Re: [PR PATCH] [Updated] refind: account for btrfs setups when generating manual stanzas

[slymattz <slymattz@users.noreply.github.com>]

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There is an updated pull request by slymattz against master on the void-packages repository

https://github.com/slymattz/void-packages refind
https://github.com/void-linux/void-packages/pull/48906

refind: account for btrfs setups when generating manual stanzas
<!-- Uncomment relevant sections and delete options which are not applicable -->

#### Testing the changes
- I tested the changes in this PR: **briefly**

#### Local build testing
I built this PR locally for my native architecture, x86_64-glibc as well as for aarch64-glibc [EDIT: Feb 26 09:34:52 PM CET 2024].

#### My setup
/etc/default/refind-kernel-hook.conf
```
#!/bin/sh

# Change this line to 1 to update refind conf whenever new kernel is installed
UPDATE_REFIND_CONF=1

# refind.conf location
# It usually stays in
#
# /boot/EFI/refind/refind.conf
#       if you use all default configuration and EFI partition mounted to /boot
# /boot/efi/EFI/refind/refind.conf
#       if using default configuration and EFI partition mounted to /boot/efi
# /boot/EFI/BOOT/refind.conf
#       if you run refind-install --usedefault and EFI partition mounted to /boot
# /boot/efi/EFI/BOOT/refind.conf
#       likewise, EFI mounted to /boot/efi
# /efi/EFI/refind/refind.conf
# /efi/EFI/BOOT/refind.conf
REFIND_CONF=/boot/efi/EFI/refind/refind.conf

# addition kernel cmdline
OPTIONS="root=UUID=a9ee6e45-d348-4214-9560-0d0c73ab8077 ro rootflags=subvol=void/ROOT quiet loglevel=4 mem_sleep_default=deep i915.modeset=1 video=1920x1080"
```
/boot/efi/EFI/refind/refind.conf
```
timeout 5
use_nvram false
scanfor internal,optical,manual
also_scan_dirs void/ROOT/boot
dont_scan_volumes FIRE1TB-EFI,FIRE1TB-tank,KC1TB-EFI,KC2TB-EFI,KC2TB-tank,WD1TB-EFI,WD1TB-tank
resolution 1920 1080
```
_scanfor internal_ works as it takes _also_scan_dirs_ as a prefix to where to find _vmlinuz_ and _initramfs_ files.

However, manual stanzas generated by _/etc/kernel.d/post-install/50-refind_ hook get me nowhere near bootable entries.

The patch that I came up with may not be perfect but it works on my installation.

Further testing is needed, especially for people with EFI mounted at /boot and using filesystems other than btrfs. 

To test the changes one needs to run xbps-reconfigure -f linux6.6 or whichever kernel one's running (also make sure to adjust the settings in _/etc/default/refind-kernel-hook.conf_)


A patch file from https://github.com/void-linux/void-packages/pull/48906.patch is attached

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From 11c917a0a353e4dfde7d940ef4fcdebca1be900f Mon Sep 17 00:00:00 2001
From: Mateusz Sylwestrzak <slymattz@gmail.com>
Date: Sat, 24 Feb 2024 01:53:23 +0100
Subject: [PATCH 1/2] refind: add BOOT_PREFIX and LABEL for misc setups

---
 srcpkgs/refind/files/kernel.post-install     | 11 +++++++----
 srcpkgs/refind/files/refind-kernel-hook.conf |  8 +++++++-
 srcpkgs/refind/template                      |  3 +--
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/srcpkgs/refind/files/kernel.post-install b/srcpkgs/refind/files/kernel.post-install
index fd18f9c45ffe07..0a31aa747fe563 100755
--- a/srcpkgs/refind/files/kernel.post-install
+++ b/srcpkgs/refind/files/kernel.post-install
@@ -20,14 +20,17 @@ touch "$REFIND_CONF"
 
 tmpfile=$(mktemp /tmp/refind.XXXXXXX)
 
+: ${REFIND_LABEL:="Void Linux"}
+: ${REFIND_BOOT_PREFIX:=""}
+
 zversion=$(echo "$VERSION" | sed 's/[.]/[.]/g')
 
 zentry=$(cat <<EOF
 menuentry "Void Linux $VERSION" {
-	volume   "Void Linux"
-	loader   /vmlinuz-$VERSION
-	initrd   /initramfs-$VERSION.img
-	options  "$OPTIONS"
+        volume   "$REFIND_LABEL"
+        loader   $REFIND_BOOT_PREFIX/vmlinuz-$VERSION
+        initrd   $REFIND_BOOT_PREFIX/initramfs-$VERSION.img
+        options  "$OPTIONS"
 }
 EOF
 )
diff --git a/srcpkgs/refind/files/refind-kernel-hook.conf b/srcpkgs/refind/files/refind-kernel-hook.conf
index 5c48e89ebedad3..61b7ae64284a8a 100644
--- a/srcpkgs/refind/files/refind-kernel-hook.conf
+++ b/srcpkgs/refind/files/refind-kernel-hook.conf
@@ -18,5 +18,11 @@ UPDATE_REFIND_CONF=0
 # /efi/EFI/BOOT/refind.conf
 REFIND_CONF=/boot/EFI/refind/refind.conf
 
