Hello, emerge-webrsync use GENTOO_MIRRORS in order to fetch the snapshot. This is great! But in a configuration where there is no conactivity to the internet, setting GENTOO_MIRRORS for portage is incorrect, as ebuilds may specify RESTRICT="mirror" and similar to bypass the GENTOO_MIRRORS. The /etc/portage/mirrors::local was introduced to solve the above issue, so in these configurations the system has correct value for /etc/portage/mirrors::local and an empty GENTOO_MIRRORS. As emerge-webrsync is portage tool, it is expected it follow the same rule. From "man portage" /etc/portage/mirrors: You may also set a special mirror type called "local". This list of mirrors will be checked before GENTOO_MIRRORS and will be used even if the package has RESTRICT="mirror" or RESTRICT="fetch". Consistent behavior between tools (DISTDIR usage bug#220111, persistence KEYWORDS&USE usage bug#219369, Mirror look up this one) is important for predictable usage. The following statement can be added to the for loop just before GENTOO_MIRRORS: $([ -e "${ROOT}/etc/portage/mirrors" ] && \ sed -n -e 's/#.*//' -e 's/^[\t]*//g' -e '/local/s/local[\t]*//p' \ "${ROOT}/etc/portage/mirrors") Thank you.