1 files changed, 14 insertions, 0 deletions
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index fe9acb0..887629e 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -120,6 +120,20 @@ identify_ramdisk_image(int fd, int start_block, decompress_fn *decompressor)
 	}
 
 	/*
+	 * Read 512 bytes further to check if cramfs is padded
+	 */
+	sys_lseek(fd, start_block * BLOCK_SIZE + 0x200, 0);
+	sys_read(fd, buf, size);
+
+	if (cramfsb->magic == CRAMFS_MAGIC) {
+		printk(KERN_NOTICE
+		       "RAMDISK: cramfs filesystem found at block %d\n",
+		       start_block);
+		nblocks = (cramfsb->size + BLOCK_SIZE - 1) >> BLOCK_SIZE_BITS;
+		goto done;
+	}
+
+	/*
 	 * Read block 1 to test for minix and ext2 superblock
 	 */
 	sys_lseek(fd, (start_block+1) * BLOCK_SIZE, 0);