Unable to create '/media/sf_nginx/H2_20151103/H2/.git/index.lock': File exists.

今天不知怎么回事，git 突然不能add修改文件，错误信息如下，但是很奇怪的是git status 没有问题，依然正常工作

[root@test01 test_code_driver]# git add test_prefix.h

fatal: Unable to create '/media/sf_nginx/H2_20151103/H2/.git/index.lock': File exists.

If no other git process is currently running, this probably means a

git process crashed in this repository earlier. Make sure no other git

process is running and remove the file manually to continue.

在网上查看了相关解决方案，于是在本地仓库.git文件夹下面，删除index.lock

drwxrwxrwx 1 root root 0 Nov 3 16:57 branches

-rwxrwxrwx 1 root root 30 Nov 18 17:50 COMMIT_EDITMSG

-rwxrwxrwx 1 root root 503 Nov 9 11:23 config

-rwxrwxrwx 1 root root 73 Nov 3 16:57 description

-rwxrwxrwx 1 root root 13762 Nov 19 13:56 FETCH_HEAD

-rwxrwxrwx 1 root root 48 Nov 9 14:32 HEAD

drwxrwxrwx 1 root root 4096 Nov 3 16:57 hooks

-rwxrwxrwx 1 root root 325171 Nov 18 17:50 index

-rwxrwxrwx 1 root root 0 Nov 18 18:04 index.lock

drwxrwxrwx 1 root root 0 Nov 3 16:57 info

drwxrwxrwx 1 root root 0 Nov 3 16:57 logs

drwxrwxrwx 1 root root 0 Nov 5 17:30 modules

drwxrwxrwx 1 root root 40960 Nov 16 18:10 objects

-rwxrwxrwx 1 root root 41 Nov 9 11:23 ORIG_HEAD

-rwxrwxrwx 1 root root 9374 Nov 3 16:57 packed-refs

drwxrwxrwx 1 root root 0 Nov 9 10:23 refs

-rwxrwxrwx 1 root root 805 Nov 19 2015 sourcetreeconfig

[root@test01 .git]# rm -f index.lock

问题解决，git可以正常工作

具体原因有时间再看