Hi,

I would like to be able to share a data storage partition between my two operating systems (RHEL 5 & Scientific Linux (a derivative of RHEL, just an old kernel)). I tried creating a data partition during the RHEL5 install process, but can't get both OS to see it.

I see some online advice that laying out all the partitions by hand ahead of time might be a better avenue. Don't you need an operating system already installed (i.e. to use fdisk) to do this, and hence have to partition during the install?

Thanks!

What do you mean by, "can't get both OS to see it"? What did you try? All you should need to do is mount the partition (perhaps some other things too, depending on which filesystem is on it).

I answered a similar question here:
http://www.linuxquestions.org/questi...6/#post3287512

You can do all this from either one of your OSes.

Thanks, the manual mounting worked great! However, when I edited the /etc/fstab file to:

/dev/sda10 /mnt/data ext3 defaults 1 2

I get the following error message on boot:

fsck.ext3 Filesystem has unsupported features
e2fsck: Get a newer version of e2fsck.

The kernel I am trying to boot is fairly old (e2fsck 1.32) as is the kernel (2.4.21-52.ELsmp). Which would be the better option: trying to update e2fsck; or recreating this data partition under the older operating system, and then mounting & symbolically linking to the RHEL5 system?

When you mounted manually, was the device /dev/sda10 or /dev/hda10?

Output of

fdisk -L

from older kernel would help too.

when I mounted manually: mount /dev/sda10 /mnt/data



fdisk -l

Disk /dev/sda: 160.0 GB, 160040837120 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 3277 26218080 83 Linux
/dev/sda3 3278 5235 15727635 83 Linux
/dev/sda4 5236 19457 114238215 f Win95 Ext'd (LBA)
/dev/sda5 5236 5489 2040223+ 82 Linux swap
/dev/sda6 5490 5502 104391 83 Linux
/dev/sda7 5503 8766 26218048+ 83 Linux
/dev/sda8 8767 10724 15727603+ 83 Linux
/dev/sda9 10725 10978 2040223+ 82 Linux swap
/dev/sda10 10979 19457 68107536 83 Linux

Keep the FSCK orders to 0 0 when you try mounting via /etc/fstab
(As u can see in your own example, you did not provide any fsck options with the manual mount, while due to your fsck version, the mounter while reading the fsck options from fstab is throwing an error)

So, I would recommend is, just wipe out fsck order from fstab. Make it 0 0

~ DaExecuter

That did it, thanks!