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Description of problem:

Nowadays it's hard to troubleshoot clevis issue happening early during boot in the initramfs phase, because even with rd.debug, clevis scripts run blindly.
This would definitely help troubleshooting when something goes wrong (PCR changes or Tang issue for example).

This can be done on RHEL/Fedora using the following snippet at the beginning of /usr/bin/clevis-luks-common-functions:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
enable_debugging() {
    # Automatically enable debugging if in initramfs phase and rd.debug
    if [ -e /usr/lib/dracut-lib.sh ]; then
        local bashopts=$-
        # Because dracut is loosely written, disable hardening options temporarily
        [[ $bashopts != *u* ]] || set +u
        [[ $bashopts != *e* ]] || set +e
        . /usr/lib/dracut-lib.sh
        [[ $bashopts != *u* ]] || set -u
        [[ $bashopts != *e* ]] || set -e
    fi
}

enable_debugging
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

Version-Release number of selected component (if applicable):

clevis-15-1.el8.x86_64

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (clevis bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:1857