刚才看到有升级，然后升级的时候桌面卡死了。

重启无正常法进入系统，root进入后，看到efi无法挂载，提示：iso8859-1 not found，手动挂载，也是这个错。

然后幸好5.10内核还在，能进去。

一切正常，就是好像nvidia报错了。如下：

rhett@rhett-PC:~/Desktop$ sudo dkms status -m nvidia -v current-470.63.01 -k 5.14.10-amd64-desktop 
nvidia, current-470.63.01, 5.14.10-amd64-desktop, x86_64: installed (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!) (WARNING! Diff between built and installed module!)
rhett@rhett-PC:~/Desktop$ sudo dkms build -m nvidia -v current-470.63.01 -k 5.14.10-amd64-desktop 
Module nvidia/current-470.63.01 already built for kernel 5.14.10-amd64-desktop/4
rhett@rhett-PC:~/Desktop$ sudo dkms install -m nvidia -v current-470.63.01 -k 5.14.10-amd64-desktop 
Module nvidia/current-470.63.01 already installed on kernel 5.14.10-amd64-desktop/x86_64
rhett@rhett-PC:~/Desktop$