There already are such checks in udev ... This looks far more like a syntax error in the /init shell script in the initramfs!
** Changed in: udev (Ubuntu) Sourcepackagename: udev => initramfs-tools -- Kernel panic after "Initializing /dev" during startup after "/init: 76: Syntax error" https://launchpad.net/bugs/74009 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs