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二月

二月#

升级一台 Vultr 的 Arch 机器#

date:

2021-02-04

看了一下最近的一次更新已经是三年前:

$ cat /var/log/pacman.log | grep 'full system upgrade'
...
[2018-01-05 10:55] [PACMAN] starting full system upgrade
[2018-02-18 18:07] [PACMAN] starting full system upgrade
[2018-02-18 18:09] [PACMAN] starting full system upgrade

根据那个时间点翻看一下可能导致问题的变更：

  1. https://archlinux.org/news/libbloom16-2-update-requires-manual-intervention/

  2. https://archlinux.org/news/base-group-replaced-by-mandatory-base-package-manual-intervention-required/

  3. https://archlinux.org/news/now-using-zstandard-instead-of-xz-for-package-compression/

  4. https://archlinux.org/news/sshd-needs-restarting-after-upgrading-to-openssh-82p1/

尝试安装软件包报错:

# pacman -S ncdu
error: could not open file /var/cache/pacman/pkg/ncdu-1.15.1-2-x86_64.pkg.tar.zst: Unrecognized archive format
error: failed to commit transaction (cannot open package file)
Errors occurred, no packages were upgraded.

这是去年 Arch 改用 zstd 代替 xz [1] 压缩包导致的，Eli Schwartz 提供了静态新版 pacman 用来帮助来不及平滑更新的用户，下载之:

$ wget https://pkgbuild.com/~eschwartz/repo/x86_64-extracted/pacman-static
$ chmod +x pacman-static

先更新 keyring 防止不认新包的签名:

$ sudo ./pacman-static -S archlinux-keyring

根据 1 的要求加个 overwrite:

$ sudo ./pacman-static -Syu --overwrite usr/lib/libbloom.so.1
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