fakeroot missing on test-docker-ubuntu2010-armv8l-2

[smlambert]

Please set the title to indicate the test name and machine name where known.

To make it easy for the infrastructure team to repeat and diagnose, please
answer the following questions:

• test suite/name (e.g, BUILD_LIST, TARGET, CUSTOM_TARGET)? BUILD_LIST=openjdk, TARGET=jdk_tools
• a link into recent Test_ job on https://ci.adoptium.net which showed the failure
• https://ci.adoptium.net/job/Test_openjdk21_hs_extended.openjdk_aarch64_linux_testList_1/37/testReport/
• Hyperlink to re-run in Grinder: rerun link
• Is there an existing issue elsewhere covering this? no, but many past related ones
• Which machine(s) does it work on? See Deep History - test-docker-ubuntu1804-armv8l-4, test-docker-fedora35-armv8l-1
• Which machine(s) does it fail on? test-docker-ubuntu2010-armv8l-2

Any other details:

[17:29:47.566] Running fakeroot
[17:29:47.572] jdk.jpackage.internal.ConfigException: Can not find fakeroot. Reason: Cannot run program "fakeroot": error=2, No such file or directory
	at jdk.jpackage/jdk.jpackage.internal.ToolValidator.validate(ToolValidator.java:124)
	at jdk.jpackage/jdk.jpackage.internal.LinuxPackageBundler.validate(LinuxPackageBundler.java:76)
	at jdk.jpackage/jdk.jpackage.internal.Arguments.generateBundle(Arguments.java:689)
	at jdk.jpackage/jdk.jpackage.internal.Arguments.processArguments(Arguments.java:555)
	at jdk.jpackage/jdk.jpackage.main.Main.execute(Main.java:92)
	at jdk.jpackage/jdk.jpackage.main.Main.main(Main.java:53)

[sxa]

With Ubuntu 20.10 being out of support the package couldn't be automatically installed, and in fact the desired version from the package manager is no longer in http://ports.ubuntu.com/ubuntu-ports/pool/main/f/fakeroot/

I have manually added "one release back" from that directory, specifically these.

root@93d2b4e13a22:/# dpkg -l | grep fakeroot
ii  fakeroot                    1.24-1                            arm64        tool for simulating superuser privileges
ii  libfakeroot:arm64           1.24-1                            arm64        tool for simulating superuser privileges - shared libraries
root@93d2b4e13a22:/#