*** This bug is a duplicate of bug 1302418 ***
https://bugs.launchpad.net/bugs/1302418
** This bug has been marked a duplicate of bug 1302418
grub-installer should fall back to grub-pc instead of grub-efi when there is
no EFI system partition
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DavidEscott (david-escott) wrote:
> As a practical matter there really should be an override for the
installer.
+1. I've seen a LOT of online problems reported because Ubuntu installs
in one mode on a computer with another OS installed in another mode.
Usually the existing install in EFI mode and
Steve Langasek (vorlon) wrote on 2013-01-15:
> The current on-disk layout tells you even *less* about how
> the disk will be booted than the current boot method for the removable media
> tells you.
Dear Steve, if the goal is:
Create a dual boot system on top of a pre installed Win7x64.
Why woul
As a practical matter there really should be an override for the
installer. I suspect Win7 will continue to exist for a number of years
and with that there will continue to be UEFI systems that are configured
to boot /dev/sda in bios mode but which will by default be configured to
boot any other me
On Tue, Jan 15, 2013 at 01:48:53PM -, martinr wrote:
> When the Live CD is booted with an UEFI boot sequence, Grub erroneously
> expects a GPT structured HD,
Incorrect. UEFI does not require GPT.
> if possible automatically make the correct Grub installation selection
> accordingly to the i
Conclusion
When the Live CD is booted with an UEFI boot sequence, Grub erroneously expects
a GPT structured HD, even if the boot HD is msdos/MBR structured. Grub doesn't
installs itself to the MBR. When the same Live CD is booted with a non UEFI
boot sequence Grub is automatically installed corr
> If the system is configured in UEFI mode, it should prefer UEFI
consistently for all devices, not just for removable ones.
There is no such rule. Firmware makers can do what they want, including giving
the possibility to boot the HDD in one mode, and boot the removable device in
another mode.
On Sat, Jan 12, 2013 at 04:03:11AM -, YannUbuntu wrote:
> The problem is that Ubiquity chooses grub-pc or grub-efi according to
> the mode in which the install disk is booted, which is not always the
> mode in which the firware is set up to boot the HDD.
This is pathological behavior on the pa
The problem is that Ubiquity chooses grub-pc or grub-efi according to
the mode in which the install disk is booted, which is not always the
mode in which the firware is set up to boot the HDD.
** Changed in: ubiquity (Ubuntu)
Status: Expired => Confirmed
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[Expired for ubiquity (Ubuntu) because there has been no activity for 60
days.]
** Changed in: ubiquity (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1015
I verified in the intial install logs (/var/install/syslog) that
erroneously grub-efi was installed instead of grub-pc:
Code:
Jun 13 13:45:35 ubuntu grub-installer: info: architecture: amd64/efi
...
Jun 13 13:45:38 ubuntu grub-installer: Removing grub-pc ...
Jun 13 13:45:39 ubuntu grub-installer:
The installation CD was booted in a UEFI sequence (default behavior). In
my opinion the boot sequence for the installation CD should not lead to
assumptions about the format of the system HD.
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On Mon, Oct 15, 2012 at 11:22:38PM -, YannUbuntu wrote:
> > there is a specification for a declaration of EFI System Partitions on
> > an MBR-only disk.
> thank you Steve, i didn't know that. Please could you provide a link?
UEFI Specification 2.3.1, section 5.2.1, Legacy Master Boot Record.
> there is a specification for a declaration of EFI System Partitions on
an MBR-only disk.
thank you Steve, i didn't know that. Please could you provide a link?
I will comment the rest on Bug #1050940 (as for the current bug we
don't even know if Ubiquity installed grub-efi or grub-pc, so if the
It might be useful if someone affected by this bug could tar up
/sys/firmware/efi from their system (while booted to CD) and attach it
to this bug.
Leaving the bug 'incomplete' because we currently don't have enough
information to try to address this.
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> - the disk is Ms-Dos (not GPT)
This is not relevant. UEFI does not require a GPT to boot; there is a
specification for a declaration of EFI System Partitions on an MBR-only
disk.
> - and Windows was installed in Legacy mode ( there is no EFI
partition)
Also not relevant. To grub-installer, t
Hi
after looking again at the forum thread, it appears that:
- the disk is Ms-Dos (not GPT)
- and Windows was installed in Legacy mode ( there is no EFI partition)
so Ubiquity should have installed grub-pc for sure.
Now my doubt is: did Ubiquity install grub-efi or grub-pc ?
(can anyone see thi
Hi martinr,
> The Ubuntu Desktop 12.04 amd64 Live CD, was booted with an UEFI boot sequence
> although the hard disk structure is MSDOS with MBR.
If the machine was booted via UEFI, then installing grub-efi is the
right thing to do.
Can you boot a liveCD in the affected machine and run 'efibootm
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubiquity (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1015211
Title:
U
Thanks Martin
(may be duplicate of Bug #916299 )
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https://bugs.launchpad.net/bugs/1015211
Title:
Ubiquity installed grub-efi when it should have installed grub-pc
To manage notificatio
** Attachment added: "syslog and partman log files from the installer"
https://bugs.launchpad.net/bugs/1015211/+attachment/3196276/+files/installer-logs.7z
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