The tag has no wiki summary.

learn more… | top users | synonyms

0
votes
2answers
28 views

How Can I Get GRUB to Work After Restoring Deleted EFI Partition?

First time posting here for help. So Friday night I was playing around with GParted and accidentally deleted several partitions. One of the was an unnamed. After doing this, I restarted and I was ...
1
vote
0answers
90 views

Boot-repair error on dual boot system with Ubuntu 14.04 and Windows 7

I have a laptop with both Windows 7 and Ubuntu 14.04 installed. Both OS were installed on UEFI mode and are 64 bits. Ubuntu 14 was installed using the upgrade option from Ubuntu 13.10. After the ...
0
votes
1answer
121 views

Will BIOS boot mode Ubuntu install be able to boot when firmware “Fast Boot” is “Ultra Fast”?

I have an AsRock mainboard with UEFI BIOS P1.50 02/14/2014. The firmware "Fast Boot" option is set to "Fast", Boot Option #1 is set to "AHCI P4: OCZ-VERT...": this is BIOS not UEFI boot. This boot ...
0
votes
0answers
30 views

Problem understanding a grub.cfg line with search.fs_uuid

while learing and adjusting my boot setup, I am stuck unterstanding this content in my grub.cfg on the EFI patition of my drive: search.fs_uuid <uuid> root hd8,gpt5 set ...
0
votes
1answer
114 views

New bootloader for Ubuntu? [closed]

Challenging it is to get Ubuntu to boot right with single Ubuntu install since the introduction of (U)EFI BIOS. I have had, and am having difficulties getting a new PC boot to from an SSD disk. It ...
2
votes
1answer
1k views

How to change grub-bios to grub-efi

So a while ago I installed Ubuntu on my MacBook. I had to reinstall it because something in the update manager messed up. Not to concerned about that but for some reason after the installation Ubuntu ...
0
votes
0answers
34 views

live-build / lb config help needed

Hi I'm trying to build custom iso for my asus t100ta wich is uefi only My goal is to make it bootable grub-efi 32bit My question is how do I specify mainline kernel=>(3.16) and grub-efi bootable? ...
1
vote
0answers
23 views

How to boot Ubuntu automatically?

I am using Ubuntu GNOME 13.10. I have made one backup image with Clonezilla. The backup includes 2 partitions — one is /dev/sda1, where is the EFI (only the EFI folder from /boot/efi/EFI), and the ...
1
vote
0answers
108 views

How to install ubuntu 14.04 on my Mac Pro 1,1 with a raw hard drive by a bootable USB stick

I have a Mac Pro 1,1 and I replaced the original hard drive with a new 3TB hard drive (just got, never initialized). I try to install ubuntu by a bootable USB stick which I crated on my Mac When I ...
0
votes
0answers
50 views

ubuntu wont boot wont mount

I am new to linux, my computer says: an error occurred while mounting /boot/efi press s to skip mounting or m for manual recovery I search how to fix this everything I found had to do with dual ...
0
votes
1answer
129 views

Can not boot Windows on Legacy BIOS after installing Ubuntu on UEFI [duplicate]

Long story short, I installed ubuntu while I was watching netflix and feeling very lazy, and may have lost all my windows 7 files. Quick summary: -Windows 7 was installed on Legacy bios and I ...
0
votes
1answer
213 views

manually installung Grub2 after Windows8.1 update 1

After boot-repair failed to install (both with secure boot disabled and enabled), I decided to try running grub-install manually using the following command. sudo grub-install ...
0
votes
0answers
408 views

Make a portable Ubuntu on a USB stick (bootable on Macbook/iMac)

I have a Macbook Pro 8,1 (early 2011 model). My goal is to have Ubuntu installed onto a USB stick what I can plug into any Macbook / iMac (also potentially any pc) and use Ubuntu anywhere. Here is ...
0
votes
1answer
197 views

grub rescue, blind mode

i updated osx last night and when i try to boot to linux, i get sent to the grub rescue prompt. i have performed the following steps: set prefix=(hd1,gpt5)/boot/grub (contains grub.cfg but mod ...
0
votes
2answers
99 views

GRUB not appearing after upgrade to Windows 8.1 [duplicate]

I had previously dual-booted Ubuntu 13.10 with Windows 8. Then I upgraded it to Windows 8.1. Since then my GRUB has not been appearing. I started Ubuntu from my bootable USB drive and ran boot repair. ...
0
votes
2answers
505 views

Installing Ubuntu 14.04 on macbook pro EFI

Macbook pro: mavericks, 5.2, graphics: nvidia geforce 9600M I followed the guides from here: https://help.ubuntu.com/community/UEFIBooting#Detect_.28U.29EFI_firmware_processor_architecture and ...
2
votes
1answer
638 views

Laptop that comes with Windows 8 does not show grub

I have a Sony Vaio SVE14A27CXH that came with Windows 8 and UEFI BIOS from factory. I have been trying to install Ubuntu 13.01 with no success. I have already suffered with "Operating System not ...
0
votes
1answer
68 views

How do I tell GRUB to ignore other bootloaders?

