我刚刚在双启动上安装了 Ubuntu 21.04，但是当我尝试使用时sudo apt update收到以下错误：
Ign:1 http://ppa.launchpad.net/mc3man/xerus-media/ubuntu hirsute
InRelease
Ign:2 http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04
InRelease
Hit:3 http://archive.ubuntu.com/ubuntu hirsute InRelease
Hit:4 http://deb.playonlinux.com trusty InRelease
Err:5 http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 Release 404 Not Found [IP: 195.135.221.134 80]
Err:6 http://ppa.launchpad.net/mc3man/xerus-media/ubuntu hirsute Release 404 Not Found [IP: 91.189.95.85 80] Reading package lists... Done
E: The repository 'http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by
default.
N: See apt-secure(8) manpage for repository creation and user
configuration details.
E: The repository 'http://ppa.launchpad.net/mc3man/xerus-media/ubuntu hirsute Release'
does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
我尝试了很多解决方案，但都不起作用。如果我尝试安装任何应用程序（如 steam），我都会得到以下信息：
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have requested an impossible
situation or if you are using the unstable distribution that some
required packages have not yet been created or been moved out of
Incoming. The following information may help to resolve the situation:
The following packages have unmet dependencies: libatomic1:i386 :
Depends: gcc-11-base:i386 (= 11-20210417-1ubuntu1) but it is not
installable
Depends: libc6:i386 (>= 2.4) but it is not installable libbsd0:i386 : Depends: libc6:i386 (>= 2.33) but it is
not installable libdrm-amdgpu1:i386 : Depends: libc6:i386 (>= 2.28)
but it is not installable libdrm-intel1:i386 : Depends: libc6:i386
(>= 2.17) but it is not installable libdrm-nouveau2:i386 : Depends:
libc6:i386 (>= 2.4) but it is not installable libdrm-radeon1:i386 :
Depends: libc6:i386 (>= 2.4) but it is not installable libdrm2:i386 :
Depends: libc6:i386 (>= 2.33) but it is not installable libedit2:i386
: Depends: libc6:i386 (>= 2.28) but it is not installable
libelf1:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable
libexpat1:i386 : Depends: libc6:i386 (>= 2.25) but it is not
installable libffi8ubuntu1:i386 : Depends: libc6:i386 (>= 2.7) but it
is not installable libgl1:i386 : Depends: libc6:i386 (>= 2.1.3) but
it is not installable libgl1-mesa-dri:i386 : Depends: libc6:i386 (>=
2.33) but it is not installable
Depends: libgcc-s1:i386 (>= 7) but it is not installable libglapi-mesa:i386 : Depends: libc6:i386 (>= 2.4) but it
is not installable libglvnd0:i386 : Depends: libc6:i386 (>= 2.4) but
it is not installable libglx-mesa0:i386 : Depends: libc6:i386 (>=
2.33) but it is not installable libglx0:i386 : Depends: libc6:i386 (>= 2.7) but it is not installable libgpg-error0:i386 : Depends:
libc6:i386 (>= 2.28) but it is not installable libllvm11:i386 :
Depends: libc6:i386 (>= 2.33) but it is not installable
Depends: libgcc-s1:i386 (>= 4.2) but it is not installable libmd0:i386 : Depends: libc6:i386 (>= 2.33) but it is not
installable libpciaccess0:i386 : Depends: libc6:i386 (>= 2.33) but it
is not installable libsensors5:i386 : Depends: libc6:i386 (>= 2.33)
but it is not installable libstdc++6:i386 : Depends: gcc-11-base:i386
(= 11-20210417-1ubuntu1) but it is not installable
Depends: libc6:i386 (>= 2.33) but it is not installable
Depends: libgcc-s1:i386 (>= 7) but it is not installable libtinfo6:i386 : Depends: libc6:i386 (>= 2.33) but it is
not installable libudev1:i386 : Depends: libc6:i386 (>= 2.33) but it
is not installable libvulkan1:i386 : Depends: libc6:i386 (>= 2.29)
but it is not installable
Recommends: mesa-vulkan-drivers:i386 but it is not installable or
vulkan-icd:i386 libx11-6:i386 : Depends: libc6:i386 (>= 2.33) but it is not installable libxau6:i386
: Depends: libc6:i386 (>= 2.33) but it is not installable
libxcb-dri2-0:i386 : Depends: libc6:i386 (>= 2.4) but it is not
installable libxcb-dri3-0:i386 : Depends: libc6:i386 (>= 2.4) but it
is not installable libxcb-glx0:i386 : Depends: libc6:i386 (>= 2.4)
but it is not installable libxcb-present0:i386 : Depends: libc6:i386
(>= 2.4) but it is not installable libxcb-shm0:i386 : Depends:
libc6:i386 (>= 2.4) but it is not installable libxcb-sync1:i386 :
Depends: libc6:i386 (>= 2.4) but it is not installable
libxcb-xfixes0:i386 : Depends: libc6:i386 (>= 2.4) but it is not
installable libxcb1:i386 : Depends: libc6:i386 (>= 2.28) but it is
not installable libxdmcp6:i386 : Depends: libc6:i386 (>= 2.4) but it
is not installable libxext6:i386 : Depends: libc6:i386 (>= 2.4) but
it is not installable libxfixes3:i386 : Depends: libc6:i386 (>= 2.4)
but it is not installable libxinerama1:i386 : Depends: libc6:i386 (>=
2.4) but it is not installable libxshmfence1:i386 : Depends: libc6:i386 (>= 2.27) but it is not installable libxxf86vm1:i386 :
Depends: libc6:i386 (>= 2.4) but it is not installable libzstd1:i386
: Depends: libc6:i386 (>= 2.4) but it is not installable steam:i386 :
Depends: curl:i386
Depends: libgcc-s1:i386 but it is not installable or
libgcc1:i386
Depends: libc6:i386 (>= 2.15) but it is not installable
Recommends: libasound2-plugins:i386 but it is not installable
Recommends: libxss1:i386 but it is not installable
Recommends: mesa-vulkan-drivers:i386 but it is not installable
Recommends: xdg-desktop-portal:i386
Recommends: xdg-desktop-portal-gtk:i386 or
xdg-desktop-portal-backend:i386
Recommends: xterm:i386 or
x-terminal-emulator:i386
Recommends: zenity:i386 zlib1g:i386 : Depends: libc6:i386 (>= 2.4) but it is not installable E: Unable to correct
problems, you have held broken packages.
答案1
您必须首先通过执行以下命令来修复损坏的存储库：
sudo add-apt-repository -r ppa:mc3man/xerus-media
sudo rm /etc/apt/sources.list.d/home\:strycore*.list
然后更新软件包列表并安装所有需要的升级
sudo apt-get update
sudo apt-get install -f
sudo dpkg --configure -a
sudo apt-get dist-upgrade