Le 05/06/2013 18:59, Andrey Borzenkov a écrit :
В Tue, 04 Jun 2013 23:16:05 +0200
Pascal COMBES <[email protected]> пишет:
Hello everyone,
I would want to submit you a problem I encountered when trying to
install Ubuntu (on sda6) after having installed Windows 7 on a logical
partition (sda5). Before the installation of Ubuntu, Windows 7 was on
its logical partition (sda5) and it worked well. A detail : When
installing Ubuntu, I put Grub on a separate boot partition (sda3).
I tried to reconfigure Grub so that it boots either Ubuntu or
Windows seven with :
menuentry "Windows 7" {
insmod ntfs
insmod chain
not directly related but you do not need "insmod ntfs" here
set root = (hd0,5)
chainloader +1
}
but it didn't work : Ubuntu boots without any problem but Windows don't.
So I tested with the search function :
menuentry "Windows 7" {
insmod ntfs
insmod chain
no here
search --no-floppy --fs-uuid --set=root ${UUID_OF_MY_DISK}
chainloader +1
}
and it again didn't work same problem. Notice I got the UUID with sudo
blkid /dev/sda5.
The error message was :
Erreur lecture disque
which means "Error reading disk". As this is in French I guess that it
is a message from Windows, isn't it?
I read a little bit on the Internet and I found some posts that I
think said it was possible but other pretend it isn't. But none of them
were very clear. So, I don't know what to think that is why I'm asking :
/Can grub chainload Wi//ndows when windows is installed on a logical
partition? /If this is possible, may you give me some hints on why I
didn't manage to set it up? Otherwise, I will change my partition table
and reinstall everything in a different manner (by the way can you
confirm to me that grub can be installed in a logical partition?)
I give you my partition table :
primary /dev/sda1 (Dell stuff I cannot delete because of guarantee)
primary /dev/sda2 (Dell stuff I cannot delete because of guarantee)/
/primary /dev/sda3 (boot partition where grub is installed)
logical /dex/sda5 (Windows 7)
I do not think Windows can boot from logical partition. So I suspect
Windows bootloader is actually installed on either sda1 or sda2.
Could you try running "os-prober" from Ubuntu - may be it finds Windows
loader for you? You could also try bootinfoscript to check what it
find about various loaders on your disk.
Hello,
You are right. I just looked at the contents of the partition /dev/sda1
(I can read it with Ubuntu) and I saw that some files appeared. I think
the explantion of this miracle is the following : As everybody says,
Windows bootloader must be installed on a primary partition. However you
can easily install Windows on another partition. In this case during the
installation process it creates a boot sector in another partition. But
it didn't warn you of what he has done. I hope it didn't crash any Dell
files. I will have a check.
Thank you very much. Best regards,
Pascal.
logical /dev/sda6 (Ubuntu)
and some other (for data and swap) but I don't think you need them.
I thank you in advance for you response and please you to excuse my
bad English. Best regards,
Pascal COMBES
_______________________________________________
Help-grub mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/help-grub
_______________________________________________
Help-grub mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/help-grub
