# sudo apt-get update
Get:1 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:2 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:3 http://archive.canonical.com/ubuntu bionic InRelease
Hit:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Fetched 88.7 kB in 0s (99.6 kB/s)
Reading package lists... Done
尽管它正在尝试从 Bionic 更新
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.6 LTS
Release: 16.04
Codename: xenial
当我这样做时，它是 Xenial。我甚至无法 ssh 到我的服务器，我需要使用我的 VPS 中的紧急控制台工具。如果我尝试安装新软件包，它不起作用。它说要升级我的内核，但我无法这样做，因为 VPS 不允许这样做。
$ sudo apt-get install openssh-server
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
libc-bin libc6 libgssapi-krb5-2 libxext6 libxmuu1 openssh-client openssh-sftp-server python3-certifi python3-chardet python3-idna python3-pkg-resources python3-requests python3-six
python3-urllib3 ssh-import-id xauth
Suggested packages:
glibc-doc locales krb5-doc krb5-user keychain libpam-ssh monkeysphere ssh-askpass molly-guard rssh ufw python3-setuptools python3-cryptography python3-openssl python3-socks
The following NEW packages will be installed:
libgssapi-krb5-2 libxext6 libxmuu1 openssh-client openssh-server openssh-sftp-server python3-certifi python3-chardet python3-idna python3-pkg-resources python3-requests python3-six
python3-urllib3 ssh-import-id xauth
The following packages will be upgraded:
libc-bin libc6
2 upgraded, 15 newly installed, 0 to remove and 605 not upgraded.
Need to get 0 B/5166 kB of archives.
After this operation, 9286 kB of additional disk space will be used.
Do you want to continue? [Y/n]
dpkg: error processing archive /var/cache/apt/archives/libc6_2.27-3ubuntu1_amd64.deb (--unpack):
subprocess new pre-installation script returned error exit status 1
Processing triggers for libc-bin (2.23-0ubuntu11) ...
Errors were encountered while processing:
/var/cache/apt/archives/libc6_2.27-3ubuntu1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)