v0.15.2 fails to install k0s on Flatcar hosts (regression from v0.15.0)

[twz123]

Relevant log excerpt:

time="14 Jun 23 08:39 CEST" level=info msg="==> Running phase: Install k0s binaries on hosts"
time="14 Jun 23 08:39 CEST" level=debug msg="[ssh] 52.59.122.63:22: executing sudo -s -- test -e /tmp/tmp.qUkCFJ7Go8 2> /dev/null"
time="14 Jun 23 08:39 CEST" level=debug msg="[ssh] 52.59.122.63:22: executing sudo -s -- install -m 0755 -o root -g root -d \"/usr/local/bin\""
time="14 Jun 23 08:39 CEST" level=debug msg="[ssh] 52.59.122.63:22: executing sudo -s -- install -m 0750 -o root -g root \"/tmp/tmp.qUkCFJ7Go8\" \"/usr/local/bin/k0s\""
time="14 Jun 23 08:39 CEST" level=debug msg="[ssh] 52.59.122.63:22: (stderr) install: cannot create regular file '/usr/local/bin/k0s': Read-only file system"
time="14 Jun 23 08:39 CEST" level=info msg="* Running clean-up for phase: Install k0s binaries on hosts"
time="14 Jun 23 08:39 CEST" level=info msg="[ssh] 52.59.122.63:22: cleaning up k0s binary tempfile"
time="14 Jun 23 08:39 CEST" level=debug msg="[ssh] 52.59.122.63:22: executing sudo -s -- rm -f -- /tmp/tmp.qUkCFJ7Go8 2> /dev/null"
time="14 Jun 23 08:39 CEST" level=info msg="###### New session ######"
time="14 Jun 23 08:39 CEST" level=error msg="apply failed - log file saved to /home/twieczorek/.cache/k0sctl/k0sctl.log"
time="14 Jun 23 08:39 CEST" level=fatal msg="failed on 1 hosts:\n - [ssh] 52.59.122.63:22: failed to install k0s binary: update k0s binary: install k0s binary: command failed: client exec: ssh session wait: Process exited with status 1"

Full logs:

• fail_15_2.log
• success_0_15_0.log

OS info:

Linux 5.15.111-flatcar #1 SMP Mon May 29 09:16:20 -00 2023 x86_64 GNU/Linux
NAME="Flatcar Container Linux by Kinvolk"
ID=flatcar
ID_LIKE=coreos
VERSION=3510.2.2
VERSION_ID=3510.2.2
BUILD_ID=2023-05-29-0939
SYSEXT_LEVEL=1.0
PRETTY_NAME="Flatcar Container Linux by Kinvolk 3510.2.2 (Oklo)"
ANSI_COLOR="38;5;75"
HOME_URL="https://flatcar.org/"
BUG_REPORT_URL="https://issues.flatcar.org"
FLATCAR_BOARD="amd64-usr"
CPE_NAME="cpe:2.3:o:flatcar-linux:flatcar_linux:3510.2.2:*:*:*:*:*:*:*"

[kke]

This was done in #460 - apparently /usr/local/bin on flatcar can't be used.