[Bug 1425681] Re: grub2 does not install on encrypted lvm

[sudodus]

A. I'm afraid that this 64-bit alternate installer does not work in UEFI
mode and that it does not create GUID partition tables, so it works only
with BIOS/CSM mode and it creates MSDOS partition tables. I think it is
a limitation of the alternate installer and not a bug. Use the 64-bit
desktop installer for UEFI.

B. I have tested Lubuntu with encrypted disk with the desktop installers
and the 32-bit alternate installer. And now I am testing the this 64-bit
alternate installer once more ... and it works in the same way as the
32-bit version.

Both alternate installers work according to the attached modified
version of the test-case.

I know a little more now about the encrypted systems, not only the test-
cases, but also what happens afterwards.

1. We have more than one bug (probably more than two bugs).

2a. All Ubuntu flavour desktop test-cases with encryption have only
encrypted disk with LVM, not encrypted home inside the encrypted disk.

2b. I have managed to make cryptswap work (inside encrypted LVM with the
alternate installer), but only in the first session. After reboot it
disappears.

2c. So I suggest test-cases for Lubuntu alternate and desktop with only encrypted LVM and skip the encrypted home. This way it
will be rather similar to the other Ubuntu flavour desktop test-cases with encryption, and much easier to get working again.

3. The alternate testcase will probably work with some simple changes
and the work-around (detour into a text screen) is only to unmount some
partition(s) on the target drive. I think it should be done *earlier*
than the installer does it now.

4. Knowing this (after a lot of testing) the desktop testcase can
probably be simplified too. But there is an additional bug due to the
zRAM, that must be switched off or (better) accepted.

Summary: I think that a developer can make encryption work rather
easily, so that we can get nice and polished test-cases (that work). I
think it is quite possible to revive the alternate test-case before the
release of Vivid (with automatic unmounting of that partition, often
/dev/sda1).

See the attached text version of a modified Lubuntu alternate test-case.
Look for # tags in order to find what is modified.


** Attachment added: "modified test-case for Lubuntu alternate with encryption"
   https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1425681/+attachment/4333477/+files/encryption-alternate-install-all.txt

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https://bugs.launchpad.net/bugs/1425681

Title:
  grub2 does not install on encrypted lvm

Status in debian-installer package in Ubuntu:
  Confirmed

Bug description:
  To reproduce boot a lubuntu alternate amd64 and select guided
  partioning to set up entire encryped lvm. The install will continue
  until you install grub and then grub will not install on the encrpted
  lvm

  The deb on the altenrate installer is 
  /grub2-common_2.02~beta2-21_amd64.deb 

  This is a vivid amd 64 alternate relase but fails with altenrate
  installer so this how to get info

  I expected grub2 to install instead it did not for the encrpytion.

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