i have download redhat 7.2 enigma from ftp , i have a pentium 3 600 can go up to 732mgthz and 128 memory sdram ide cd-rom floppy drive and 2 ide hdd 8 and 19 gigas and 2 scsi hdd 170 and 500 megas , what i would like to know is how to make the partitions sizes for redhat enigma i know swap must be 256 megas but i dont know the sizes for ext3 / raid and all the others , i will install all software on redhat gnome,kde,.....
what partitions should i make and with what sizes , thanks.

your swap does NOT need to be twice the size of your RAM. i'd recommend about 100 personally.

as for the rest erm... well it depends on what size drives you are using. if you're using those two ide drives together i'd suggest:

primary drive 8gb:
/boot 50mb
/ rest
swap 128mb

second drive:
/usr 9gb
/home 10gb

wouldn't bother with the scsi drives. that'll do you fair enough, it all depends on how you want to store data. if you are using DivX for example, i'd personally recommend allocating /home as a larger partition (the entire 2nd drive) and putting /usr on the first, or just not bothering with /usr at all, letting it all go into / instead, basically as long as /usr and /home are over say, 2gb each you're unlikely to ever run into particular problems, so it's all up to you really

i would like to thank you for your help and ask one more thing the sistem doesn´t need any raid or ext3 partions ? thanks

well your data partitions (/usr etc...) ARE gonna be ext3.... as for raid... well if you want raid that's up to you, but you donj't really seem to sure about what it actaully is, and if that's right then you don't want any. you'd know if you did.