Yes this affects me as well. Still true as of apt 1.6.6 (Ubuntu 18.04)
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https://bugs.launchpad.net/bugs/1442775
Title:
apt-get --ignore-missing doesn't ignore missing packages
Status in apt package in Ubuntu:
Confirmed
Bug description:
The man page for apt-get states:
-m, --ignore-missing, --fix-missing
Ignore missing packages; if packages cannot be retrieved or fail
the integrity check after retrieval (corrupted package files), hold back those
packages and handle the
result. Use of this option together with -f may produce an error
in some situations. If a package is selected for installation (particularly if
it is mentioned on the
command line) and it could not be downloaded then it will be
silently held back. Configuration Item: APT::Get::Fix-Missing.
However, when removing or purging packages, it does /not/ actually
ignore missing packages:
build@ub14test:~/p4/zimbra/main/ThirdParty/openldap$ sudo apt-get purge -y
--ignore-missing zimbra-openssl-lib
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package zimbra-openssl-lib
build@ub14test:~/p4/zimbra/main/ThirdParty/openldap$ echo $?
100
This causes some pain when using apt-get in a Makefile and wanting to
ensure custom packages have been removed.
dpkg handles this correctly:
build@ub14test:~/p4/zimbra/main/ThirdParty/openldap$ sudo dpkg --purge
zimbra-openssl-lib
dpkg: warning: ignoring request to remove zimbra-openssl-lib which isn't
installed
build@ub14test:~/p4/zimbra/main/ThirdParty/openldap$ echo $?
0
however you then lose dependency tracking.
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