Debian稳定版更新较慢(在发布以后只进行错误修复以及安全更新),因此如果想要使用最新的软件包(例如最新版本的内核),推荐使用Backports源。一般情况下Backports的软件包来自Debian Testing(部分来自Debian Sid,例如安全更新),经过重新编译后发布,一般来说算是稳定的。

Backports和Testing一样,没有及时的安全更新,这一点需要注意。

如果想要使用Backports源,可以修改/etc/apt/sources.list(容器中的Debian 12可能是/etc/apt/sources.list.d/debian.sources),添加Backports源,例如原来的/etc/apt/sources.list是这样的:

deb https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware

deb-src https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware

deb https://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

deb-src https://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

deb https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware

deb-src https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware

修改为:

deb https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware

deb-src https://deb.debian.org/debian/ bookworm main contrib non-free non-free-firmware

deb https://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

deb-src https://security.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

deb https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware

deb-src https://deb.debian.org/debian/ bookworm-updates main contrib non-free non-free-firmware

deb https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware

deb-src https://deb.debian.org/debian/ bookworm-backports main contrib non-free non-free-firmware

即添加了bookworm-backports(Debian 12的Backports源,如果是别的版本则为版本代号-backports),之后apt update更新软件包索引,然后安装需要安装的Backports软件包:

apt install -t bookworm-backports 需要安装的软件包

例如安装amd64架构的Linux Cloud内核(精简版本的Linux内核,适合用于服务器环境。如果想要安装非精简版本的Linux内核则为apt install -t bookworm-backports linux-image-amd64)

apt install -t bookworm-backports linux-image-cloud-amd64

如果想要安装指定的Linux内核版本,可以试着使用linux-image-6.12.9+bpo-cloud-amd64这样的的指定版本的方式安装(未测试)。

如果安装的是内核,重启之后即可使用新安装的Linux内核。

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