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- Log -----------------------------------------------------------------
commit 5fd54721c2275def506ac54cc2e4e810f57fa491
Author: Michael Tremer <michael.tremer(a)ipfire.org>
Date:   Tue Oct 17 15:23:26 2017 +0100

    Use best XZ compression for smaller images and packages
    
    Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>

commit c061d66fca5e252dab8fa2e5be5c684faeec75e0
Author: Michael Tremer <michael.tremer(a)ipfire.org>
Date:   Tue Oct 17 14:58:52 2017 +0100

    cdrom: Change format to XZ and compress in parallel
    
    This allows us to use all processor cores to compress
    the image faster.
    
    Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>

commit bc9544929c61080e662d8668d5ea0b833965fdd9
Author: Michael Tremer <michael.tremer(a)ipfire.org>
Date:   Tue Oct 17 14:58:28 2017 +0100

    packages: Compress in parallel
    
    Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>

-----------------------------------------------------------------------

Summary of changes:
 lfs/Config           | 2 +-
 lfs/cdrom            | 5 ++++-
 lfs/flash-images     | 2 +-
 src/installer/main.c | 2 +-
 4 files changed, 7 insertions(+), 4 deletions(-)

Difference in files:
diff --git a/lfs/Config b/lfs/Config
index b961db9..d2ac8e4 100644
--- a/lfs/Config
+++ b/lfs/Config
@@ -204,7 +204,7 @@ define PAK
 	tar xf /install/packages/package/files.tmp -C /install/packages/package/tmp/ \
 		-p --numeric-owner
 	rm -f /install/packages/package/files.tmp
-	cd /install/packages/package/tmp/ && tar -c -p --numeric-owner -J -f /install/packages/package/files.tar.xz * 		
+	cd /install/packages/package/tmp/ && XZ_OPT="-T0 --best" tar -c -p --numeric-owner -J -f /install/packages/package/files.tar.xz *
 	rm -r /install/packages/package/tmp
 	-cat /install/packages/package/ROOTFILES | grep -v "#" > /install/packages/package/ROOTFILES.tmp
 	mv /install/packages/package/ROOTFILES.tmp /install/packages/package/ROOTFILES
diff --git a/lfs/cdrom b/lfs/cdrom
index 58e754f..2f15103 100644
--- a/lfs/cdrom
+++ b/lfs/cdrom
@@ -32,9 +32,12 @@ TARGET     = $(DIR_INFO)/$(THISAPP)
 ifeq "$(BUILD_PLATFORM)" "arm"
 	TAR_OPTIONS =
 else
-	TAR_OPTIONS = --lzma
+	TAR_OPTIONS = --xz
 endif
 
+# Enable multi-threaded compression for LZMA
+export XZ_OPT = --threads=0 --best
+
 ###############################################################################
 # Top-level Rules
 ###############################################################################
diff --git a/lfs/flash-images b/lfs/flash-images
index 8ed7f63..a75d711 100644
--- a/lfs/flash-images
+++ b/lfs/flash-images
@@ -137,7 +137,7 @@ endif
 
 	# Install IPFire
 ifneq "$(BUILD_PLATFORM)" "arm"
-	tar -x --lzma -C $(MNThdd)/ -f /install/cdrom/distro.img
+	tar -x --xz -C $(MNThdd)/ -f /install/cdrom/distro.img
 else
 	tar -x -C $(MNThdd)/ -f /install/cdrom/distro.img
 endif
diff --git a/src/installer/main.c b/src/installer/main.c
index e9517e2..a364255 100644
--- a/src/installer/main.c
+++ b/src/installer/main.c
@@ -778,7 +778,7 @@ int main(int argc, char *argv[]) {
 
 	// Extract files...
 	snprintf(commandstring, STRING_SIZE,
-		"/bin/tar -C /harddisk  -xvf /cdrom/distro.img --lzma 2>/dev/null");
+		"/bin/tar -C /harddisk -xvf /cdrom/distro.img --xz 2>/dev/null");
 
 	if (runcommandwithprogress(60, 4, title, commandstring, INST_FILECOUNT,
 			_("Installing the system..."), logfile)) {


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