HOWTO: Sony Vaio Pro 13 DualBoot (Win 8 + Ubuntu Trusty 14.04) SecureBoot Wifi LVM

[jade2]

oh right but now there is another problem.. in between i followed another forum post which tells to do:

sudo mount -t vfat /dev/sda3 /mnt
sudo cp /mnt/EFI/Boot/bootx64.efi /mnt/EFI/Boot/bootx64.efi.bkp
sudo cp /mnt/EFI/Microsoft/Boot/bootmgfw.efi /mnt/EFI/Microsoftsudo cp /mnt/EFI/ubuntu/grubx64.efi /mnt/EFI/Boot/bootx64.efi
sudo cp /mnt/EFI/ubuntu/grubx64.efi /mnt/EFI/MicrosoftBoot/bootmgfw.efi

but the last line caused another error, so i wanted to forget about that way .. now when i want to try again "mount /dev/sda3 /mnt, i receive the error:

mount: /dev/sda3 already mounted or /mnt busy
mount: according to mtab, /dev/sda3 is already mounted on /mnt
how can i undo the comands of before to fix that :O


update:
after a restart (with nothing doing something new in between) there was a boot menu (yay) but some apps in win8 doesn't appear right - is that now a bad sign that windows got affected deeper any whereelse too?
Also when trying to boot linux, it needs a lot of time, which ends in giving up, see here:

https://www.dropbox.com/s/xe2cutyykz...5c9eb.jpg?dl=0

[grainbarcelona]

Vargax is my hero!

a year ago this post showed me how to get Ubuntu going on my Vaio Pro with the bcdedit fix (#1). A week ago it suddenly stopped working and my computer started booting directly into Wiindows again. I go back to his original post and see that the follow up answer is already waiting for me (#11). It worked like a dream & I'm back onto Ubuntu. Thanks Vargax!

By the way, for those of you who find themselves suddenly without a grub screen: "Supergrub2 Disk" worked very well for me. Burn it to a USB stick, boot from it & it'll find and boot any operating system on your computer.

[snowman3]

I followed all the given steps. I have a Vaio Duo 11 and everything is fine: There is the GRUB2 and the entries for ubuntu and Windows Boot Manager (on /dev/sda2). But when I choose booting windows it sais:

Failure: File >>/EFI/Microsoft/Boot/bootmgfw_win.efi was not found.

Then I checked the files in the Boot-Partition and the result is this:

