New install, open_basedir, File(/)

Should WP ever attempt to access Files in /, rather than in the blog root or site root?

No plugins or themes are installed beyond the default installation. No code modifications.

Have WordPress address (URL) set as https://www.mydomain.com/wordpress3
and Site address (URL) set as https://www.mydomain.com/blog3

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Warning: is_writable() [function.is-writable]: open_basedir restriction in effect. File(/) is not within the allowed path(s): ('.:/proc/uptime:/tmp:/home:/usr/local/lib/php:/usr/home:/usr/local/bin/') in /home/username/public_html/wordpress3/wp-admin/options-permalink.php on line 137

Warning: is_writable() [function.is-writable]: open_basedir restriction in effect. File(/) is not within the allowed path(s): ('.:/proc/uptime:/tmp:/home:/usr/local/lib/php:/usr/home:/usr/local/bin/') in /home/username/public_html/wordpress3/wp-admin/includes/misc.php on line 133