[Error] /etc/localtime integration with the host failed, runtime sync for /etc/localtime disabled. Error: An error occurred

[shocklateboy92]

Describe the bug
Fails to create an ubuntu 22.04 container after failing to bind mount /etc/localtime

To Reproduce

1. distrobox create -i ubuntu:22.04 -n ubuntu-test --init --home $HOME/containers/ubuntu-test
2. distrobox enter ubuntu-test

Expected behavior
Container is successfully created

Logs

+ mount_bind /run/host/etc/localtime /etc/localtime ro
+ source_dir=/run/host/etc/localtime
+ target_dir=/etc/localtime
+ mount_flags=
+ [ 3 -gt 2 ]
+ mount_flags=ro
+ [ -L /run/host/etc/localtime ]
+ init_readlink /run/host/etc/localtime
+ ls -l /run/host/etc/localtime
+ grep -Eo \->.*
+ cut -d  -f2-
+ sed s|\.\./|/|g
+ source_dir=/usr/share/zoneinfo/America/Chicago
+ printf %s /usr/share/zoneinfo/America/Chicago
+ grep -q /run/host
+ source_dir=/run/host/usr/share/zoneinfo/America/Chicago
+ [ ! -d /run/host/usr/share/zoneinfo/America/Chicago ]
+ [ ! -f /run/host/usr/share/zoneinfo/America/Chicago ]
+ [ -e /etc/localtime ]
+ findmnt /etc/localtime
+ [ -L /etc/localtime ]
+ rm -f /etc/localtime
+ [ -d /run/host/usr/share/zoneinfo/America/Chicago ]
+ [ -f /run/host/usr/share/zoneinfo/America/Chicago ]
+ dirname /etc/localtime
+ [ ! -d /etc ]
+ touch /etc/localtime
+ [ ro =  ]
+ mount --rbind -o ro /run/host/usr/share/zoneinfo/America/Chicago /etc/localtime
mount: /etc/localtime: filesystem was mounted, but any subsequent operation failed: Unknown error 5005.
+ printf Warning: failed to bind mount %s to %s using option %s\n /run/host/usr/share/zoneinfo/America/Chicago /etc/localtime ro
Warning: failed to bind mount /run/host/usr/share/zoneinfo/America/Chicago to /etc/localtime using option ro
+ return 1
+ printf Warning: %s integration with the host failed, runtime sync for %s disabled.\n /etc/localtime /etc/localtime
Warning: /etc/localtime integration with the host failed, runtime sync for /etc/localtime disabled.
+ [ -f /run/host/etc/localtime ]
+ rm -f /etc/localtime
rm: cannot remove '/etc/localtime': Device or resource busy
+ [ 1 -ne 0 ]
+ printf Error: An error occurred\n
Error: An error occurred
time="2024-12-01T23:52:32-06:00" level=debug msg="Called logs.PersistentPostRunE(podman --log-level debug logs ubuntu-intune)"
time="2024-12-01T23:52:32-06:00" level=debug msg="Shutting down engines"
time="2024-12-01T23:52:32-06:00" level=info msg="Received shutdown.Stop(), terminating!" PID=47893

Full log (and podman log) is attached.
podman.log
distrobox.log

Desktop (please complete the following information):

• Are you using podman, docker or lilipod?
  • podman
• Which version or podman, docker or lilipod?
  • podman version 5.3.1
• Which version of distrobox?
  • distrobox: 1.8.0
• Which host distribution?
  • KDE Linux (based on Arch Linux)
• How did you install distrobox?
  • pacman (arch repos)

Additional context

as far as I can tell, my /etc/localtime is just a regular symlink pointing to /usr/share/zoneinfo/America/Chicago

[shocklateboy92]

Okay, I figured out the issue.

distrobox/distrobox-init

Lines 268 to 306 in 18053c2

	get_locked_mount_flags()
	{
	src="$1"
	prev=""
	locked_flags=""
	# If findmnt does not exist, exit
	if ! command -v findmnt 2> /dev/null > /dev/null; then
	return 0
	fi
	# If we can't read the file/directory, exit
	if ! ls "${src}" 2> /dev/null > /dev/null; then
	return 0
	fi
	# Get mount flags of given file/directory, using nearest mountpoint.
	# Earlier versions of findmnt did not check parents until it found a mountpoint,
	# so we use a workaround with dirname.
	while true; do
	flags="$(findmnt --noheadings --output OPTIONS --target "${src}" || :)"
	# shellcheck disable=SC2181
	if [ -n "${flags}" ]; then
	break
	fi
	prev="${src}"
	src="$(dirname "${src}")"
	[ "${src}" = "${prev}" ] && return 1
	done
	for flag in nodev noexec nosuid; do
	if printf "%s" "${flags}" | grep -q "${flag}"; then
	# Locked flag found, append to list while avoiding leading/trailing commas
	locked_flags="${locked_flags:+${locked_flags},}${flag}"
	fi
	done
	printf "%s" "${locked_flags}"
	}

get_locked_mount_flags checks if there are any flags that need to be passed to the bind mount for the file. However, if the file is a symlink the the flags of the destination must also be checked and passed. It doesn't currently handle this case.

PR incoming.