Please help new hard drive install

[Knapp]

On Wed, Dec 17, 2008 at 5:09 PM, Rashkae <ubuntu at tigershaunt.com> wrote:

> Knapp wrote:
> > Hello, I just got a new 750gb hd. My old hd is 170gb or so. I would like
> to
> > do 2 things. First and foremost, I would like to move my home dir to the
> new
> > drive.
> >
> > The new drive is now partitioned with a 8gb swap and then a 3ext section.
> I
> > would also like to make a small partition for doing things like
> installing
> > 8.10 for testing out the new kde 4, so some sort of duel boot but only
> with
> > linux. I don't use windows at all save for a bit of wine.
> >
> > I used gparted to get this far and I see how I could mount it but how do
> you
> > copy and move the home partition??
> >
> > Also I welcome any advice about how to set this up so my computer runs
> > faster by having the right partitions on the right drives!
> >
> > BTW it is all sata II
> >
> > Thanks for any help!
> >
> >
>
> Copying of your home partition should be done in single user / rescue
> mode.  (You should be able to access this mode by Pressing ESC during
> grub start sequence to see menu.)
>
> Then you mount your new partition, ex:
>
> mkdir /mnt/target
>
> mount -t ext3 /dev/sdb2 /mnt/target  (making sure that sdb2 is indeed
> the correct partition for your new drive.)
>
> cp -a /home/. /mnt/target/
>
> When the copy is done, you can edit fstab to mount the new partition as
> home.
>
>
> As far as organizing your hard drives for performance, I'm not sure if
> there are absolute rules, but here are some things to keep in mind as
> you are experimenting.
>
> The new hard drive will most certainly be faster than the old one.  So
> stuff you want to work faster should be ported to the new drive.
>
> you can test this yourself with hdparm
>
> hdparm -tT /dev/sda
> hdparm -tT /dev/sdb
>
> The other point to keep in mind is that the start of the drive will be
> much much faster than the end of the hard drive.  That is, a small 20GB
> partition at the start of your old 170GB drive is probably much faster
> than a small 20GB partition at the end of your new drive, even though
> the new drive is faster overall.
>
> Personally, I like to keep my swap partitions at the start of the drive,
> since I find a swap storm to be the most performance killing IO
> operation that affects interactivity. (ie, unlike loading programs or
> copying large files, Swap I/O will cause my already running programs to
> stutter and be unresponsive).  The other school of thought I've heard is
> to keep swap partitions in the middle of your drive, that way, IO
> operations that need to read/write to both swap and filesystem on the
> same drive will only need to move the hard drive head, at most, half
> stroke across the platter, whereas if the swap is at either end of the
> platter, the potential distance between File system IO and Swap IO is
> the entire drive  (and keeping in mind that seek time for the hard drive
> head is the largest performance bottleneck of any modern computer)
>
> If you have swap space on both hard drives, edit your fstab file so each
> swap partition has the pri=0 option.
>
> Ex:
>
> UUID=61c46e3e-a646-4750-9729-e08212371a6f none  swap   pri=0   0  0
>
>
> If both Swaps are given the same priority, Linux will balance the load
> between them evenly.


Thanks, I was just about to burn a partition magic CD so I could do
partition copying!
Thanks to the first poster too!

-- 
Douglas E Knapp

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