摘要： /etc/default/grub里的秘密：# If you change this file, run 'update-grub' afterwards to update# /boot/grub/grub.cfg.GRUB_DEFAULT=0#GRUB_HIDDEN_TIMEOUT=0GRUB_HIDDEN_TIMEOUT_QUIET=trueGRUB_TIMEOUT=10GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`GRUB_CMDLINE_LINUX_DEFAULT="qu 阅读全文