On Fri 11 Mar 2005 20:44, Peter Jones wrote: > So in 14400000 boots, 5300 of them will be failures, as opposed to 5200 > of them the classical way. Roughly. I didn't understand your calculation, but your conclusion does not tally with my experience. You are saying that 1 in 3000 boots will fail. In my case this would mean my laptop would fail to boot about once every 5 years. Actually it fails at least once a week. I'm sure this is not due to a "catastrophic disk failure". (It is probably due to a bad connection. This is a 4-year old Sony Picturebook.) If as you say this is no more or less likely to occur with LVM then this would not be a cause for concern. -- Timothy Murphy e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland