[Bug 484102] Re: Grub2 doesn't chainload truecrypt loader correctly

[Lukas Bunsen]

We are Linux users, our default operating system is Linux. Therefore we have grub in our MBR. Grub is loading by default, and we only chainload the Windows boot manager if we want to start windows.
The approach described by pzolee is only a workaround,  as you have to press escape each time to get to your default system.

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https://bugs.launchpad.net/bugs/484102

Title:
  Grub2 doesn't chainload truecrypt loader correctly

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: grub2

  I am working on a dual-boot system with one hard disk.
  sda1 = /boot
  sda2 = Windows Vista Ultima encrypted with TrueCrypt System Encryption
  sda3 = Ubuntu 9.10 encrypted lvm

  The grub2 entry for windows is created by the file 50_windows in the
  "/etc/grub.d" directory:

  #! /bin/sh -e
  echo "Adding Windows Vista entry" >&2
   cat << EOF
  menuentry "Windows Vista" {
  	set root=(hd0,2)
  	parttool (hd0,2) boot+
  	chainloader (hd0,1)/truecrypt.mbr
  }
  EOF

  Choosing this entry in the grub2 menu the Truecrypt loader only shows the following message: 
  "TrueCrypt Boot Loader
  Load damaged! Use Rescue Disk: Repair > Options > Restore Truecrypt Boot Loader"
  But this would install the Bootloader into the MBR, where grub2 shall be. The TrueCrypt Loader is in /boot/truecrypt.mbr
  Booting Ubuntu works without problems.

  With grub-legacy the chainloading worked.

  The menu.lst:
  title		Windows Vista
  rootnoverify	(hd0,1)
  savedefault
  makeactive
  chainloader	(hd0,0)/truecrypt.mbr

  My Grub2 version: 1.97~beta4

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