# Effects of using mock to rebuild packages on Centos 6.4

Currently I have rebuild ossec on centos 6.4 using mock. Will this have any effect on the stability of the os and also with regards to any other updates on the system? Any chance to cause crashes?

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If you only rebuild without updating on the system there would be any effect –  ALex_hha Aug 2 '13 at 10:15
@Yes I rebuild and install on the system. My worry on the stability ? –  biz14 Aug 2 '13 at 14:01

mock builds packages in a dedicated chroot environment. It does not make any changes to your live system. mock only creates files within the /var/lib/mock and /var/cache/mock directories.