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[openFATE 314493] Reuse existing Windows EFI System Partition by default
Feature changed by: Ludwig Nussel (lnussel)
Feature #314493, revision 4
Title: Reuse existing Windows EFI System Partition by default

openSUSE Distribution: Unconfirmed
Requester: Important

Requested by: Michael Chang (michael-chang)
Partner organization:

The current installer will create new EFI System Partition (ESP) if
Windows EFI System Parititon exists. The rationale is that we are not
sure the consequence about integration an Linux boot into an existing
Windows setup. Above consideration may not be necessary as ESP is
defined in UEFI specification as common places for OS loaders, which
differentiate by their own paths. There's no concept that ESP is
specific to OS and be exclusive access from it.
That would also lead to several issues as two ESP is confusing in
general to the firmware and OS tools as they would assume only one
single ESP as valid.
Here are some of the failure case illustrated.
1. Modify (or repair) Windows boot configuration (BCD) on such system,
two system partitions make Windows quite unhappy. It completely ruined
boot configuration until hiding (by changing partition type) the one
created by SUSE.
2. Boot loader config may be separated from one another as they're
potentially placed in different ESP. This would lead to multiboot EFI
loader (rEFIt) or any multiboot prober to be able to config the setup

+ Discussion:
+ #1: Ludwig Nussel (lnussel) (2013-02-12 09:24:14)
+ reusing the efi partition on my windows laptop worked just fine

openSUSE Feature:

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