I want to keep my bootloaders separately and I am wondering how to tell GRUB not to add the Windows bootloader on kernel/grub updates. I am using 14.04 and Win 8.1 on UEFI. Thank you!
0
votes
1answer
91 views

Laptop not booting

I've got a Vaio laptop that used to work with 13.10. I did an upgrade to 14.04 and since then it does not want to boot any more, that is it doesn't seem to reach grub: I'm stuck on a "BIOS" screen ...
0
votes
1answer
94 views

Boot XP from secondary HDD using GRUB2 on primary HDD

I have a computer with one HDD that has Ubuntu 14.04 as the only OS and GRUB2 on the same disk (hd0/sata0). Its partitions are: sda1 - ext4 primary sda2 - swap area sda3 - NTFS I found an old HDD ...
0
votes
0answers
123 views

How to configure and run mdadm RAID with /boot and /boot/efi

I am finally getting around to setting up RAID on my existing Ubuntu 12.04 box. This is my first time with mdadm and I have read several tutorials and I believe I have the basics of the RAID part ...
0
votes
2answers
105 views

Grub Won't Even Come Up after Upgrade to 14.04 Dual Boot Win8 [duplicate]

I'm a bit of a noob, so bare with me here. I'm running a Toshiba Qosmio V1.32002. I have had a dual booted Win8/Ubuntu 13.10 traditionally, and I recently upgraded to 14.04. Now when I start my ...
0
votes
2answers
3k views

Unable to fix broken package system

After I (painfully) managed to install Skype on my Ubuntu 12.04 LTS, I'm experiencing since months ago a packages issue I cannot fix. Have a look to my last post in order to know what caused this ...
0
votes
1answer
823 views

How to boot Windows 8 from a legacy MBR partition in UEFI mode via GRUB?

This question is similar to the answer of Dual-boot Ubuntu 12.10 on UEFI along Windows 8 (GRUB - error: can't find command drivemap), but Windows 8 is installed on a legacy partitioned drive. ...
1
vote
1answer
1k views

Boot from USB w/ Grub2… computer is useless right now… help!!!

I'm running Ubuntu 12.04 on my MacBook Air, and after a botched update attempt the OS won't boot & recovery mode won't boot. The only thing I can do is drop into the Grub2 prompt. I have a USB ...
1
vote
1answer
272 views

Windows 8 / Ubuntu 13.10 in dual boot - how to make Grub by default to manage it [duplicate]

good afternoon every. as it's said in the title, I have Windows 8 and Ubuntu on my laptop (EFI) and it boots automatically on Windows 8. To boot on Ubuntu, I have to change the boot order with the F9 ...
1
vote
0answers
138 views

Failed to boot Windows 7 after installing Ubuntu 12.04, invalid EFI file path

First I installed Windows 7 64-bit ,then I installed Ubuntu 12.04 64-bit. When installing Ubuntu, I found my BIOS was UEFI, so I installed Ubuntu like this: https://help.ubuntu.com/community/UEFI ...
1
vote
3answers
8k views

How to install Ubuntu server with UEFI and RAID1 + LVM

I used to install my servers with LVM over software RAID1, and grub install on the MBR of both drives. Now I have an UEFI server, and the compatibility (BIOS) mode does not seem to work. So I went ...
0
votes
1answer
78 views

Cannot boot into ubuntu after repartitioning

Having successfully dual-booted my system, I decided to attempt to triple-boot Kali-Linux (legacy), Windows 8 (UEFI), and Ubuntu 13.10 (UEFI). I freed up some disk space (5 gb if I remember correctly) ...
0
votes
1answer
146 views

Ubuntu 13.10 won't restart unless Windows 8.1 is first started and then shutdown

This is very strange. I have an Ubuntu 13.10/Windows 8.1 dual boot set up on my Asus N56VZ laptop. After shutting down Ubuntu, I can't restart it unless I first start and shutdown Windows 8. I'm not ...
3
votes
2answers
1k views

Missing /etc/default/grub

I just re-installed Ubuntu 12.10 after having various issues, it was just time for a re-format and re-install. Installation The install went the smoothest that it has ever gone. Except that on my ...
1
vote
0answers
1k views

Update grub-efi-amd64 on 14.04 [closed]

Can't update grub-efi-amd64 package on MacBook Pro Retina 13 early 2013. Got the next output: Setting up grub-efi-amd64 (2.02~beta2-6) ... Installing for x86_64-efi platform. grub-install: error: ...
0
votes
1answer
113 views

