tpm2 encryption fails with "tpm2_pcrlist: command not found" on Fedora 31

[jeremyvisser]

When I try to encrypt something with my TPM2 after upgrading to Fedora 31, I get this error:

$ echo hi | sudo clevis encrypt tpm2 '{}'
/usr/bin/clevis-encrypt-tpm2: line 62: tpm2_pcrlist: command not found

The tpm2_pcrlist tool is no longer shipped by the tpm2-tools package:

$ rpm -q tpm2-tools 
tpm2-tools-4.0.1-1.fc31.x86_64

$ rpm -ql tpm2-tools | grep /usr/bin/tpm2_pcr
/usr/bin/tpm2_pcrallocate
/usr/bin/tpm2_pcrevent
/usr/bin/tpm2_pcrextend
/usr/bin/tpm2_pcrread
/usr/bin/tpm2_pcrreset

Even though the issue title is similar, I believe this issue is unrelated to #74. In this issue, the cause is that the tpm2_pcrlist tool no longer exists in a dependency, whereas in the other issue the cause was that tpm2_pcrlist wasn't being copied to the initramfs.

[jeremyvisser]

Actually, it looks like this was already fixed in c86cf48, but the fix wasn't shipped in Fedora 31.

A bug already exists in Fedora for this issue: https://bugzilla.redhat.com/show_bug.cgi?id=1770480