> 1) force-install a 64-bit kernel, 64 bit glibc, and 64 bit init. I'm pretty > sure that the 32 bit mkinitrd will barf when it tries to assemble an initrd > for the 64 bit kernel. You'll have to unpack your current mkinitrd, look > inside, enumerate all the modules that it loads, than manually build an > equivalent 64 bit initrd, with the analogous kernel modules. Cross your > fingers, and attempt to boot the new kernel into single user mode. Not how I would do it - start with a complete backup, test the backup and then boot a 64bit rescue cd image. Some of the updates you need to do will require a 64bit kernel is actually running. >From there you can install the 64bit fedora-release package and the 64bit yum/rpm packages which in turn will drag in much of the 64bit library stuff. After that you can update various other things like mkinitrd, kernel, module utilities etc > hand. I'm rather skeptical that "yum upgrade" will figure it out > automatically. More than likely, neither yum nor rpm will have any idea how It won't do the updating itself because they are not "upgrades". It will figure out dependancies happily enough and pull in needed 64bit libraries. Another problem is space - you need to get a lot of 64bit stuff on before pruning 32bit libraries etc Doable but only if you know the system well and can think on your feet -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines