Linux Kernel Module Cheat

23.3.1. gem5 disk persistency

TODO how to make gem5 disk writes persistent?

As of cadb92f2df916dbb47f428fd1ec4932a2e1f0f48 there are some read_only entries in the gem5 config.ini under cow sections, but hacking them to true did not work:

diff --git a/configs/common/FSConfig.py b/configs/common/FSConfig.py
index 17498c42b..76b8b351d 100644
--- a/configs/common/FSConfig.py
+++ b/configs/common/FSConfig.py
@@ -60,7 +60,7 @@ os_types = { 'alpha' : [ 'linux' ],
            }

 class CowIdeDisk(IdeDisk):
-    image = CowDiskImage(child=RawDiskImage(read_only=True),
+    image = CowDiskImage(child=RawDiskImage(read_only=False),
                          read_only=False)

     def childImage(self, ci):

The directory of interest is src/dev/storage.