我正在尝试对Windows 64位（ubuntu 14.04）使用正式的bash。问题是，当我尝试更新任何软件包或安装新软件包（例如g ++等）时，我总是遇到相同的错误：
root@notebook:~# sudo apt-get install g++
Reading package lists... Done
Building dependency tree
Reading state information... Done
g++ is already the newest version (4:5.3.1-1ubuntu1).
0 to upgrade, 0 to newly install, 0 to remove and 2 not to upgrade.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Y
Setting up qemu-user-binfmt (1:2.5+dfsg-5ubuntu10.41) ...
update-binfmts: warning: unable to close /proc/sys/fs/binfmt_misc/register: Invalid argument
update-binfmts: warning: unable to enable binary format qemu-aarch64
update-binfmts: exiting due to previous errors
dpkg: error processing package qemu-user-binfmt (--configure):
subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
qemu-user-binfmt
E: Sub-process /usr/bin/dpkg returned an error code (1)
软件包qemu-user-binfmt的错误脚本。
首先您需要尝试cmd：
apt-get purge qemu-user-binfmt
如果问题仍未解决，则需要删除dir / var / lib / dpkg / info /中的文件：
qemu-user-binfmt.pre*
qemu-user-binfmt.post*
并运行
apt-get remove qemu-user-binfmt