我有 Ubuntu Focal Fossa。
我无法安装 Unetbootin 并像过去一样使用它。
这就是我尝试过：
sudo add-apt-repository ppa:gezakovacs/ppa
sudo apt-get update
当我尝试时：sudo apt-get install unetbootin
有时候是这样的：
sudo apt-get install unetbootin
Reading package lists... Done
Building dependency tree
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:
unetbootin : Depends: libgcc-s1 (>= 3.0) but it is not installable
Depends: libqt4-network (>= 4:4.5.3) but it is not going to be installed
Depends: libqtcore4 (>= 4:4.7.0~beta1) but it is not going to be installed
Depends: libqtgui4 (>= 4:4.5.3) but it is not going to be installed
Recommends: extlinux but it is not going to be installed
Recommends: unetbootin-translations but it is not going to be installed
Recommends: gksu but it is not installable or
kdesudo but it is not installable
E: Unable to correct problems, you have held broken packages.
也没有人持有包裹
我试过了dpkg --get-selections | grep hold，没有被保留的包。在这种情况下，输出显示有包无法安装（？）。
如果我尝试使用 UI，我会收到另一个错误：
