hi guys,

i have a machine with a 1TB hdd

i want to install centos7 and slackware on the same drive

i installed slackware first

i partitioned the drive as follows

sda1 150 gb slackware root
sda2 150 gb /home
sda3 100 gb /data1
sda4 50 gb /data2
sda5 50 gb /shared

i left the other 500gb alone for the centos installation

i went through the centos installation but when it comes time to setup partitions i am only able to create /

the space says 500gb free but i can only create / why can i not make any other partitions? it says fail...unable to verify partition scheme or something like that.

whats the best way to accomplish what im trying to setup?

also can i share a few partitions...maybe one of the 50GB or 100GB between my distros...could be useful..

thanks for reading

Yes. I share a common /boot partition. Other partitions could be shared, as long as both OS's recognize the file system type it was formatted with. Ownership and permissions may give you a headache. Since my shared partition is owned exclusively by root, I don't have an issue with it.

As for the main question, I don't have an answer. Maybe it has something to do with primary partitions vs logical extended partitions.

Primary and extented partitions now are in play I do believe, that left over 500GB would fall into , yes? it'd have to be extened? then split into /dev/sdaX --

You can only have one extended partition. When you create the extended partition you need to have it include all of the remaining free space on the drive. Then you can continue on to create partitions in the extended partition for your Centos installation.

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Steve Stites

I tend to play it by ear whenever I got a do that, this is why I do not remember specifically all of that info, Thanks JailBait -- <-- catchy name BTW ... want some candy? J/K lol

are extended and logical the same thing?

so are you saying my slack can only have 3 primary partitions adding up to 500
then an extended (logical) partition of 500gb for my centos?

thanks

logical partitions are subdivisions of the extended partition. So you create 3 primary partitions. Then include all the rest of your space in an extended partition. Then divide the extended partition into however many logical partitions you need.

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Steve Stites

ok so i should have a primary for slack
primary can be subdivided into a few logicals i need for slack

then an extended for centos
subdivided into however many logical partitions i need for centos?

sorry didnt finish reading your post...thanks

ok so where should / of each distro be installed?

thanks

good question... in there own partition do not mix them

GRUB of the last install will be the one that takes command of boot -- so LiLo will go away and if Centros uses grub2 then it will be the one that will have Slackware and itself in grub when you boot it, or you can have Centros NOT install grub then have to deal with that.. better to have it install grub then deal with boot secquence later

hi BW

yes i know they need to be in their own partition and i have grub2 booting both distros
but the partitioning on the centos is messed up...only 1 partition of 120gb

i am reinstalling now...

do the / partitions have to be on a primary partition? or doesnt it matter?

how should the partitioning scheme be???

not really, but order is better then chaos. you can put / anywhere, /dev/sdb5 / /dev/sda2 /home fstab takes care of direction

what happen to the 500GB?

centos only let me make a / partition and nothing else...

how do you make an extended partition with cfdisk it only has primary and logical option available
do i have to change the type?

thanks for the help

I just ran cfdisk on my /dev/sdb when I deleted it, then created a new partition it questioned me
so I'd say. cfdisk does to allow extended along with primary. but of cource I did not write that to my /dev/sdb