我刚刚安装了 Ubuntu 20.04.1 LTS 并安装了 Steam 启动器。当我运行它时，它会弹出。
Steam needs to install these additional packages:
libgl1-mesa-dri:i386, libgl1:i386, libc6:i386
[sudo] password for pukar:
..........W: Failed to fetch http://np.archive.ubuntu.com/ubuntu/dists/focal/InRelease Could not connect to np.archive.ubuntu.com:80 (120.89.98.2), connection timed out
W: Failed to fetch http://np.archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease Unable to connect to np.archive.ubuntu.com:http:
W: Failed to fetch http://np.archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease Unable to connect to np.archive.ubuntu.com:http:
W: Some index files failed to download. They have been ignored, or old ones used instead.
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libc6:i386 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
libcrypt1
Package libgl1:i386 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
Package libgl1-mesa-dri:i386 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'libgl1-mesa-dri:i386' has no installation candidate
E: Package 'libgl1:i386' has no installation candidate
E: Package 'libc6:i386' has no installation candidate
Press return to continue:
我对 Linux 真的很陌生，只知道非常基础的知识。我发现安装这些库可以解决它，但我还没有找到任何方法。