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Description of problem:
After I create some files/folders under /mnt directory, I can't find them using locate command.

Version-Release number of selected component (if applicable):
# rpm -q mlocate
mlocate-0.26-5.el7.x86_64

How reproducible:
always

Steps to Reproduce:
1. create a file/folder under /mnt directory
# touch aaa/mkdir bbb
2. execute updatedb command
# updatedb
3. execute locate command to search the file/folder
# locate aaa/locate bbb

Actual results:
locate command can't search the file/folder

Expected results:
locate command can search the file/folder

Additional info:
1. The result is OK when mlocate version is as follows:
# rpm -q mlocate
mlocate-0.22.2-6.el6.x86_64
2. When I search some files/folders under some other directories(such as /root) using locate command(version:mlocate-0.26-5.el7.x86_64), the result is OK.

If you check your /etc/updatedb.conf file, you can find /mnt and /media in PRUNEPATHS variable - they are skipped intentionally. You can modify the .conf file, but generally it is not a good default. Closing NOTABUG, as this is not a regression, but expected behaviour of PRUNEPATHS variable.