建立 UEFI 開機

1. 將格式化完成的 /dev/sdc3 掛載於 /mnt/efi1。

   [root@dywmac images]# mkdir /mnt/efi1
   [root@dywmac images]# mount /dev/sdc3 /mnt/efi1
   

2. 將 BOOTX64.conf 及 BOOTX64.efi 複製到 /dev/sdc3 的相對目錄中。

   [root@dywmac images]# mkdir -p /mnt/efi1/EFI/BOOT/
   [root@dywmac images]# cp /mnt/efi/EFI/BOOT/BOOTX64.* /mnt/efi1/EFI/BOOT/
   

3. BOOTX64.conf 以 BISO 開機選單檔 grub.conf 覆蓋。

   [root@dywmac images]# cp /mnt/boot/grub/grub.conf /mnt/efi1/EFI/BOOT/BOOTX64.conf 
   [root@dywmac images]# cat /mnt/efi1/EFI/BOOT/BOOTX64.conf 
   default=0
   timeout 5
   hiddenmenu
   splashimage=(hd0,0)/grub/splash.xpm.gz
   title Red Hat Linux (4.8.12-1.el6.elrepo.x86_64)
   	root (hd0,0)
   	kernel /vmlinuz-4.8.12-1.el6.elrepo.x86_64 ro root=/dev/mapper/vg_crt-root 
   rd_LVM_LV=vg_crt/root rd_LVM_LV=vg_crt/swap rd_NO_LUKS rd_NO_MD rd_NO_DM 
   LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us 
   crashkernel=auto scsi_mod.scan=async rhgb quiet
   	initrd /initramfs-4.8.12-1.el6.elrepo.x86_64.img
   title CRT DYW_Linux (2.6.32-573.el6.x86_64)
   	root (hd0,0)
   	kernel /vmlinuz-2.6.32-573.el6.x86_64 ro root=/dev/mapper/vg_crt-root 
   rd_LVM_LV=vg_crt/root rd_LVM_LV=vg_crt/swap rd_NO_LUKS rd_NO_MD rd_NO_DM 
   LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us 
   crashkernel=auto rhgb quiet
   	initrd /initramfs-2.6.32-573.el6.x86_64.img