One, maybe. While the update is in process, you will note multiple restarts. In each case, until after the "Boot Install from..." volume has disappeared, that particular volume must be selected as the boot volume. I have seen cases where even though the "Boot Install from..." volume is still present, for some reason the target volume is chosen as the boot source. When that happens, I manually re-select the "Boot Install from..." while Clover is still up.Any ideas?