Dual Boot Ubuntu + Windows 8

[oldfred]

When you say you backed up boot, was that the efi partition?

The msr partition may not have anything in it. It is unformatted space where Windows virus checkers or DRM software may write serial numbers. Still probably a good idea to backup.

I would not delete any partitions. Some systems need them and you currently do not need the extra space.

If installing in UEFI mode grub should auto install to the efi partition. I think it still shows choices. But if in BIOS mode you still install to sda.

[c.pfarher]

- yes... backed up boot is /sda2 in the attachment image of my post (fat32) and is the efi partition ...
- Now, I trying to do the backup with clonezilla, because I use Macrium reflect but that software has a 30 trial period......
- Then I will do the installation of ubuntu...!
Thank you...

[c.pfarher]

Oldfred you said me: ¨You will need Boot-Repair to fix the grub issue on chain loading. You should install in UEFI mode, but Boot-Repair will convert a BIOS install to UEFI by unintalling grub-pc and installing grub-efi.¨ ...

What option in boot repair I need to execute for fix it?
Thank you

[oldfred]

I believe it is in advanced options, but it may depend on how you booted live installer to run it.

How Boot-Repair works with UEFI systems - post 687 Dec 15, 2012
http://ubuntuforums.org/showthread.p...769482&page=69
How Boot-Repair fixes a Ubuntu with grub-pc with efi Windows
http://ubuntuforums.org/showpost.php...&postcount=516
Boot-Repair - Updated Jan 1, 2013 to not rename first time, but rename if first time Windows does not boot. Post 706
http://ubuntuforums.org/showthread.p...769482&page=71


grub-update fails to detect windows bootloader on a uefi system
https://bugs.launchpad.net/ubuntu/+s...b2/+bug/807801
grub2's os-prober creates wrong style (BIOS) chain boot entry
https://bugs.launchpad.net/ubuntu/+s...2/+bug/1024383
Type of entry that does not work:
'Windows ...) (on /dev/sdXY)'


If you do not want the incorrect entries until grub fixes os-prober, you can just turn it off.
Grub 2 Title Tweaks Thread -drs305
http://ubuntuforums.org/showthread.php?t=1287602
In /etc/default/grub I added this:
gksudo gedit /etc/default/grub
GRUB_DISABLE_OS_PROBER=true
or turn off executeable bit
sudo chmod a-x /etc/grub.d/30_os-prober

[c.pfarher]

Oldfred one more question.... I downloaded ubuntu secure remix 12.10 64 bits, because ubuntu doesn´t recognize my ethernet and wireless cards, and then I don´t have internet if I need to use boot-repair
When I boot an try to install, in type of instalation, ubuntu don´t detect an operating system (although it was installed windows8), this is normal?,,, I don´t know if I proceed with the instalation or not? I have 4 options:
1- Erase disk an install ubuntu
2- Encrypt the new Ubuntu installation for security
3- Use LVM with the new Ubuntu Installation
4- Something else

I think I need to select the 4 and create / and /home .. but I think it is properly to confir that is a normal situation that it doesn´t detect windows 8...
Thank You

[oldfred]

Ubuntu almost always works with Ethernet. But often not with wireless as there are so many drivers they all are not on installer. You then should be able to download.
I so not know details, but there are one or two Ethernet chips that have to have downloads to work.
What Ethernet chip/card do you have?

Is this system an Intel SRT with small SSD? That uses RAID that is not on desktop install. Other issues can be that Windows needs chkdsk, it still hibernated (Which Windows 8 does by default for fast boot) or you created partitions with Windows and converted to dynamic partitions.

[c.pfarher]

It is a Toshiba S855-S5378 (It hasn´t SRT system).

This are the hardware:
* Ethernet Controller: Atheros AR8161 Gigabit ethernet (rev10), and * Realtek Semiconductor co. Ltd. Device 8723 (wireless).
opened a thread last weak: http://ubuntuforums.org/showthread.php?t=2115725

I follow this step after boot with ubuntu live cd:
1- I configured windows 8 for normal boot (as same in the bios), and I desactivated Secure Boot.
2- I used windows for shrink the System drive in order to do space for Ubuntu.
3- In the Bios I have an option to change UEFI boot to Legacy mode, but I understand that UEFI is the correct in my case. Then, I don´t change to Legacy. Right?

[oldfred]

You want to install in UEFI if at all possible but some systems will not let you. Also some Toshibas have issues.

Samsung, Lenovo & Toshiba UEFI issues
http://mjg59.dreamwidth.org/22028.html

Some Toshiba's will not boot.
they managed to leave the signing key out of the database that's used to validate binaries

But some are able to install in Toshiba
[SOLVED] Can't install Windows 8 & Ubuntu in Toshiba Portege Z930 with explanation how by OP feb 2013
http://ubuntuforums.org/showthread.php?t=2114290

[c.pfarher]

I don´t have problem to boot the live cd in uefi mode with live cd of ubuntu remix 12.10 or ubuntu 12.10... But It isn´t detect windows... I don´t know If is safe to following with the installation ;|

Are there a way to put the ethernet card to work in live cd?? or maybe a Ubuntu CD with backports drivers?

Thank You.

[oldfred]

I think you need to resolve Ethernet issue as you need that to install easily and especially with UEFI to make fixes and updates.

Either search forum based on your chip or start a thread on that issue posting what chip you have.

Using Google is often better than the forums search function.
Just append site:ubuntuforums.org to your search term
http://www.googlubuntu.com/


Someone posted this:
lspci > ~/abs-network.txt
lsusb >> ~/abs-network.txt
ifconfig >> ~/abs-network.txt
iwconfig >> ~/abs-network.txt
Now post this in a new thread, and attach (via the paperclip) the abs-network.txt file which will be in your home folder.

But all my Ethernet has just worked so I have not followed the specific issues.