Yellow Dog Linux Bugfix Announcement
------------------------------------

Package:	yaboot/ybin	
Issue Date: 	August 09, 2001
Priority:	high		
Advisory ID: 	YDU-20010809-1


1. 	Topic:

	Updated yaboot packages are available.
	which fix a harmful problem.  New ybin
	packages are also available


2. 	Problem:

	All versions of yaboot older then 1.2.3 could
	cause issues with the Linux kernel's memory
	mapping functionality.  Users of yaboot are
	urged to upgrade to 1.2.3 immediately.

	Updated ybin packages are also available via
	this advisory.  While ybin is not the cause
	of the above problem, we do recommend the use
	of ybin 1.2.4 as it fixes bugs and adds useful
	features not found in YDL 2's shipping version.
	Please see the ybin man page for information
	on what has changed.


3. 	Solution:

   	a) Updating via yup...
   	We suggest that you use the Yellow Dog Update Program (yup)
   	to keep your system up-to-date. The following command(s) will
   	automatically retrieve and install the fixed version of
   	this update onto your system:

   		yup update yaboot
		yup update ybin

   	b) Updating manually...
   	The update can also be retrieved manually from our ftp site
   	below along with the rpm command that should be used to install
   	the update.  (Please use a mirror site)

   		ftp://ftp.yellowdoglinux.com/pub/yellowdog/updates/yellowdog-2.0/ppc/RPMS/
                rpm -Fvh yaboot-1.2.3-1.ppc.rpm
		rpm -Fvh ybin-1.2.4-2.ppc.rpm


	IMPORTANT NOTE:
	Please be sure to re-run /usr/sbin/ybin
	in order for the new yaboot to be copied
	to your bootloader partition properly


4. Verification

MD5 checksum			  Package
--------------------------------  ----------------------------
6ff946a44ef579d5ff3ac3827a0a5897  SRPMS/yaboot-1.2.3-1.src.rpm
8b70cfdaa6184a58a6c658fe80271c3a  SRPMS/ybin-1.2.4-2.src.rpm
2555d77c71a9c4b9cb41e5e0e4a58542  ppc/RPMS/yaboot-1.2.3-1.ppc.rpm
8322d58efddfb4cd74c7d722d514c7bd  ppc/RPMS/ybin-1.2.4-2.ppc.rpm

If you wish to verify that each package has not been corrupted or tampered with,
examine the md5sum with the following command: rpm --checksig --nogpg filename


5. Misc.

Terra Soft has setup a moderated mailing list where these security, bugfix, and package
enhancement announcements will be posted. See http://lists.yellowdoglinux.com/ for more
information.

For information regarding the usage of yup, the Yellow Dog Update Program, see 
http://http://www.yellowdoglinux.com/support/solutions/ydl_general/yup.shtml