ready to install 3.1 roms

[3246251196]

hey guys. i will be getting 3.1roms next week. i have OS3.5 in my house now. on it is 3.1 installer (HD installer)

at the moment my hdd has 2 partitions: hd0 / hd1

hd0 = WB3.0 boot

now, if i install 3.1 will it just UPDATE HD0 to WB3.1 OR will it completely overwrite everything  which has useful stuff in it (for instance TOOLS in C to do with WHDLOAD)?

also, will my hd1 parition be left alone?

thanks

[3246251196]

thanks for your help guys!!!! great info!

[3246251196]

will all the TOOLS (i.e. files int /C) still exist. these are important to me...?