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Re: [Question #78747]: How to install Ubuntu over RedHat EL and keep all the data

 

Question #78747 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/78747

Tom proposed the following answer:
For a general case without knowing any details and assuming you are
using server edition i would say that from a command line type in

sudo parted

help

This should give you all the commands in parted and give a fair idea how
to use it.  To see all the partitions on the drive it's currently
looking at type

print

but the chances are that you'll need to change drives to whichever one
you want to install Ubuntu onto so try

select /dev/sdc
print

Note that the up arrow on your keyboard can cycle back through your
previous commands to save you re-typing anything much.  Ok so create
partitions like this (again this is assuming we are dealing with sdc but
on your system it might be a different physical drive) also i'm assuming
that the new drive doesn't have any data or anything that you want to
save.  If there is stuff there then don't do any of this ;)

sdc1 5Gb Primary Partition with 'file-system' = linux-swap
sdc2 10Gb Primary Partition, file-system = ext3
sdc3 15Gb Primary Partition, file-system = ext3
sdc4 The rest of the drive, Extended Partition, no filesystem
 . sdc5 To completely fill sdc4, Logical Partition, ext3 again

quit

Then start the installer and when you get to the partitioning section
choose "Manual Partition" which is the 3rd choice and hardest to spot at
the very bottom.  It will rescan your drives again.  Now edit sdc2 to
set it's "Mount Point" to "/" and edit sdc3 to set it's "Mount Point" to
"/home".  The rest of the partitions don't need "Mount Points" although
it might be helpful to try setting sdc5's "Mount Point" to
"/home/username/Data" although i'm not sure it's wise to set sdc5 to
anything at this point.

Ok so that should install just fine.  The grub should install and pick-
up on the presence of RedHat and put that at the end of the boot-menu
for you automatically :)

Good luck and regards from
Tom :)

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