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net: 修复特殊情况下 dns 写入后又被清空

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bin456789 2025-05-20 11:12:58 +08:00
parent 8a3ef0c875
commit 8895d23082
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1 changed files with 7 additions and 2 deletions
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9
initrd-network.sh
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@ -466,11 +466,16 @@ if ! $ipv6_has_internet; then
fi
# 如果联网了，但没获取到默认 DNS，则添加我们的 DNS
if $ipv4_has_internet && ! { [ -e /etc/resolv.conf ] && is_have_ipv4_dns; }; then
# 有一种情况是，多网卡，且能上网的网卡先完成了这个脚本，不能上网的网卡后完成
# 无法上网的网卡通过 flush_ipv4_config 删除了不能上网的 IP 和 dns
# （原计划是删除无法上网的网卡 dhcp4 获取的 dns，但实际上无法区分）
# 因此这里直接添加 dns，不判断是否联网
if ! is_have_ipv4_dns; then
echo "nameserver $ipv4_dns1" >>/etc/resolv.conf
echo "nameserver $ipv4_dns2" >>/etc/resolv.conf
fi
if $ipv6_has_internet && ! { [ -e /etc/resolv.conf ] && is_have_ipv6_dns; }; then
if ! is_have_ipv6_dns; then
echo "nameserver $ipv6_dns1" >>/etc/resolv.conf
echo "nameserver $ipv6_dns2" >>/etc/resolv.conf
fi