A compute node fetches the legacy Genesis kernel and initramfs, the kernel starts, and then
nothing else happens: doxcat never runs, the node acquires no address, sshd refuses every
connection and the node stays at status=powering-on. The five genesis test cases in
xCAT-test/autotest/testcase/genesis have never passed. VersatusHPC/xcat-internal#78.
Three holes in the image, each fatal on its own. dracut_105/el/xcat-cmdline.sh ends in
`while :; do tmux attach-session -t doxcat || tmux new-session -s doxcat doxcat; done`, and the
image carries no locale data, so tmux exits with "need UTF-8 locale" and the loop spins
without ever reaching doxcat. module-setup.sh does not install
/usr/libexec/openssh/sshd-session, which OpenSSH 9.8 and later exec for every connection and
which EL9 now ships. xCAT-genesis-base.spec does not BuildRequire dhcp-client, so dhclient is
absent from the build chroot; dracut_install reports the missing binary and returns, and the
module install function keeps going, so the image ships without it.
xcat-cmdline.sh now resolves xcat_console_mode() once and runs doxcat directly when the
terminal multiplexer cannot start a session; the same shape replaces the screen loop on
Ubuntu. module-setup.sh installs the OpenSSH session helpers and the C.utf8 locale where they
exist. The spec BuildRequires dhcp-client on the releases that package it, and runs the new
xCAT-genesis-builder/verify-genesis-payload over the extracted payload, which fails the build
when sshd needs a helper the image lacks, when tmux has no UTF-8 locale, or when a binary the
caller named is missing.
The same runs exposed four defects in the test cases themselves. test.sh defined its synthetic
node as ppc64le whatever the management node was, so nodeset could not find a genesis kernel on
x86_64. genesistest.pl get_os() matched neither AlmaLinux nor Rocky and reported the OS as
unsupported. The -g check read $? instead of check_genesis_file()'s return value, so it could
never fail. And testxdsh() met "REMOTE HOST IDENTIFICATION HAS CHANGED" from the second boot
on, because Genesis makes new host keys every boot and nothing dropped the stale known_hosts
entry. test.sh now derives the node arch from uname and takes the tftp root from TFTPDIR,
get_os() recognises the redhat family, report_genesis_files() carries the result to an exit
status, and forget_host_keys() runs makeknownhosts -r before each probe.
Tests: genesis_console_mode.t drives xcat_console_mode() with the multiplexer shadowed;
genesis_payload_verification.t drives the verifier over payload trees carrying each hole;
genesis_testcase_helpers.t drives get_os(), check_genesis_file(), report_genesis_files() and
testxdsh(); genesis_incorrectmasterip_check.t runs test.sh against a scratch tftp root. Each
fails on the parent commit. The verifier also reports all three holes against the released
xCAT-genesis-base-x86_64-2.19.0-snap202609021858 payload.
Signed-off-by: Daniel Hilst <392820+dhilst@users.noreply.github.com>
(cherry picked from commit cb6021eb3cdb3abc75e4dd6704cb42b28074e140)
Signed-off-by: Daniel Hilst <392820+dhilst@users.noreply.github.com>
Daniel Hilst