今天尝试根据 Ubuntu 软件建议进行升级时，我看到以下错误。这是我第一次看到这个错误。我的 18.04 系统已经运行了好几个月了。
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$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.1 LTS"
$ sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
libc6-armel-cross libc6-armhf-cross libc6-dev-armel-cross libc6-dev-armhf-cross
4 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/5,871 kB of archives.
After this operation, 0 B of additional disk space will be used.
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