-# addition kernel cmdline
+# Set the label of the Void Linux filesystem
+REFIND_LABEL="Void Linux"
+
+# Set the path pointing to where rEFInd should look for vmlinuz and initramfs files, e.g. /boot
+REFIND_BOOT_PREFIX=""
+
+# Additional kernel cmdline parameters
 OPTIONS="quiet loglevel=4"
diff --git a/srcpkgs/refind/template b/srcpkgs/refind/template
index 94eda5ffc19543..54725bff299a9e 100644
--- a/srcpkgs/refind/template
+++ b/srcpkgs/refind/template
@@ -1,7 +1,7 @@
 # Template file for 'refind'
 pkgname=refind
 version=0.14.0.2
-revision=2
+revision=3
 archs="x86_64* i686* aarch64*"
 makedepends="gnu-efi-libs"
 depends="bash dosfstools efibootmgr"
@@ -73,7 +73,6 @@ do_install() {
 	vinstall gptsync/gptsync_${_EFI_ARCH}.efi 644 \
 		usr/share/refind/tools_${_EFI_ARCH}/
 
-
 	vinstall "${FILESDIR}/refind-kernel-hook.conf" 644 etc/default
 	vinstall ${FILESDIR}/kernel.post-install 744 \
 		etc/kernel.d/post-install 50-refind

From af18344517fe4da3708596b94b5081bb6b970e5c Mon Sep 17 00:00:00 2001
From: Mateusz Sylwestrzak <slymattz@gmail.com>
Date: Fri, 8 Mar 2024 17:36:04 +0100
Subject: [PATCH 2/2] refind: fix binutils 2.38+ for aarch64

---
 ...ile-support-and-fix-binutils-aarch64.patch | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 srcpkgs/refind/patches/add-cross-compile-support-and-fix-binutils-aarch64.patch

diff --git a/srcpkgs/refind/patches/add-cross-compile-support-and-fix-binutils-aarch64.patch b/srcpkgs/refind/patches/add-cross-compile-support-and-fix-binutils-aarch64.patch
new file mode 100644
index 00000000000000..58bf38b85cbd03
--- /dev/null
+++ b/srcpkgs/refind/patches/add-cross-compile-support-and-fix-binutils-aarch64.patch
@@ -0,0 +1,44 @@
+--- a/Make.common
++++ b/Make.common
+@@ -40,21 +40,13 @@
+ # Note: TIANOBASE is defined in master Makefile and exported
+ GENFW           = $(TIANOBASE)/BaseTools/Source/C/bin/GenFw
+ prefix          = /usr/bin/
+-ifeq ($(ARCH),aarch64)
+-  CC            = $(prefix)aarch64-linux-gnu-gcc
+-  AS            = $(prefix)aarch64-linux-gnu-as
+-  LD            = $(prefix)aarch64-linux-gnu-ld
+-  AR            = $(prefix)aarch64-linux-gnu-ar
+-  RANLIB        = $(prefix)aarch64-linux-gnu-ranlib
+-  OBJCOPY       = $(prefix)aarch64-linux-gnu-objcopy
+-else
+-  CC            = $(prefix)gcc
+-  AS            = $(prefix)as
+-  LD            = $(prefix)ld
+-  AR            = $(prefix)ar
+-  RANLIB        = $(prefix)ranlib
+-  OBJCOPY       = $(prefix)objcopy
+-endif
++
++CC            = $(prefix)$(CROSS_COMPILE)gcc
++AS            = $(prefix)$(CROSS_COMPILE)as
++LD            = $(prefix)$(CROSS_COMPILE)ld
++AR            = $(prefix)$(CROSS_COMPILE)ar
++RANLIB        = $(prefix)$(CROSS_COMPILE)ranlib
++OBJCOPY       = $(prefix)$(CROSS_COMPILE)objcopy
+ 
+ ifeq ($(MAKEWITH),TIANO)
+ # Below file defines TARGET (RELEASE or DEBUG) and TOOL_CHAIN_TAG (GCC44, GCC45, GCC46, or GCC47)
+@@ -148,8 +140,10 @@
+ 
+ ifeq ($(ARCH), aarch64)
+   GNUEFI_CFLAGS += -DEFIAARCH64
+-  FORMAT          = -O binary
+-  FORMAT_DRIVER   = -O binary
++  ifneq ($(OBJCOPY_LT_2_38),)
++    FORMAT = -O binary
++    FORMAT_DRIVER = -O binary
++  endif
+   SUBSYSTEM_LDFLAG = -defsym=EFI_SUBSYSTEM=0xa
+   LDFLAGS         += --warn-common --no-undefined --fatal-warnings
+