Hi Chris.
Thanks fo.r the reply
.
The principle reason for doing/testing dual boot is to have the
ability to be able to do a remote reinstall for a fresh OS on a remote
box. If you know of a way to accomplish that, I'm more than willing to
hear it!!
Everything I've seen regarding doing reinstalling of OS, requires
having access to the box, with fresh media.
This is really intended to allow me to detect if the "base/master"
system has been hacked, and then to immeadiately switch to the minimal
OS/system, which would then invoke a netinstall for the hacked
system/OS to have a clean system.
So, the test is to have a dual Centos process, which is what I'm
looking to implement right now.
Here are the current steps I've used, feel free to tell me where I've
gone off track.
-Centos6.5
-Lenovo
-250G Drive
OS1
-insert the centos 6.5 dvd
-select the fresh install
-basic storage device
-Fresh Installation
-Create Custom Layout
LVM Volume Groups
VolGroup 237972
lv2_apps 5000 /apps2
lv2_backup 5000 /backup2
lv2_home 5000 /home2
lv2_root 10000 /
lv_apps 10000 /apps
lv_backup 10000 /backup
lv_home 10000 /home
lv_root 51200 /
lv_swap 3824
free 127948
Hard Drive
sda
sda1 500 /boot ext4
sda2 237974 VolGroup physical volume (LVM)
On Fri, Dec 27, 2013 at 5:36 PM, Chris Murphy <lists(a)colorremedies.com> wrote:
On Dec 27, 2013, at 1:48 PM, bruce <badouglas(a)gmail.com> wrote:
> Hi Chris,
>
> For my tests right now, I'm simply trying to get dual Centos up/running,
OK but why do it the hard way, instead of putting one of them in a VM? Or better, Fedora
20, and put two CentOS and another Fedora each in their own VM? In that case you don't
have to deal with the esoteric, user hostile, world of bootloaders on Linux. You can just
get to booting multiple OS's. And they boot faster.
The only reason for dual booting I can think of is expressly to learn about the
challenges of getting bootloaders to do dual booting.
> Based on what you've said, there are errors in what I'm trying to
> accomplish. You wouldn't have a few mins to walk me through this would
> you.
It's a lot more than that I can assure you. It took me more time than I care to
admit, and if I could get that time back from the life blood sucking experience it was,
I'd probably do that.
remove "hidemenu" so you can see the menu, and duplicate the two entries,
changing just the one thing that matters which is the menu entry name, and the root. You
do not need separate swaps either.
hidemenu
title Centos (2.6.32-431.e16.x86_64)
root (hd0,0)
kernel /vmlinux-2.6.32-431.e16.x86_64 ro
root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD
rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16
rd_LVM_LV=VolGroup/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
quiet
initrd /initramfs-2.6.32-431.e16.x86_64.img
title Centos2 (2.6.32-431.e16.x86_64)
root (hd0,0) kernel /vmlinux-2.6.32-431.e16.x86_64 ro
root=/dev/mapper/VolGroup-lv2_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD
rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16
rd_LVM_LV=VolGroup/lv2_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb
quiet
initrd /initramfs-2.6.32-431.e16.x86_64.img
>
> I'm convinced that this is doable, and that whatever mistakes I've
> made are probably subtle/easy to correct.
>
> Do you happen to know of a good tutorial for this that walks through
> all the steps.
Not really. It's the domain of bad documentation designed for developers, not users.
I learned what I learned via immense suffering and blunt contact.
Chris Murphy
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