install: boards: Use sed over truncate to add cgroups

Truncate can remove characters of files that does not have a line break Sed can add the text on the first line without problems Signed-off-by: Patrick José Pereira <[email protected]>
ericjohnson97 · Dec 8, 2022 · ffa3bca · ffa3bca
1 parent 12e21b7
commit ffa3bca
Show file tree

Hide file tree

Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/install/boards/bcm_27xx.sh b/install/boards/bcm_27xx.sh
@@ -70,8 +70,8 @@ sudo sed -e 's/console=serial[0-9],[0-9]*\ //' -i $CMDLINE_FILE
 # Set cgroup, necessary for docker access to memory information
 echo "- Enable cgroup with memory and cpu"
 grep -q cgroup $CMDLINE_FILE || (
-    truncate --size -1 $CMDLINE_FILE
-    echo " cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory" >> $CMDLINE_FILE
+    # Append cgroups on the first line
+    sed -i '1 s/$/ cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory/' $CMDLINE_FILE
 )
 
 # Update raspberry pi firmware

diff --git a/install/boards/bcm_28xx.sh b/install/boards/bcm_28xx.sh
@@ -35,6 +35,6 @@ sudo sed -e 's/console=serial[0-9],[0-9]*\ //' -i $CMDLINE_FILE
 # Set cgroup, necessary for docker access to memory information
 echo "- Enable cgroup with memory and cpu"
 grep -q cgroup $CMDLINE_FILE || (
-    truncate --size -1 $CMDLINE_FILE
-    echo " cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory" >> $CMDLINE_FILE
+    # Append cgroups on the first line
+    sed -i '1 s/$/ cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory/' $CMDLINE_FILE
 )