Hello. Since I do not know where to post this message, I will post it here. We need inputs from the users of pii machines (mostly people at BNL, but also almost everyone in the group since everyone at some points uses these PCs). We are getting new 6 PCs. In 5 PCs, the RedHat7.1 will be install since 2 of them is pre-installed with RH7.1. (One is WIN2001 for general use) Now the question is whether we want to upgrade the rest of pii machines (currently RH6.2). As it is pointed out by someone, RH7.1 use RedHat special gcc which does not produce the binary compatible executable to RH6.2. This means that you can not copy compiled program between rcas(RH6.1) and pii if we upgrade pii to RH7.1. If we do not upgrade the rest of them, we have a big pain such that a program compiled in one pii do not work in the other pii. We could install the official gcc (3.0.1), but this probably does not help compatibility issues. Anyway, here is the list of options I can think. (Only realistic options, not like never use RH) 1. Just upgrade all linux to RH7.1. Advatage --- It is easy and straight forward. Disadvantage --- You can not copy the compiled code between rcas and pii. (There is a rumor rcas will be RH7.1 after the current run.) 2. Don't upgrade the rest of pii. Advantage --- Whatever working now will work tomorrow. Disadvantage --- not compatible between the new and old pii 3. We should stick with RH6.2 Advantage --- Whatever working now will work tomorrow. Disadvantage --- The default RH6.2 does not work with new PCs. (I mean this will require the effort by someone to make it work. eg. new XFree, new kernel, etc...) Also, are we sure all the things we use work with RH7.1??? At least, brat, brop and brag are working with RH7.1 as much as I know. Anyway, we need the inputs from people. Otherwise, you could be crying after the fact. hiro
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