Changeset c0a0f25

Timestamp:

09/25/2022 07:30:30 AM (19 months ago)

Author:

Xi Ruoyao <xry111@…>

Branches:

xry111/arm64, xry111/arm64-12.0

Children:

8f641ee

Parents:

ef6e958

Message:

arm64: grub cfg: some improvements

• Ensure /boot/efi is created before mounting ESP.
• Delete already existing "LFS" boot entry in efivar.
• Umount /sys/firmware/efi/efivars after running efibootmgr (or it causing troubles in "umount /sys").
• Mention "-e 3" which is needed for some UEFI implementation.

File:

• chapter10/grub.xml (modified) (3 diffs)

chapter10/grub.xml

@@ -26 +26 @@
       BLFS, you should skip this page, and config GRUB with UEFI support
       using the instructions provided in
-      <ulink url="&blfs-book;postlfs/grub-setup.html">the BLFS page</ulink>.
+      <ulink url="&blfs-book;postlfs/grub-setup.html">the BLFS page</ulink>,
+      but replace <parameter>--target=x86_64-efi</parameter> with
+      <parameter>--target=arm64-efi</parameter> for the ARM64 system.
     </para>
     <para>
@@ -100 +102 @@
     mount it now:</para>
 
-<screen role="nodump"><userinput>mount /boot/efi</userinput></screen>
+<screen role="nodump"><userinput>mkdir -pv /boot/efi
+mount /boot/efi</userinput></screen>
 
     <note>
@@ -172 +175 @@
         <ulink url="&blfs-book;postlfs/efibootmgr.html">efibootmgr</ulink>,
         then run the following commands:
+
 <screen role="nodump"><userinput>mount -v -t efivarfs efivarfs /sys/firmware/efi/efivars
-efibootmgr -c -L LFS -l \EFI\BOOT\BOOTAA64.EFI -d /dev/sda</userinput></screen>
+efibootmgr -B -L LFS || true
+efibootmgr -c -L LFS -l \EFI\BOOT\BOOTAA64.EFI -d /dev/sda
+umount /sys/firmware/efi/efivars</userinput></screen>
+
         Replace <filename>/dev/sda</filename> with the device node of the
-        hard drive where you are installing GRUB into.
+        hard drive where you are installing GRUB into.  For some UEFI
+        firmwares, <option>-e 3</option> option may be needed for the
+        <command>efibootmgr -c</command> command.
       </para>
     </note>