Until some time ago I had a dual Windows 7 and Fedora operating system, then I completely moved to Fedora. Recently I have become interested in Scientific Linux and wanted to install it besides my Fedora. I took a back up of all my data and formatted my HDD for a clean install of both of them. This is what I did:
First I installed Scientific Linux with these partitions (contents of /etc/fstab):
# Created by anaconda on Tue Aug 9 19:24:59 2011
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
UUID=9f5def10-799b-44a8-8478-c2ae3687d97e / ext4 defaults 1 1
UUID=0939b58b-bfaf-41ed-87f3-23fdd1c94579 /FedoraRoot ext4 defaults 1 2
UUID=2c0be06d-4e35-44fe-9775-51321f3cdcfb /PrimaryPartition1 ext4 defaults 1 2
UUID=9d24b4e1-d755-4d7f-a19e-326591f67f4f /PrimaryPartition2 ext4 defaults 1 2
UUID=a4c18eba-b79c-45cc-aa81-6252d36644cf /boot ext4 defaults 1 2
UUID=845791f6-5108-4dec-9e5f-7767b080c0c8 /home ext4 defaults 1 2
UUID=da1240c4-b697-4202-af81-0aff3be6be47 /tmp ext4 defaults 1 2
UUID=a62c9bd1-6a10-4c5a-b0a9-3dc8cd9a8729 /var ext4 defaults 1 2
UUID=60fac535-42f8-4dcb-9909-51668da177b6 swap swap defaults 0 0
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
Then I went on to install Fedora 15; I kept the same primary and extended partitions but only changed the names of "/FedoraRoot" to "/" and "/" to "/SLRoot" in the above list while installing Fedora. I also chose the boot directory of Fedora to be /dev/sda1/ which I wanted to be the /boot file for both systems while I had chosen the boot file for Scientific Linux to be "/dev/sda".
Everything went well until the final step of copying the files an error came that some of files that Fedora wanted to install in /usr/share, /usr/lib64, /usr/bin, /etc/system..., /etc/issue..., /etc/redhat-release... and /etc/rpm are already present in the Scientific Linux format and so there is a conflict and it has to terminate!!! I must have made some strange mistakes in the definitions, could you please guide me?
I actually wanted to share the /boot, /swap, /var and /temp partitions between the two distros, shouldn't the /usr and /etc that I hadn't defined have gone into the root partition of each distro? and had no conflict? Any help would be greatly appreciated.