Leapp Upgrade of RHEL failed with error : FileNotFoundError: [Errno 2] No such file or directory: '/var/cache/dnf/metadata_lock.pid'

Solution Verified - Updated -

Issue

  • Unable to upgrade RedHat Enterprise Linux server from RHEL-8 to RHEL-9 using leapp utility. The following error is reported during the upgrade:

    File "/usr/lib/python3.6/site-packages/dnf/base.py", line 429, in fill_sack
self.repos.all().disable()
File "/usr/lib/python3.6/site-packages/dnf/lock.py", line 147, in __exit__
os.unlink(self.target)
FileNotFoundError: [Errno 2] No such file or directory: '/var/cache/dnf/metadata_lock.pid'

Environment

  • Red Hat Enterprise Linux 8

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