Ubiquity manual partitioning offers to install grub in a way that breaks Windows boot
Bug #1049549 reported by
YannUbuntu
This bug affects 8 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubiquity (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
The "Something else" option (= manual partitioning screen) allows the user to change the location where GRUB stage1 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 break Windows boot and MUST be removed:
- all partitions (eg /dev/sda1 , /dev/sda2...) containing Windows boot files (bootmgr, ntldr). In other words, all partitions detected as "Windows" by os-prober.
Probably the problem is the same with systems other than Windows, so I recommend to remove all partitions detected by os-prober.
description: | updated |
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If I have multiple linux distributions I may want to re-install grub to the partition with '/boot' from the other install, not the current one.
There are no conflicts on EFI partitions, as when we install in UEFI mode grub uses it's own subdirectory as per UEFI spec.
Why should I not install on top of Windows partitions? Maybe I'm done with windows, do not want to boot it but want to keep it for accessing it's files?
Just because these options are useless for you, it doesn't mean that grub cannot be installed into them and be useful to somebody else.