Advertisements Okay I have spent about 3 hours reading around the forum to get caught up (as much as possible) since the last time I did an upgrade to this TiVo. Here's my history and what I want to do... I have a 40hr TCD540040 TiVo and I did my first upgrade from 40 to a 40 + 80 using weaknees upgrade tool and mfsbackup -Tao | mfsrestore -s 127 -r 4 -xzpi. I did this just to see if I could do it before I went all out (or quasi-all out). Next I did a 40 + 80 to 250 + 250 using the exact same method. No problems what so ever. Now I think I have a questionable drive and am ready for a replacement ( I think I want to replace both drives with either 250 + 250 or 500 + 500 ) I have since attemped a backup | restore from 250 + 250 to 500 + 500 and am now getting GSOD followed by prompt reboots (rinse and repeat) and am at a loss as to where to go. I have heard ideas about increasing swap size above 127 using tpip. Will this solve my problem, or is there something else I should be doing? Any help is GREATLY appreciated!!