There's already a function to do this. Take a look at iutil.notify_kernel and perhaps some of the usage of it.
----- Original Message -----
From: "Jesse Keating" <jkeating@xxxxxxxxxx>
To: anaconda-devel-list@xxxxxxxxxx
Cc: "Jesse Keating" <jkeating@xxxxxxxxxx>
Sent: Tuesday, April 24, 2012 5:57:32 PM
Subject: [PATCH] Make sure DASD info is available (#729910)
This is a bit heavy handed, but is safer than a kernel change at this
point.
Resolves: rhbz#729910
---
storage/dasd.py | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/storage/dasd.py b/storage/dasd.py
index 2b95b19..3bec53e 100644
--- a/storage/dasd.py
+++ b/storage/dasd.py
@@ -78,6 +78,13 @@ class DASD:
statusfile = "/sys/block/%s/device/status" % (device,)
if not os.path.isfile(statusfile):
continue
+ else:
+ # This works around what I believe to be a kernel bug and
+ # forces udev to notice all the information about these
+ # devices (#729910)
+ f = open("/sys/block/%s/uevent" % (device,), 'w')
+ f.write("change")
+ f.close()
f = open(statusfile, "r")
status = f.read().strip()
--
1.7.7.6
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