I see that you just added this check to the chromium ebuilds: if ! egrep -q '^shm.+/dev/shm' /etc/fstab; then ewarn "You don't have /dev/shm entry in /etc/fstab." ewarn "${PN} may fail to start in that configuration." ewarn "Please add the following line to your /etc/fstab:" ewarn "shm /dev/shm tmpfs nodev,nosuid,noexec 0 0" fi I want to point out that this fstab entry is unnecessary for users running openrc; /etc/init.d/devfs takes care of this. As well, the default fstab from baselayout-2 does not contain the /dev/shm entry. Perhaps this could be amended to check for baselayout-1 before warning the user?
I've just removed the check for simplicity. Thanks for the report.