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<p>Hello,</p>
<p>I got the following error when attempting to install the placeins
package on my system, and the error message instructed me to
report it to you. Is there any way I can install the placeins
package using tlmgr?<br>
</p>
<p><font face="Fixed">[erebus@the_void ~]$ sudo tlmgr install
placeins<br>
/opt/texlive/2018/bin/x86_64-linux/tlmgr: signature verification
error of /tmp/2jPW_0Y2Nf/Yw1ZqsWk3X from
<a class="moz-txt-link-freetext" href="http://mirrors.ibiblio.org/pub/mirrors/CTAN/systems/texlive/tlnet/tlpkg/texlive.tlpdb">http://mirrors.ibiblio.org/pub/mirrors/CTAN/systems/texlive/tlnet/tlpkg/texlive.tlpdb</a>:
cryptographic signature verification of<br>
/tmp/2jPW_0Y2Nf/xElUk31DMs<br>
against<br>
<a class="moz-txt-link-freetext" href="http://mirrors.ibiblio.org/pub/mirrors/CTAN/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512.asc">http://mirrors.ibiblio.org/pub/mirrors/CTAN/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512.asc</a><br>
failed. Output was<br>
gpg: verify signatures failed: Unknown system error<br>
<br>
Please report to <a class="moz-txt-link-abbreviated" href="mailto:texlive@tug.org">texlive@tug.org</a></font><br>
<br>
</p>
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