[tyndur-devel] [PATCH 1 of 2 v3] build: dd if='/dev/zero' ... ist zu langsam

[Andreas Freimuth <m.nemo@xxxxxxx>]

* Beim Erstellen von leeren Images nicht Tausende Null-Bytes kopieren

Signed-off-by: Andreas Freimuth <m.nemo@xxxxxxx>
---
 build/scripts/image_cdrom  |  2 +-
 build/scripts/image_floppy |  2 +-
 build/scripts/image_hd     |  4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/build/scripts/image_cdrom b/build/scripts/image_cdrom
--- a/build/scripts/image_cdrom
+++ b/build/scripts/image_cdrom
@@ -96,7 +96,7 @@ EOF
 NEW=0
 if ! [ -f $FLOPPY_IMAGE_PATH ]; then
     # Leeres Image erstellen und formatieren
-    dd if=/dev/zero of=$FLOPPY_IMAGE_PATH bs=1024 count=1440
+    dd of=$FLOPPY_IMAGE_PATH bs=1024 seek=1440 count=0
     mformat l:
     NEW=1
 fi
diff --git a/build/scripts/image_floppy b/build/scripts/image_floppy
--- a/build/scripts/image_floppy
+++ b/build/scripts/image_floppy
@@ -58,7 +58,7 @@ EOF
 NEW=0
 if ! [ -f $IMAGE_PATH ]; then
     # Leeres Image erstellen und formatieren
-    dd if=/dev/zero of=$IMAGE_PATH bs=1024 count=1440
+    dd of=$IMAGE_PATH bs=1024 seek=1440 count=0
     mformat l:
     NEW=1
 fi
diff --git a/build/scripts/image_hd b/build/scripts/image_hd
--- a/build/scripts/image_hd
+++ b/build/scripts/image_hd
@@ -57,7 +57,7 @@ die()
 NEW=0
 if ! [ -f $IMAGE_PATH ]; then
     # Leeres Image erstellen und formatieren
-    dd if=/dev/zero of=$IMAGE_PATH bs=$((1024*1024)) count=$IMAGE_SIZE 2> /dev/null
+    dd of=$IMAGE_PATH bs=$((1024 * 1024)) seek=$IMAGE_SIZE count=0
     build/scripts/create_partition $IMAGE_PATH
     NEW=1
 fi
@@ -70,7 +70,7 @@ PART_SIZE=`echo $PARTITIONS | awk '{prin
 
 if [ $NEW -ne 0 ]; then
     PART_IMAGE=`mktemp`
-    dd if=$IMAGE_PATH of=$PART_IMAGE bs=512 skip=$PART_START count=$PART_SIZE
+    dd of=$PART_IMAGE bs=512 seek=$PART_SIZE count=0
 
     # Dateisystem erstellen
     $LOST_TOOLS_MKE2FS -F -q $PART_IMAGE || die "Dateisystem konnte nicht erstellt werden"