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Hello,
The packages openjdk-11-jre and ca-certificates-java (at least) state in their postinst, that java needs a mounted /proc to run and then fail.
That is not quite true though: If the lib/jli subdirectory of the jvm base directory (i.e. /usr/lib/jvm/java-11-openjdk-amd64) is added to LD_LIBRARY_PATH, java runs just fine without a mounted /proc.
Now the openjdk-11-jre just knows where the jvm base directory is, and could simply add a:
LD_LIBRARY_PATH=$basedir/lib/jli:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH
to run the java binary. Similar for ca-certificates-java that needs to run java in its postinst.
Background is that I install the openjdk-11-jre in a chrooted environment where no /proc is available. This only produces the final system as a tarball though.
If you prefer to keep the check for the mounted /proc, to point people in the right direction, could the check be switched off by people like me who know what they are doing? E.g. by
running_in_chroot() {
type systemd-detect-virt >/dev/null 2>&1 && systemd-detect-virt --chroot
}
and then changing the test to
if ! running_in_chroot && ! mountpoint -q /proc; then...
Best regards, Nils Rennebarth
--
Dipl. Math Nils Rennebarth
Senior Berater Entwicklung
Division Network & Client security
secunet Security Networks AG
Tel.: +49 201 5454-3976
Fax: +49 711 900300-90
Mobil: +49 174 9750449
E-Mail:
nils.rennebarth@secunet.com
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70173 Stuttgart
www.secunet.com
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