root@myconvertible:/mnt/EFI/Microsoft/Boot# ls -la
insgesamt 8313
drwxr-xr-x 40 root root 4096 Jun 15 15:50 .
drwxr-xr-x 3 root root 1024 Jun 15 13:13 ..
-rwxr-xr-x 1 root root 32768 Jun 15 15:45 BCD
-rwxr-xr-x 1 root root 28672 Jun 15 13:13 BCD.LOG
-rwxr-xr-x 1 root root 0 Jun 15 13:17 BCD.LOG1
-rwxr-xr-x 1 root root 0 Jun 15 13:17 BCD.LOG2
drwxr-xr-x 2 root root 1024 Jun 15 13:17 bg-BG
-rwxr-xr-x 1 root root 1355736 Jun 15 15:49 bootmgfw.efi
-rwxr-xr-x 1 root root 1615712 Aug 22 2013 bootmgfw_win.efi
-rwxr-xr-x 1 root root 1612128 Aug 22 2013 bootmgr.efi
-rwxr-xr-x 1 root root 65536 Jun 15 13:17 BOOTSTAT.DAT
-rwxr-xr-x 1 root root 4247 Jun 18 2013 boot.stl
-rwxr-xr-x 1 root root 119296 Jun 15 14:23 bootx64.efi
drwxr-xr-x 2 root root 1024 Jun 15 13:17 cs-CZ
drwxr-xr-x 2 root root 1024 Jun 15 13:17 da-DK
drwxr-xr-x 2 root root 1024 Jun 15 13:17 de-DE
drwxr-xr-x 2 root root 1024 Jun 15 13:17 el-GR
drwxr-xr-x 2 root root 1024 Jun 15 13:17 en-GB
drwxr-xr-x 2 root root 1024 Jun 15 13:17 en-US
drwxr-xr-x 2 root root 1024 Jun 15 13:17 es-ES
drwxr-xr-x 2 root root 1024 Jun 15 13:17 et-EE
drwxr-xr-x 2 root root 1024 Jun 15 13:17 fi-FI
drwxr-xr-x 2 root root 2048 Jun 15 13:17 Fonts
drwxr-xr-x 2 root root 1024 Jun 15 13:17 fr-FR
-rwxr-xr-x 1 root root 121 Jun 15 15:49 grub.cfg
-rwxr-xr-x 1 root root 956792 Jun 15 15:49 grubx64.efi
drwxr-xr-x 2 root root 1024 Jun 15 13:17 hr-HR
drwxr-xr-x 2 root root 1024 Jun 15 13:17 hu-HU
drwxr-xr-x 2 root root 1024 Jun 15 13:17 it-IT
drwxr-xr-x 2 root root 1024 Jun 15 13:17 ja-JP
drwxr-xr-x 2 root root 1024 Jun 15 13:17 ko-KR
drwxr-xr-x 2 root root 1024 Jun 15 13:17 lt-LT
drwxr-xr-x 2 root root 1024 Jun 15 13:17 lv-LV
-rwxr-xr-x 1 root root 1493344 Aug 22 2013 memtest.efi
-rwxr-xr-x 1 root root 1178240 Jun 15 15:49 MokManager.efi
drwxr-xr-x 2 root root 1024 Jun 15 13:17 nb-NO
drwxr-xr-x 2 root root 1024 Jun 15 13:17 nl-NL
drwxr-xr-x 2 root root 1024 Jun 15 13:17 pl-PL
drwxr-xr-x 2 root root 1024 Jun 15 13:17 pt-BR
drwxr-xr-x 2 root root 1024 Jun 15 13:17 pt-PT
drwxr-xr-x 2 root root 1024 Jun 15 13:17 qps-ploc
drwxr-xr-x 3 root root 1024 Jun 15 13:17 Resources
drwxr-xr-x 2 root root 1024 Jun 15 13:17 ro-RO
drwxr-xr-x 2 root root 1024 Jun 15 13:17 ru-RU
drwxr-xr-x 2 root root 1024 Jun 15 13:17 sk-SK
drwxr-xr-x 2 root root 1024 Jun 15 13:17 sl-SI
drwxr-xr-x 2 root root 1024 Jun 15 13:17 sr-Latn-CS
drwxr-xr-x 2 root root 1024 Jun 15 13:17 sr-Latn-RS
drwxr-xr-x 2 root root 1024 Jun 15 13:17 sv-SE
drwxr-xr-x 2 root root 1024 Jun 15 13:17 tr-TR
drwxr-xr-x 2 root root 1024 Jun 15 13:17 uk-UA
drwxr-xr-x 2 root root 1024 Jun 15 13:17 zh-CN
drwxr-xr-x 2 root root 1024 Jun 15 13:17 zh-HK
drwxr-xr-x 2 root root 1024 Jun 15 13:17 zh-TW
root@myconvertible:/mnt/EFI/Microsoft/Boot#

Obviously, the bootmgfw_win.efi exists. Why it is not found? This is my 40_custom file:

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
menuentry 'Windows Boot Manager (auf /dev/sda2)' --class windows --class os $menuentry_id_option 'osprober-efi-28A1-E5B1' {
    insmod part_gpt
    insmod fat
    set root='hd0,gpt2'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2  28A1-E5B1
    else
      search --no-floppy --fs-uuid --set=root 28A1-E5B1
    fi
    chainloader /EFI/Microsoft/Boot/bootmgfw_win.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi

[phaberest]

Oh well...I've followed all vargax directives and finally ubuntu works...but it's the only one, actually

After renaming the windows efi file grub is showing up on boot, but the update-grub has deleted the windows entry. How do I get it back?

***EDIT***
Ok, well... I ran update-grub again and it now works. Maybe it just didn't load the custom file