[Bug 1512589] [NEW] partman-efi should follow partman-auto/disk to reuse the ESP.

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Shih-Yuan Lee (fourdollars):

[Impact]

 * It may cause the installation failed when the users use
https://wiki.debian.org/DebianInstaller/Preseed under some conditions.

[Test Case]

 * Prepare a computer with UEFI secure boot enabled that has two system storage drives, such as /dev/nvme0n1 and /dev/sda.
 * Install the general Ubuntu system on /dev/nvme0n1 first.
 * Use debian-installer netboot images with the following d-i preseeds to install another Ubuntu on /dev/sda.
 * During the installation on /dev/sda, it will use /dev/nvme0n1p1 instead of /dev/sda1 as the EFI System Partition.

[Regression Potential]

 * None

[Other Info]

 * This issue is found in Ubuntu OEM projects that used dell-recovery
/ubuntu-recovery on the platforms that have more than one system storage
drive.

----
   Current implementation in partman-efi/fstab.d/efi is to find the
   first EFI System Partition (abbr. ESP) to use when we provided
   some kind of partman-auto/expert_recipe.

   However if the system has more than two ESPs, partman-efi will still
   use the first ESP it found even when we specify what we want in
   partman-auto/disk.

   For example, when the system has /dev/nvme0n1 and /dev/sda and we
   specified partman-auto/disk and partman-auto/expert_recipe as the following.

       d-i partman-auto/disk string /dev/sda
       d-i partman-auto/expert_recipe string \
                                             \
         ubuntu ::                           \
             100 150 200 free                \
             $iflabel{ gpt }                 \
             $reusemethod{ }                 \
             method{ efi }                   \
             format{ } .                     \
                                             \
             500 10000 4000000 ext4          \
             $primary{ }                     \
             method{ format }                \
             format{ }                       \
             use_filesystem{ }               \
             filesystem{ ext4 }              \
             mountpoint{ / } .               \
                                             \
             105% 150% 200% linux-swap       \
             method{ swap }                  \
             format{ }                       \
             .

   If there is already another Linux system installed in /dev/nvme0n1,
   partman-efi will reuse /dev/nvme0n1p1 and mount it at
   /target/boot/efi instead of reusing /dev/sda1 that we specify in
   partman-auto/disk.

   This should not be the behavior that we expected it will be.

** Affects: partman-efi
     Importance: Unknown
         Status: Unknown

** Affects: debian-installer (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: partman-efi (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: trusty vivid wily xenial
-- 
partman-efi should follow partman-auto/disk to reuse the ESP.
https://bugs.launchpad.net/bugs/1512589
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