Unable to re install osx after erasing HD on iMac

Hi
I have a 2007 iMac 4,1 Intel core duo 2ghz that refused to boot after crashing.
After much searching of support articles i have tried all suggestions.
It would not accept the original [tiger] install discs[superdrive spits them out] so i used my macbookpro to erase the hd and then install disc 1 via target mode.
The iMac now gets as far as select destination, in the installer, but the hard drive does not appear [waited more than 1 hour].
I have the leopard upgrade dvd also.
I ran disk utility verify and its says vol 1 iMac appears ok
1 HFS volume checked
volume passed verification
but verify disk permissions says first aid failed- no valid packages
Does anyone have any solutions that will solve this, as i am no expert on these matters and really need step by step help.
Many thanks in advance
P

I am confused!
You said.
Please confirm:
You want to erase the drive on the iMac after booting from the Macbook Pro, with the iMac in TDM. Is that correct?
YES I did that so as to install osx install disk 1.
When you boot in TDM and run DU off the MBP hard drive, does it recognize the iMac hard drive?
YES i erased the iMac HD and installed osx disk 1.
Note that you cannot erase / reformat the drive from which the computer is booted.
BUT u said this previously!
Try this:
Repeat this first part, then reformat the drive on the iMac, using Disk Utility on the installer disk. Select Mac OS extended, GUID partition.
Then run the installer in the usual way.
details are
mount point : /
format: mac os extended [journaled]
owners enabled : yes
folders : 5,563
cap 465
avail 46
used 5.0 gb
files 11,728
write status : read \write
S.M.A.R.T status : verified
verify: vol passed verification
permissions verify ; error no valid packages
installer hangs at destination?
What about this? permissions verify ; error no valid packages

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Unable to re install osx after erasing HD on iMac

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