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From: Ken Heard on 5 May 2008 09:10
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I am trying to install Etch in a new box which has an Intel dual core
CPU and a 250 gB SATA hard drive. Since the instructions in the Etch
Installation Guide have not been helpful, I was consequently left with
my intuition, which unfortunately proved insufficient for me
successfully to complete the partitioning.

What I wanted to do is create a two primary partitions. One (sda1) of
82.2 mB would be for /boot partition. The other (sda2), comprising all
the remaining space on the hard drive, would be the one and only
physical volume (for the time being) of the LVM, which in turn would be
used for the one and only volume group in the system, named SOL.

In this volume group I wanted to create six logical volumes of varying
sizes, labelled home, root, swap1, tmp, usr and var. Of those six
logical volumes, I want two of them (swap1 and home) to be encrypted.

After I created those two primary partitions and the logical volumes I
wanted, the partition overview screen showed the following:

- ------------------------------------------------------------------------
LVM VG SOL, LV home - 223.1 gB Linux Device Mapper
#1 223.1 gB
LVM VG SOL, LV root - 3.2 gB Linux Device Mapper
#1 3.2 gB
LVM VG SOL, LV swap1 - 3.2 gB Linux Device Mapper
#1 3.2 gB
LVM VG SOL, LV tmp - 1.1 gB Linux Device Mapper
#1 1.1 gB
LVM VG SOL, LV usr - 16.1 gB Linux Device Mapper
#1 16.1 gB
LVM VG SOL, LV var - 3.2 gB Linux Device Mapper
#1 3.2 gB
SCSI1 (0,0,0) (sda) - 250.1 gB ATA WDC WD2500AAJS.0
#1 primary 82.2 mB B F ext3 /boot
#2 primary 250.0 gB K lvm

Undo changes to the partitions.
Finish partitioning and write changes to disk.
- -------------------------------------------------------------------------

When I selected the "Finish" option, the following was returned:

No root file system is defined.
Please correct this from the partitioning menu.

I went back to the partitioning menu but could find no way to indicate
where to mount each logical volume, nor to indicate which volumes were
to be encrypted.

My question: can I do what I want to do and -- if so -- how?

Ken Heard
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From: Douglas A. Tutty on 5 May 2008 22:20
On Mon, May 05, 2008 at 03:40:01PM +1000, Alex Samad wrote:
> On Sun, May 04, 2008 at 05:52:11PM -0400, Ken Heard wrote:
> [snip]
>
> Can I suggest 2 things
> 1 make a bigger boot partition (i typically make it 500M - the cost of
> drives make this easy, plus it gives you room to move)

But /boot only holds the kernels, initrds, and /boot/grub. How many
kernels do you keep around? My /boot is 64 MB and my / is 300 MB. The
kernel's modules go in /lib which is in the rootfs.

> 2 make another primary partition for root, I typically make it 10G, but
> you can make it a lot smaller. Easier for recovery when your root is on
> a primary partition and plain ext3.

Unless you're using LVM or something, you don't really need a separate
/boot partition unless you have /boot, then / with everything else in
it. I happen to use LVM over raid1 so I have a separate /boot.

If you don't need a separate /boot, then / with /boot (with the other
usual suspects off in their own partitions) will certainly fit (and is
better if it does on some systems) in the first 512 MB.

Doug.


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