在尝试升级系统时，我不断收到一条消息，提示我需要释放根分区中的空间。情况如下：
Filesystem Size Used Avail Use% Mounted on
/dev/sda5 20G 16G 3.1G 84% /
对我来说，这似乎占用了很多空间，我不知道是什么。在这个问题，一个答案建议OP（除其他事项外）搜索填满磁盘的核心转储
find / -xdev -name core -ls -o -path "/lib*" -prune。
我进行了搜索并得出以下结果。删除这些文件夹以获得一些额外空间是否安全？也许仅从这个输出无法判断……
538670 4 drwxr-xr-x 3 root root 4096 Mar 29 17:14 /usr/share/maven-repo/org/eclipse/jdt/core
19809 4 drwxr-xr-x 2 root root 4096 Jan 18 16:07 /usr/share/mlt/core
1201400 4 drwxr-xr-x 11 root root 4096 Jul 25 2014 /usr/share/kivy-examples/tutorials/pong/.buildozer/android/platform/python-for-android/dist/myapp/python-install/lib/python2.7/site-packages/kivy/core
1204401 4 drwxr-xr-x 11 root root 4096 Jul 25 2014 /usr/share/kivy-examples/tutorials/pong/.buildozer/android/platform/python-for-android/dist/myapp/private/lib/python2.7/site-packages/kivy/core
181735 4 drwxr-sr-x 2 root staff 4096 Jul 20 2015 /usr/local/lib/python2.7/dist-packages/astroid/tests/testdata/python3/data/unicode_package/core
181828 4 drwxr-sr-x 2 root staff 4096 Jul 20 2015 /usr/local/lib/python2.7/dist-packages/astroid/tests/testdata/python2/data/unicode_package/core
992785 4 drwxr-sr-x 10 root staff 4096 Oct 23 2014 /usr/local/lib/python2.7/dist-packages/django/core
195891 4 drwxr-sr-x 11 root staff 4096 Feb 28 15:48 /usr/local/lib/python2.7/dist-packages/kivy/core
343499 4 drwxr-sr-x 2 root staff 4096 Sep 23 2015 /usr/local/lib/python2.7/dist-packages/pandas/core
179564 4 drwxr-sr-x 5 root staff 4096 Jun 17 2015 /usr/local/lib/python2.7/dist-packages/numpy/core
220980 4 drwxr-sr-x 5 root staff 4096 Jan 18 13:02 /usr/local/lib/python2.7/dist-packages/IPython/core
147573 4 drwxr-xr-x 12 root root 4096 Jun 12 2015 /usr/lib/python3/dist-packages/kivy/core
73494 4 drwxr-xr-x 6 root root 4096 Jan 18 16:33 /usr/lib/python3/dist-packages/numpy/core
8054 4 drwxr-xr-x 4 root root 4096 Jan 18 16:33 /usr/lib/python3/dist-packages/IPython/core
173879 4 drwxr-xr-x 4 root root 4096 Jan 18 16:30 /usr/lib/python2.7/dist-packages/wx-2.8-gtk2-unicode/wx/lib/pubsub/core
147017 4 drwxr-xr-x 4 root root 4096 Jan 18 16:24 /usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/lib/pubsub/core
556686 4 drwxr-xr-x 11 root root 4096 Jun 12 2015 /usr/lib/python2.7/dist-packages/kivy/core
179822 4 drwxr-xr-x 5 root root 4096 Jan 18 16:29 /usr/lib/python2.7/dist-packages/numpy/core
935953 4 drwxr-xr-x 3 root root 4096 Jan 18 16:28 /usr/lib/python2.7/dist-packages/IPython/core
832349 4 drwxr-xr-x 3 root root 4096 Apr 28 15:41 /usr/lib/jvm/java-8-oracle/lib/visualvm/visualvm/core
832360 4 drwxr-xr-x 3 root root 4096 Apr 28 15:41 /usr/lib/jvm/java-8-oracle/lib/visualvm/platform/core
98278 4 drwxr-xr-x 3 root root 4096 Mar 30 05:01 /usr/lib/vmware-installer/2.1.0/vmis/core
198496 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35-generic/include/config/mlx5/core
197817 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35-generic/include/config/serial/core
204636 4 drwxr-xr-x 3 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35-generic/include/config/core
196798 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/drivers/memstick/core
197048 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/drivers/usb/core
196392 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/drivers/net/ethernet/mellanox/mlx5/core
196980 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/drivers/video/fbdev/core
196604 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/drivers/gpu/drm/nouveau/nvkm/core
196550 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/drivers/mmc/core
196203 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/drivers/infiniband/core
107599 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/net/core
107625 4 drwxr-xr-x 2 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/sound/aoa/core
107795 4 drwxr-xr-x 4 root root 4096 Apr 5 14:16 /usr/src/linux-headers-4.2.0-35/sound/core
784287 29524 -rw------- 1 root root 38842368 Jan 31 2015 /etc/X11/core
答案1
答案2
增加系统分区而不是删除可能导致系统崩溃的未知文件怎么样？如果硬盘上有未分配空间等可用空间，请尝试将其合并到磁盘管理中的系统分区。如果其他分区中有可用空间，请缩小其中一个分区并将冗余空间添加到系统分区。