Proxmox VE 8.0正式版发布
Proxmox VE 需要升级到7.4，验证一下。
root@pve99:~# pveversion
pve-manager/7.4-13/46c37d9c (running kernel: 5.13.19-6-pve)
root@pve99:~# pve7to8
= CHECKING VERSION INFORMATION FOR PVE PACKAGES =
Checking for package updates..
PASS: all packages up-to-date
Checking proxmox-ve package version..
PASS: proxmox-ve package has version >= 7.4-1
= SUMMARY =
TOTAL: 29
PASSED: 22
SKIPPED: 4
WARNINGS: 3
FAILURES: 0
更换apt源
sed -i 's/bullseye/bookworm/g' /etc/apt/sources.list
sed -i -e 's/bullseye/bookworm/g' /etc/apt/sources.list.d/pve-install-repo.list/etc/apt/source.list 完整内容：
deb https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free
deb https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free
deb-src https://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free/etc/apt/source.list.d/pve-no-sub.list完整内容：
deb http://mirrors.ustc.edu.cn/proxmox/debian/pve bookworm pve-no-subscription直接复制拿去用吧，比官方速度快多了！
执行更新和升级
apt update
apt dist-upgrade
要更新的包不少啊！
顺利升级完毕，多了个本地网络
