criteria so is being closed WONTFIX. If this is critical for your environment please open a case in the Red Hat Customer Portal, https://access.redhat.com ,provide a thorough business justification and ask that the BZ be re-opened for consideration in the next minor release.