I wanted to figure out why, after a etckeeper commit, I had a problem with rebooting (already solved thanks to this great thing).
I played with etckeeper, did
git checkout some_commit_sha for a quick look and then
git checkout master.
And it seems my file permissions in
/etc were broken after those manipulations. All files including
ssh_host_rsa_key passwd-, shadow- were
rw-r--r--. I didn't know Git does not save file permissions.
Now I fixed all of them (I hope I didn't miss anything).
What was the right way to get earlier states of
/etc, look around, and go back to the master with the right file permissions?