Sorry, this will not be prioritized for 22.04. Please upgrade to 24.04
if you are able.
** Changed in: systemd (Ubuntu)
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/2039117
Title:
Intermittent problem accessing TPM during 22.04 boot
Status in systemd package in Ubuntu:
Won't Fix
Bug description:
I am using 22.04 and am hitting a bug accessing the TPM during start-
up to decrypt a LUKS encrypted drive (data drive, not system drive).
With a Virtualbox 22.04 VM, the problem only happens with the HWE
kernel and occurs 8 out of 10 times. 2 out of 10 times the system
boots correctly. When using the non HWE kernel it works 10 out of 10
times.
With a physical server, Supermicro X10, the problem does not occur at
all.
My LUKS volume is named drive1. From journalctl -u
systemd-cryptsetup@drive1.service
Oct 10 07:42:08 tpm2-test systemd-cryptsetup[547]: Failed to unseal HMAC key
in TPM: tpm:error(2.0): PCR have changed since checked
The problem is discussed here -
https://github.com/systemd/systemd/issues/24906 . This also discusses
that people get different results with different kernels.
I'll not go into too much detail as this problem is already resolved in newer
versions of systemd. The fix for this problem was merged into Ubuntu's systemd
252.3-1.
https://git.launchpad.net/ubuntu/+source/systemd/commit/src/shared/tpm2-util.c?h=ubuntu/lunar&id=28f8a776415a01cacec747d831f057d3f8b9f01b
Can this fix be made available to 22.04 - systemd 249.11?
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