From 7cbf44e029dc94e9b9822281cabab8655ff7b9e5 Mon Sep 17 00:00:00 2001
From: "Gerd v. Egidy" <gerd@egidy.de>
Date: Wed, 19 Jan 2022 21:51:30 +0100
Subject: [PATCH 1/3] don't recompress, but just uncompress the kernel modules:
 mksquashfs will be better able to compress them

---
 build.sh | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/build.sh b/build.sh
index 16c53f1..d821401 100755
--- a/build.sh
+++ b/build.sh
@@ -225,10 +225,9 @@ make_customize_airootfs() {
     find ${work_dir}/${arch}/airootfs/usr/lib -type f -name "lib*.so.*" -exec strip --strip-all {} \;
 
     # recompress kernel modules to save space (#247)
-    echo "Recompressing kernel modules ..."
+    echo "Uncompressing kernel modules ..."
     kernelver=$(basename ${work_dir}/${arch}/airootfs/usr/lib/modules/*)
     find ${work_dir}/${arch}/airootfs/usr/lib/modules/${kernelver} -type f -name "*.ko.zst" -exec zstd -q -d --rm {} \;
-    find ${work_dir}/${arch}/airootfs/usr/lib/modules/${kernelver} -type f -name "*.ko" -exec xz {} \;
     depmod --all --basedir=${work_dir}/${arch}/airootfs/usr ${kernelver}
 }
 

From 4df6386059445b715c3668e8033dda9f61683a95 Mon Sep 17 00:00:00 2001
From: "Gerd v. Egidy" <gerd@egidy.de>
Date: Wed, 19 Jan 2022 21:52:41 +0100
Subject: [PATCH 2/3] delete unnecessary files (stray kernel image, unnecessary
 grub picture)

---
 airootfs/root/customize_airootfs.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/airootfs/root/customize_airootfs.sh b/airootfs/root/customize_airootfs.sh
index d9ecc53..2e6dd9a 100755
--- a/airootfs/root/customize_airootfs.sh
+++ b/airootfs/root/customize_airootfs.sh
@@ -64,6 +64,10 @@ rm -rf /usr/share/gir*
 rm -rf /usr/include
 rm -rf /usr/share/man/man3
 
+# save some more space by removing large & unnecessary files
+rm -f /lib/modules/*/vmlinuz
+rm -f /usr/share/grub/themes/starfield/starfield.png
+
 # Cleanup XFCE menu
 sed -i '2 i NoDisplay=true' /usr/share/applications/{xfce4-mail-reader,xfce4-web-browser}.desktop
 sed -i "s/^\(Categories=\).*\$/Categories=Utility;/" /usr/share/applications/{geany,*ristretto*,*GHex*}.desktop

From 56024247dc887e4e1facd406473c006bd1fc688f Mon Sep 17 00:00:00 2001
From: "Gerd v. Egidy" <gerd@egidy.de>
Date: Wed, 19 Jan 2022 22:50:50 +0100
Subject: [PATCH 3/3] improve compression of the initramfs image
 (sysresccd.img)

---
 mkinitcpio.conf | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mkinitcpio.conf b/mkinitcpio.conf
index c03540a..60c328e 100644
--- a/mkinitcpio.conf
+++ b/mkinitcpio.conf
@@ -2,3 +2,4 @@ MODULES=(fuse)
 BINARIES=(aq jq mount.ntfs)
 HOOKS=(base udev memdisk findroot archiso archiso_loop_mnt archiso_pxe_common archiso_pxe_nbd archiso_pxe_http archiso_pxe_nfs archiso_kms block mdadm_udev modconf encrypt lvm2 filesystems keyboard)
 COMPRESSION="xz"
+COMPRESSION_OPTIONS="--threads=0 --lzma2=preset=9e,dict=128MiB --verbose"