[Bug 1049549] Re: Ubiquity manual partitioning offers to install grub in a way that breaks Windows boot
YannUbuntu
yannubuntu at gmail.com
Fri Sep 14 23:29:57 UTC 2012
FYI, here are examples of XP that couldn't boot because GRUB stage1 has been installed in its PBR:
http://paste.ubuntu.com/1144006
http://paste.ubuntu.com/1145142
Bug #1050653 (remark: this is NOT a duplicate)
Here are examples of Windows7 that could not boot because stage1 was in its PBR:
http://paste.ubuntu.com/1102905
http://paste.ubuntu.com/1167512
http://paste.ubuntu.com/1158396 (separate Windows boot partition)
http://paste.ubuntu.com/1109157
FYI, see also how to fix a PBR (to remove stage1 from it):
https://help.ubuntu.com/community/BootSectorFix
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https://bugs.launchpad.net/bugs/1049549
Title:
Ubiquity manual partitioning offers to install grub in a way that
breaks 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 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.
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