自从尝试升级到 16.04 xenial 以来，我得到了
$ apt
apt: relocation error: /usr/lib/x86_64-linux-gnu/libapt-pkg.so.5.0:
symbol _ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE7compareERKS4_,
version GLIBCXX_3.4.21 not defined in file libstdc++.so.6 with link time reference
简单地运行时apt。不用说，这使得做任何事情都变得困难。
任何提示？
我不知道是否有人可以帮助我解决 gcc-5-base 问题。自从我将 14.04 LTS 升级到 16.04 LTS 以来，我的软件包中存在未满足的依赖项。
The following packages have unmet dependencies:
libstdc++6 : Depends: gcc-5-base (= 5.4.0-6ubuntu1~16.04.2) but 5.4.1-2ubuntu1~14.04 is installed
libstdc++6:i386 : Depends: gcc-5-base:i386 (= 5.4.0-6ubuntu1~16.04.2) but it is not installed
Depends: libc6:i386 (>= 2.18) but it is not installed
Depends: libgcc1:i386 (>= 1:4.2) but it is not installed
E: Unmet dependencies. Try using -f.
我想问一下是否有办法将 5.4.1-2ubuntu1 回滚到 5.4.0-6ubuntu1。谢谢！
一切运行良好，我在启动/玩游戏时没有任何问题，但这让我感到不安。
$ sudo dmesg | grep -E '(drm)|(radeon)'
[ 3.337655] [drm] Initialized drm 1.1.0 20060810
[ 3.387697] [drm] radeon kernel modesetting enabled.
[ 3.397808] fb: switching to radeondrmfb from EFI VGA
[ 3.398209] [drm] initializing kernel modesetting (ARUBA 0x1002:0x9903 0x17AA:0x3804).
[ 3.398223] [drm] register mmio base: 0xF0300000
[ 3.398225] [drm] register mmio size: 262144
[ 3.398230] [drm] ACPI VFCT contains a BIOS for 00:01.0 1002:9903, size 19968
[ 3.398340] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 - 0x000000002FFFFFFF (768M used)
[ 3.398343] …