[Bug 1049549] [NEW] Ubiquity proposes useless options that break Windows boot

[YannUbuntu]

Public bug reported:

The "Something else" option (= manual partitioning screen) allows the user to change the location where GRUB will be installed.
("Device for bootloader installation" combobox).
AFAIK, the default entry in this combobox is /dev/sda. Currently the combobox also allows to select any partition (eg /dev/sda1 , /dev/sda2...)

The following entries are useless and SHOULD be removed:
- all partitions except the partition containing /boot

The following entries break Windows boot and MUST be removed:
- all partitions containing Windows boot files (bootmgr, ntldr, EFI partitions)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1049549

Title:
  Ubiquity proposes useless options that break Windows boot

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  The "Something else" option (= manual partitioning screen) allows the user to change the location where GRUB will be installed.
  ("Device for bootloader installation" combobox).
  AFAIK, the default entry in this combobox is /dev/sda. Currently the combobox also allows to select any partition (eg /dev/sda1 , /dev/sda2...)

  The following entries are useless and SHOULD be removed:
  - all partitions except the partition containing /boot

  The following entries break Windows boot and MUST be removed:
  - all partitions containing Windows boot files (bootmgr, ntldr, EFI partitions)

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