What were you trying to do that didn't work? While doing a LEAPP upgrade from RHEL 7.9 to 8.10, the preupgrade check crashes while scanning the grub partition table. The grub config hasn't been modified outside of using yum to install updates.

Please provide the package NVR for which bug is seen:

How reproducible: On this system, every time

Steps to reproduce

1. Unregister from Satellite following https://access.redhat.com/solutions/4525751 
2. Re-register to RHSM and install leapp-upgrade
   subscription-manager register
   subscription-manager subscribe -pool=<UniquePoolID>
   subscription-manager repos -enable rhel-7-server-rpms
   subscription-manager repos -enable rhel-7-server-extras-rpms
   subscription-manager release -unset
   yum update -y
   reboot
   yum install leapp-upgrade

3. leapp preupgrade -target 8.10

Expected results: Normal LEAPP issues like complaining about the floppy driver, existence of hmac-ripemd160 in the sshd_config, etc.

Actual results

...

====> * sctp_read_status
        Determines whether or not the SCTP kernel module might be wanted.
====> * scan_grub_device_partition_layout
        Scan all identified GRUB devices for their partition layout.
Process Process-335:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/repository/actor_definition.py", line 74, in _do_run
    actor_instance.run(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/actors/_init_.py", line 289, in run
    self.process(*args)
  File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/scangrubdevpartitionlayout/actor.py", line 18, in process
    scan_layout_lib.scan_grub_device_partition_layout()
  File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/scangrubdevpartitionlayout/libraries/scan_layout.py", line 90, in scan_grub_device_partition_layout
    dev_info = get_partition_layout(device)
  File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/scangrubdevpartitionlayout/libraries/scan_layout.py", line 78, in get_partition_layout
    part_start = int(part_info[2]) if len(part_info) == len(part_all_attrs) else int(part_info[1])
ValueError: invalid literal for int() with base 10: '*'
2024-07-10 10:18:42.508 ERROR    PID: 6023 leapp.workflow.FactsCollection: Actor scan_grub_device_partition_layout has crashed: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/leapp/repository/actor_definition.py", line 74, in _do_run
    actor_instance.run(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/actors/_init_.py", line 289, in run
    self.process(*args)
  File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/scangrubdevpartitionlayout/actor.py", line 18, in process
    scan_layout_lib.scan_grub_device_partition_layout()
  File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/scangrubdevpartitionlayout/libraries/scan_layout.py", line 90, in scan_grub_device_partition_layout
    dev_info = get_partition_layout(device)
  File "/usr/share/leapp-repository/repositories/system_upgrade/el7toel8/actors/scangrubdevpartitionlayout/libraries/scan_layout.py", line 78, in get_partition_layout
    part_start = int(part_info[2]) if len(part_info) == len(part_all_attrs) else int(part_info[1])
ValueError: invalid literal for int() with base 10: '*'

==================================================================================================================
Actor scan_grub_device_partition_layout unexpectedly terminated with exit code: 1 - Please check the above details
==================================================================================================================

Debug output written to /var/log/leapp/leapp-preupgrade.log

============================================================
                      REPORT OVERVIEW
============================================================

Reports summary:
    Errors:                      1
    Inhibitors:                  0
    HIGH severity reports:       0
    MEDIUM severity reports:     0
    LOW severity reports:        0
    INFO severity reports:       0

Before continuing, review the full report below for details about discovered problems and possible remediation instructions:
    A report has been generated at /var/log/leapp/leapp-report.txt
    A report has been generated at /var/log/leapp/leapp-report.json

============================================================
                   END OF REPORT OVERVIEW
============================================================

Answerfile has been generated at /var/log/leapp/answerfile

ADDITIONAL INFO:

[root@<HOSTNAME> ~]# fdisk -l -u=sectors /dev/sda

Disk /dev/sda: 999.7 GB, 999653638144 bytes, 1952448512 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: 0x5b0cb686

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1              63      208844      104391   de  Dell Utility
/dev/sda2   *      208896     4403199     2097152    c  W95 FAT32 (LBA)
/dev/sda3         4403200     6500351     1048576   83  Linux
/dev/sda4         6500352  1952448511   972974080    5  Extended
/dev/sda5         6502400  1952448511   972973056   8e  Linux LVM