*** This bug is a security vulnerability ***

Public security bug reported:

Hi,
  I have decided to switch from federo10 to ubuntu .
I have started to install ubuntu.The ubuntu partition manager has asked to 
define the partition.
I have selected manually and i have removed the logical partition that i have 
installed federo 10.
The Partition manager asks that removing  a partition will delete all the data 
in it.
I ask th partition manager to format and remove the data also.
then the ubuntu installtion procedure continues.
the ubuntu founds that there are certain linux file in that system and it 
calculates how many percentage of file it can skip for copying.
I am raising a question that if partition manager removes all the files and 
deletes the partition and recreates it once again .How could ubuntu finds the 
existing linux file system?.Even though I knew that the inodes will deleted in 
a file system and files will be present in that particular location itself as 
there are too many partition recovery tools are there I hope that ubuntu seems 
to be proactively finding the removed partition files.
that is not the issue.
the ubuntu then claims that it is removing the conflict files of the other 
operating system.The ubuntu installation procedure continues.
and the installtion has been over and after rebooting i have received a KERNEL 
PANIC message.
On analysing this issue in detail I could find that the grub boot loader has 
been pointed to the old and removed (as partition manager statement)federo core 
kernel. and I couldn't locate the kernel image.The ubuntu kernel image is found 
in the second option.
Please correct this issue,by asking ubuntu installer to remove all the existing 
files in the logical disk and install a fresh copy as we like.Even though 
ubuntu seems to be increase its installation speed by using the existing files 
it couldn't do the process properly.
sorry guys for this big passage.
I am trying to improve the open source ubuntu more efficiently.
Think in a part of a nongeek or non technical fellow if he plans to change 
distro's what will he feel regarding ubuntu when he receives a kernel panic 
message at installing first time our favourite ubuntu? 

Thanks&Regards,
Karthick Selvakumaran.P

** Affects: ubuntu
     Importance: Undecided
         Status: New

** Visibility changed to: Public

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booting ubuntu,partition manager,and ubuntu copier critical issue
https://bugs.launchpad.net/bugs/318243
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