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From: Leo Nunner <l.nunner@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Mon, 12 Sep 2022 14:25:39 +0200
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Subject: [pve-devel] [PATCH v2 container] fix #4192: revamp check for
systemd version
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Instead of iterating through several folders, it might just be easier to
check the ldd output of /sbin/init and getting the version from there.
Furthermore, the regex for checking the version has been adapted so that
it's more precise.
Signed-off-by: Leo Nunner <l.nunner@proxmox.com>
---
This solution does actually feel cleaner than manually checking all the folders
every time.
src/PVE/LXC/Setup/Base.pm | 27 +++++++++++++++++----------
1 file changed, 17 insertions(+), 10 deletions(-)
diff --git a/src/PVE/LXC/Setup/Base.pm b/src/PVE/LXC/Setup/Base.pm
index cc12914..44b88d9 100644
--- a/src/PVE/LXC/Setup/Base.pm
+++ b/src/PVE/LXC/Setup/Base.pm
@@ -514,19 +514,26 @@ sub clear_machine_id {
}
}
-# tries to guess the systemd (major) version based on the existence of
-# (/usr)?/lib/systemd/libsystemd-shared<version>.so. It was introduced in v231.
+# tries to guess the systemd (major) version based on the
+# libsystemd-shared<version>.so linked with /sbin/init
sub get_systemd_version {
my ($self) = @_;
- my $sd_lib_dir = $self->ct_is_directory("/lib/systemd") ?
- "/lib/systemd" : "/usr/lib/systemd";
- my $libsd = PVE::Tools::dir_glob_regex($sd_lib_dir, "libsystemd-shared-.+\.so");
- if (defined($libsd) && $libsd =~ /libsystemd-shared-(\d+)(?:\..*)?\.so/) {
- return $1;
- }
-
- return undef;
+ my $version = undef;
+ PVE::Tools::run_command(
+ [
+ 'ldd',
+ '/sbin/init'
+ ],
+ outfunc => sub {
+ my $line = shift;
+ if ($line =~ /^\s*libsystemd-shared-(\d+)(?:\.[a-zA-Z0-9]*)?\.so/) {
+ $version = $1;
+ }},
+ errmsg => "ldd on /sbin/init failed"
+ );
+
+ return $version;
}
sub unified_cgroupv2_support {
--
2.30.2