How to install grub on this system

I have two Hard disk drives, as shown in the screenshot First HDD (Sda) is a MBR Disk and second HDD (Sdb) is a GPT Disk (Which has windows 8.1x64). I have installed ubuntu on Sda4 disk and ...
2
votes
3answers
12k views

ubuntu 12.04.3 LTS installation failed. says: “GRUB installation failed”

The error maessage read as-"the grub-efi-amd64-signed package failed to install into /target/. Without the GRUB bootloader the system will not load" I'm trying to install it on HP pavilion g6-2303 TX ...
2
votes
2answers
802 views

Windows 8.1 - unfixable grub

I have a Gigabyte laptop that came with secure boot and windows 8. After a bit of battling, I managed to get my dual boot with Ubuntu 13.10.. Anyway, I upgraded zindows to 8.1, now grub is gone. I ...
2
votes
1answer
134 views

How to install Windows 8.1 after Ubuntu? I want to dual boot

I currently have Ubuntu installed and an empty partition to install windows in (NTFS). If I launch boot repair after installing windows , will it restore the dual boot functionality?
0
votes
0answers
4k views

How to install grub bootloader over windows 7?

My Windows 7 is working on different partition and my Ubuntu 12.04 exists in another partition which is unable to boot on startup. I want Windows 7 and Ubuntu to boot separately.
0
votes
3answers
1k views

13.10 doesn't boot on Vaio Pro 13

I just installed Ubuntu 13.10 on my new Vaio Pro 13, disabled safe mode, but used UEFI and not legacy mode. I did an encrypted LVM installation and erased the complete SSD. It booted just fine from ...
0
votes
1answer
390 views

Ubuntu EFI boot partition and Windows 8.1

I installed on my laptop Windows 8.1 without SecureBoot. After that I installed Ubuntu 13.10 and created partion /boot/efi and now laptop starts only ubuntu. How can I change grub settings to choose ...
0
votes
3answers
182 views

Unable to boot on windows after installing ubunu

I just intalled ubuntu(the real one) and now i am unable to run on my previous win7. As far as i know I didn't overwrite the windows partition. If I try to launch windows it breaks down directly(with ...
0
votes
1answer
573 views

How to insert linuxefi module during boot

I am running Ubuntu 13.10 with kernel 3.11.0-14-generic. Everything was working fine, but then I did a routine software update and the computer would then not boot. Unfortunately, I'm not sure what ...
2
votes
1answer
238 views

How to return from grub prompt to the grub menu?

If you press escape in grub menu you endup with grub command prompt. My question is how can I go back to the menu, without rebooting?
0
votes
1answer
4k views

Restore backup of WinEFI or UEFI (not sure) that boot-repair made

I have a laptop that supports EFI/UEFI. I have Windows 8.1 and Ubuntu 12.04 on it. The way I installed my OSes was like this: I installed Win 8.1 in the required partitions then Installed ubuntu and ...
0
votes
1answer
1k views

Dual boot problem, black screen during the ubuntu boot

I have a problem with my dual boot (windows 8 and ubuntu 13.1) on my asus vivo book. Actually I'm writing from a live of linux-secure-remix and I already used the boot repair tools. I can access and ...
16
votes
2answers
47k views

How can I change/convert a Ubuntu MBR drive to a GPT, and make Ubuntu boot from EFI?

I recently have upgraded my PC, my new Motherboard (ASUS M5A99X EVO) uses UEFi instead of the regular MBR option. I have a Ubuntu 11.10 installation that I did when I had my previous hardware (MSI MS ...
1
vote
1answer
776 views

Unable to boot to Ubuntu

Just got a new laptop and removed Windows 8 and installed 13.10 using LiveUSB. Initially it was booting to "No boot media" but I was able to resolve it with boot-repair. I realized some of the items I ...
0
votes
1answer
184 views

fix the partition indexes OR fix ubuntu EFI

I have a GPT partition table. when i tried to repair the disk on my mac os x 10.9 it deleted the efi partition. I already created it manually but i have a problem: 1- the efi partition instead of ...
0
votes
1answer
406 views

How to repair GRUB from backup?

I have Windows 8 and Ubuntu 13.04 in dualboot. But the problem was that Windows didn't boot when GRUB is set as primary bootloader in BIOS. When the Windows EFI partition was checked as primary, ...
0
votes
2answers
2k views

Deleting GRUB2 which is placed in sda? And how to fix two Ubuntu entry in EFI Boot selector?

I have EFI Windows 8 in my Asus K55V laptop. EFI partition is sda1. I tried to install Ubuntu in EFI mode and created/selected separate boot partition for Ubuntu boot loader. Ubuntu installed ...
3
votes
1answer
108 views

Is there anything to remember when I exchange my /?

I have a laptop computer with the following setup: / on a btrfs /dev/sda3 subvolume @ /home on a btrfs /dev/sda3 subvolume @home /boot on an ext4 /dev/sda2 /boot/efi on a vfat /dev/sda1 no swap /tmp ...