--- a/initd/zram.c	2016-07-03 06:39:51.011999930 +0700
+++ b/initd/zram.c	2016-07-03 07:00:34.143492847 +0700
@@ -82,7 +82,7 @@
 int
 mount_zram_on_tmp(void)
 {
-	char *mkfs[] = { "/usr/sbin/mkfs.ext4", "-b", "4096", "-F", "-L", "TEMP", "-m", "0", "/dev/zram0", NULL };
+	char *mkfs[] = { "/sbin/mkfs.ext2", "-b", "4096", "-F", "-L", "TEMP", "-m", "0", "/dev/zram0", NULL };
 	FILE *fp;
 	long zramsize;
 	pid_t pid;
@@ -94,6 +95,14 @@
 	}
 
 	mkdev("*", 0600);
+	
+	fp = fopen("/sys/block/zram0/comp_algorithm", "r+");
+	if (fp == NULL) {
+		ERROR("Can't open /sys/block/zram0/comp_algorithm: %s\n", strerror(errno));
+		return errno;
+	}
+	fprintf(fp, "%s", "lz4" );
+	fclose(fp);
 
 	zramsize = proc_meminfo() / 2;
 	fp = fopen("/sys/block/zram0/disksize", "r+");
@@ -107,10 +116,10 @@
 	pid = fork();
 	if (!pid) {
 		execvp(mkfs[0], mkfs);
-		ERROR("Can't exec /sbin/mkfs.ext4\n");
+		ERROR("Can't exec /sbin/mkfs.ext2\n");
 		exit(-1);
 	} else if (pid <= 0) {
-		ERROR("Can't exec /sbin/mkfs.ext4\n");
+		ERROR("Can't exec /sbin/mkfs.ext2\n");
 		return -1;
 	} else {
 		waitpid(pid, NULL, 0);