Bug#766721: debian-installer: Failure to perform pertitioning of disk

[Takahide Nojima <nozzy123nozzy@gmail.com>]

Package: debian-installer
Severity: important
Tags: d-i

Dear Debian Team,

I tested installation using Debian-jessie-DI-b2-amd64-netinst.iso. I met
some failure in instalation.

 [1] It seemed to correct proceeding partitioning of HDD in
installation,and also to finish installation correctly.But 
after reboot, it seemed not to find boot sector and failed to boot.

 [2] After failure installation, I examined HDD using SystemRescueCd(
     http://www.sysresccd.org/SystemRescueCd_Homepage). Finally I found
 there was only 1 partion in size of 512MBytes formatted by vfat.
 Also I found this partion has only 1 directory named 'EFI'.
 (There were no partion of ext4, and no whole size of disk.)

 Here the ditails:

  Installation target machine:
    Acer TravelMate P253
 
  BIOS Settings:
     Legacy BIOS, Secure boot disabled.

  I don't have any idea of something wrong. Can anyone let me know
  how to investigate this failure?

  Thank you in advance.

  Regards
  Takahide Nojima.

  --- System Information:
  Debian Release: Jessie/testing
    APT prefers testing
  Architecture: amd64 (x86_64)