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Skip the IPv6 sysctl when the host kernel has no IPv6 #171

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Merged
MickLesk merged 1 commit into from
Oct 27, 2026
Merged

Skip the IPv6 sysctl when the host kernel has no IPv6 #171

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4 changes: 4 additions & 0 deletions lxc/install.func
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Original file line number Diff line number Diff line change
Expand Up @@ -1114,6 +1114,10 @@ verb_ip6() {
set_std_mode # Set STD mode based on VERBOSE

if [[ "${IPV6_METHOD:-}" == "disable" ]]; then
if [[ ! -d /proc/sys/net/ipv6 ]]; then
msg_ok "IPv6 is already disabled by the host kernel"
return 0
fi
msg_info "Disabling IPv6 (this may affect some services)"
mkdir -p /etc/sysctl.d
cat >/etc/sysctl.d/99-disable-ipv6.conf <<EOF
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