kernel_lockdown(7) describes removed SysRq for lifting lockdown

[dann frazier]

[Impact]
Documentation tells users they can lift lockdown locally via a SysRq, when in fact we do not support this (confirmed w/ @sforshee on kernel team).

[Test Case]
man kernel_lockdown - look for documentation of the SysRq feature.

[Fix]
https://github.com/alejandro-colomar/man-pages/commit/09df87e9ee3e1a429a2c1709dfd16ec8ff0f616

[Where Problems Could Occur]
The only potential problem I can see is the corner case risk there is with any update - maybe the build environment has changed in some way that introduces a regression elsewhere in the package? /me waves hands.

[Launchpad Janitor (janitor)]

This bug was fixed in the package manpages - 5.10-1ubuntu1

---------------
manpages (5.10-1ubuntu1) impish; urgency=medium

  * kernel_lockdown.7: Remove description of unsupported lockdown lift
    mechanism via SysRq. LP: #1931171.

 -- dann frazier <email address hidden> Thu, 10 Jun 2021 13:18:47 -0600

[Timo Aaltonen (tjaalton)]

Hello dann, or anyone else affected,

Accepted manpages into hirsute-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/manpages/5.10-1ubuntu0.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-hirsute to verification-done-hirsute. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-hirsute. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

[dann frazier (dannf)]

Verification:

ubuntu@dannf-hirsute:~$ man kernel_lockdown | grep -i sysrq
ubuntu@dannf-hirsute:~$ dpkg -l manpages
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-===============-============-===============================>
ii manpages 5.10-1ubuntu0.1 all Manual pages about using a GNU/

[Launchpad Janitor (janitor)]

This bug was fixed in the package manpages - 5.10-1ubuntu0.1

---------------
manpages (5.10-1ubuntu0.1) hirsute; urgency=medium

  * kernel_lockdown.7: Remove description of unsupported lockdown lift
    mechanism via SysRq. LP: #1931171.

 -- dann frazier <email address hidden> Thu, 10 Jun 2021 13:26:47 -0600

[Łukasz Zemczak (sil2100)]

The verification of the Stable Release Update for manpages has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.