我正在尝试通过 Cockpit 界面更新我的 Ubuntu 服务器，它显示以下内容：
The following packages have unmet dependencies:
libmailutils6: Depends: mailutils-common (= 1:3.7-2.1) but 1:3.14-1 is to be installed
qemu-system-x86: Breaks: qemu-kvm
libtss2-tcti-cmd0: Breaks: libtss2-esys0 (< 3.0.1-2) but 2.3.2-1ubuntu0.20.04.1 is to be installed
libtss2-tcti-device: Breaks: libtss2-esys0 (< 3.0.1-2) but 2.3.2-1ubuntu0.20.04.1 is to be installed
libtss2-tcti-swtpm0: Breaks: libtss2-esys0 (< 3.0.1-2) but 2.3.2-1ubuntu0.20.04.1 is to be installed
libtss2-mu0: Breaks: libtss2-esys0 (< 3.0.1-2) but 2.3.2-1ubuntu0.20.04.1 is to be installed
libgc1c2: Conflicts: libgcl but 1:8.0.6-1.1build1 is to be installed
fuse3: Breaks: fuse
libtss2-tcti-mssim: Breaks: libtss2-esys0 (< 3.0.1-2) but 2.3.2-1ubuntu0.20.04.1 is to be installed
libtss2-sys1: Breaks: libtss2-esys0 (< 3.0.1-2) but 2.3.2-1ubuntu0.20.04.1 is to be installed
libgc1: Conflicts: libgc1c2 but 1:7.6.4-0.4ubuntul is to be installed
libtss2-esys-3.0.2-0: Breaks: libtss2-esys0 (< 3.0.2-1) but 2.3.2-1ubuntu0.20.04.1 is to be installed
qemu-kvm: Depends: qemu-system-x86 (= 1:4.2-3ubuntu6.27) but 1:6.2+dfsg-2ubuntu6.12 is to be installed
这是不好的事情吗？我该如何修复这个问题才能获得干净的更新？
cat /etc/apt/sources.list 的结果
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://cz.archive.ubuntu.com/ubuntu jammy main restricted
# deb-src http://cz.archive.ubuntu.com/ubuntu focal main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://cz.archive.ubuntu.com/ubuntu jammy-updates main restricted
# deb-src http://cz.archive.ubuntu.com/ubuntu focal-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://cz.archive.ubuntu.com/ubuntu jammy universe
# deb-src http://cz.archive.ubuntu.com/ubuntu focal universe
deb http://cz.archive.ubuntu.com/ubuntu jammy-updates universe
# deb-src http://cz.archive.ubuntu.com/ubuntu focal-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://cz.archive.ubuntu.com/ubuntu jammy multiverse
# deb-src http://cz.archive.ubuntu.com/ubuntu focal multiverse
deb http://cz.archive.ubuntu.com/ubuntu jammy-updates multiverse
# deb-src http://cz.archive.ubuntu.com/ubuntu focal-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://cz.archive.ubuntu.com/ubuntu jammy-backports main restricted universe multiverse
# deb-src http://cz.archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
deb http://cz.archive.ubuntu.com/ubuntu jammy-security main restricted
# deb-src http://cz.archive.ubuntu.com/ubuntu focal-security main restricted
deb http://cz.archive.ubuntu.com/ubuntu jammy-security universe
# deb-src http://cz.archive.ubuntu.com/ubuntu focal-security universe
deb http://cz.archive.ubuntu.com/ubuntu jammy-security multiverse
# deb-src http://cz.archive.ubuntu.com/ubuntu focal-security multiverse
编辑于 2023 年 8 月 27 日，9:25 - 非常感谢你们。我运行了 sudo apt clean 和 sudo apt dist-upgrade，现在在我的驾驶舱界面上，我看到一切都已完成，并带有绿色标记。:) 非常感谢！
答案1
第一次运行：
sudo apt clean
sudo apt update
然后运行：
sudo apt dist-upgrade
看起来系统仍然缓存了系统 20.04 时的更新。运行sudo apt clean然后sudo apt update应该会刷新缓存。