Step-by-step manual to partition HD with LVM

[Stephen Liu]

Hi Alexander,

Tks for your advice.

> Okay - but why do you want to do that? Do you have different hard
> drives?

This is a test only, building up my knowledge on installing dual boot
which I never did it before.


If only creating 1 VolGroup, would running "apt-get update/upgrade"
cause confusion???


Summing up your advice (hoping that I did not understand it wrong) I
shall perform following steps on partitioning the HD

# fdisk /dev/hda
creating 2 partitions;
/dev/hda1 255M ext3 as /boot for both OS
/dev/hda2 remaining space ext3


# vgcreate vg /dev/hda2

# lvcreate -L 8G -n FC5Root vg
# lvcreate -L 10G -n FC5home vg
# lvcreate -L 1G -n swap vg

# lvcreate -L 8G -n UbuntuRoot vg
# lvcreate -L 10G -n Ubuntuhome vg
# lvcreate -L (restspace) -n data vg

- swap will be shared
- /home will not be shared because I'm worrying some files being
conflict
- data partition will be for sharing data storage, automatically
mounted on booting either OS


# mke2fs -j /dev/vg/FC5Root
# mke2fs -j /dev/vg/FC5home

# mke2fs -j /dev/vg/UbuntuRoot
# mke2fs -j /dev/vg/Ubuntuhome
# mke2fs -j /dev/vg/data


Please correct them if I made any mistiakes.  Tks.


Now I come to a roadcross, how to netvigate Ubuntu/FC5 installing
/boot, /, /home, swap on respective LV.  I don't expect install them on
the /dev/hdaX partitions first and then copying them to their
respective LV.  Please shed me some light.  TIA

B.R.
SL


 
> > /dev/hda1 /boot/grub /boot ext3 255MB
> > 
> > /dev/hda2
> > Linux-1
> > VolGroups00
> > Primary LogVol / 8G ext3
> > extended LogVol /home ext3 10G
> > extended LogVol swap 1G
> > 
> > /dev/hda3
> > Linux-2
> > VolGroups00
> > Primary LogVol / 8G ext3
> > extended LogVol /home ext3 10G
> > swap partition will be shared
> 
> I don't understand that. What's that supposed to show? hda3 and
> then something about a Primary LogVol? I don't get it.
> 
> > In my present situation I can tolerate as follows if not necessary
> to
> > delete the partitions;
> > 
> > /dev/hda1 /boot/grub /boot ext3 255MB
> > 
> > /dev/hda2
> > VolGroups00
> > (for Linux-1)
> > Primary LogVol / 8G ext3 
> > extended LogVol /home ext3 10G
> > extended LogVol swap 1G
> > 
> > (for Linux-2)
> > Primary LogVol / 8G ext3
> > extended LogVol /home ext3 10G
> > swap partition will be shared
> > 
> > Please advise.  TIA
> 
> I don't understand.
> 
> You said, you want to  dual boot linux/linux. In this case, I'd 
> create *ONE* Volume Group. I'd make this VG out of just ONE Physical
> Volume /dev/hda2.
> 
> In the VG, I'd then create Logical Volumes as necessary.
> 
> Suppose you'd install Fedora Core 5 and Ubuntu, I'd create the
> following LVs:
> 
> - FC5Root
> - FC5USR
> - FC5Var
> - FC5Opt
> 
> - UbuntuRoot
> - UbuntuUSR
> - UbuntuVar
> - UbuntuOpt
> 
> - Home
> - Swap
> 
> I'd actually name them EXACTLY this way. 
> 
> Alexander Skwar
> -- 
> Ein Dichter hat zwar die schnellsten Irrtümer, aber auch dafür die
> schnellsten Bekehrungen. Andere haben keinen Standort, um ihre Fehler
> zu übersehen, die sich von einem Tal ins andere verlieren.
>                 -- Jean Paul (eig. Johann Paul Friedrich Richter)
> 
> 
> 
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