在proxmox上的LXC一直有個問題 今天終於解決了
記錄一下
當部屬完LXC要更新時出現以下的情況
#dnf -y update
Extra Packages for Enterprise Linux 8 - Next - x86_64 0.0 B/s | 0 B 00:00
Errors during downloading metadata for repository 'epel-next':
- Curl error (6): Couldn't resolve host name for https://mirrors.fedoraproject.org/metalink?repo=epel-next-8&arch=x86_64&infra=stock&content=centos [Could not resolve host: mirrors.fedoraproject.org]
Error: Failed to download metadata for repo 'epel-next': Cannot prepare internal mirrorlist: Curl error (6): Couldn't resolve host name for https://mirrors.fedoraproject.org/metalink?repo=epel-next-8&arch=x86_64&infra=stock&content=centos [Could not resolve host: mirrors.fedoraproject.org]
檢查一下 /etc/resolv.conf
cat /etc/resolv.conf
# Generated by NetworkManager
search abc.com
發現沒有設定nameserver
可是這個值在佈署LXC時確實有輸入
後來發現可能是 NetworkManager 的問題
導致proxmox 要修改 /etc/resolv.conf 的時候出問題
本來是想直接用 NetworkManager 來處理
直接 nmtui
結果預設沒有安裝
只好再自己裝
# dnf install -y NetworkManager-tui
在 nmtui 裡設定好 nameserver 後重開
在 /etc/resolv.conf 裡還是沒看到 nameserver
手動把nameserver 加入/etc/resolv.conf 也沒用
重開後就會消失了
於是決定把 NetworkManager 停掉
# systemctl stop NetworkManager.service
# systemctl disable NetworkManager.service
再安裝使用 network-scripts
# dnf install -y network-scripts
# systemctl enable network
改完後重開
再看一下 /etc/resolv.conf
# cat /etc/resolv.conf
# --- BEGIN PVE ---
search abc.com
nameserver 8.8.8.8
# --- END PVE ---
醬就正常了
https://forum.proxmox.com/threads/proxmox-6-0-9-dns-host-settings-reset-every-time.59434/
https://www.thegeekdiary.com/how-to-disable-networkmanager-in-centos-rhel-8/
