All Questions
27 questions
-1
votes
1
answer
40
views
iMac can‘t boot OS X, neither install Ubuntu from Bootstick
I bought an old iMac from 2010 off eBay in Germany as broken and thought about restoring it.
After a Bit of troubleshooting I found out that it wasn‘t a Hardware Problem.
I found grub as I started the ...
- 11
0
votes
0
answers
75
views
Modify grub setting ina live cd->/etc/defalt/grub doesn't exist and I have a nearly black screen just grub is written and freezed on a macbookpro 2009
I would like how, for exemple, give the nomodeset parameter to grub in a live cd configuration. The only file I found is /boot/grub.cfg and the presentation of the file is not the same as in a normal ...
0
votes
2
answers
382
views
Ubuntu 16.04 has taken over iMac - was dual-boot
I've been unable to find this problem anywhere and hope someone can help.
I did a dual install of Ubuntu 16.04 and OS X El Capitan on an 2009 iMac (9,1). I installed rEFInd, too. rEFInd showed up ...
- 11
1
vote
0
answers
82
views
Automatically boot Grub into OSX
Is there a way to boot automatically into OSX, bypassing the GRUB menu in Ubuntu 16? Currently when I boot up, the screen looks something like
Boot into Ubuntu 16.04
Boot into Mac OSX El Capitan
...
- 111
1
vote
1
answer
6k
views
Triple Boot (Windows 10, Ubuntu 16.04, OS X 10.11)
have a Lenovo Laptop, the ideapad z710, it has a
Intel Core i7-4710MQ
NVIDIA GeForce 840M/2GB
16GB Ram
1TB SSHD
and I want to install Ubuntu which I use as my main OS and beside that Windows 10 and ...
- 55
9
votes
4
answers
54k
views
Add grub menu for OS X
I installed Ubuntu 16.04 Desktop on my MacBook Pro, and cannot boot OS X now. My disk partition table is:
Device Start End Sectors Size Type
/dev/sda1 40 409639 409600 ...
user537574
0
votes
4
answers
778
views
Problem start up dual boot Linux and Mac OSX El Capitan
After a long work I successfully installed dual boot Linux (Bio linux 8) on a macbook Pro with Mac OSX El Capitan.
First of all I installed reFIND on mac and this helpful utility give me the ...
- 1
8
votes
1
answer
12k
views
Unable to chainload OS X Clover bootloader from GRUB
So I have a triple-boot setup in which I have just updated OS X (Hackintosh) to the newest version and a new bootloader (from Chimera to Clover). It looks something like this:
Ubuntu 14.04 LTS on /...
- 83
1
vote
3
answers
3k
views
`invalid signature` when trying to boot OSX's CLOVERX64.efi from GRUB
I’m trying to create a multiple boot situation using grub2. Please forgive me as I am fairly new at this. However, I feel like I am fairly close I am just missing the ability to boot from an EFI ...
- 13
2
votes
2
answers
23k
views
How do I get Grub2 to boot into OS X?
I removed everything on my MacBook Pro, partitioned it into several small partitions, and installed Ubuntu, Windows and OS X. Grub2 sees my Windows and Ubuntu installs, but OS X doesn't show up in the ...
1
vote
1
answer
3k
views
Can't get Ubuntu to boot from EFI in Mac
I am trying to get an old ca. 2006 macbook (technical specs here) to boot Ubuntu 14.04.2 LTS. I'm on day two of this now, having wiped the hard drive numerous times and reinstalled from the disk ...
- 31
1
vote
2
answers
8k
views
Brand new to Ubuntu - can't get into recovery mode
After a mistake, I changed my password but can't remember it now.
I've found out that you can reset it by going into recovery mode, but I can't seem to get there! I have Ubuntu 14.04.2 running ...
- 23
3
votes
0
answers
745
views
GRUB on my OS X (Hackintosh) disk after uninstalling Ubuntu
I have a Hackintosh with 3 SSDs, each with a different OS on it (OS X 10.10, Windows 7, Ubuntu 14).
The problem is that I originally tried installing Ubuntu on the same SSD as the OS X drive AND I ...
- 371
2
votes
1
answer
2k
views
efibootmgr cannot launch OSX yosemite (only showing folder image with question mark)
I have a macbook pro with freshly installed yosemite (100 GB) and freshly installed Ubuntu. To boot I use efibootmgr. My partition layout is:
/dev/sda1 40 409639 409600 200M EFI ...
- 362
3
votes
0
answers
1k
views
iMac will not boot OS X after installing Ubuntu
I installed Ubuntu alongside Mac OS X on my iMac, following HowToGeek's tutorial.
Whenever I boot, I get GRUB with the following options:
Ubuntu
Advanced Options for Ubuntu
Mac OS X 32-bit
Mac OS X ...
1
vote
1
answer
442
views
Can't boot into UBUNTU, after Yosemite install
I have posted on here as a last resort as I have searched for a solution and haven't been able to find one.
I recently installed OS X Yosemite on my mac. Since then I have not been able to gain ...
- 111
0
votes
1
answer
238
views
osx download from GRUB
Ok so I just installed Ubuntu onto my mac, but I pressed the wrong button and deleted osx. I have the original boot disk that I used years ago on it, but after messing around on the GRUB for a bit, ...
2
votes
2
answers
1k
views
Booting multiple operating systems, does install order matter?
I'm moving my computer from a dual boot (Windows 7, Ubuntu 14.04) to a triple boot (Windows 7, Ubuntu 14.04, Mac OS X 10.9). I currently use Grub to start up my computer into either Windows or Ubuntu. ...
- 23
12
votes
2
answers
34k
views
Graphical GRUB Menu
As you know, when dual booting on OSX you get a nice looking boot menu, something like:
(source: askdavetaylor.com)
I was curious as to whether there is a way to replace the textual interface of GRUB ...
- 437
1
vote
2
answers
2k
views
Skipping rEFInd menu after Option+Command+P+R and going straight to grub
I used Option+Command+P+R to try and fix a sleep issue in OSX. From there I'm a little confused about what happened but I ended up in a mac recovery mode (offering to reinstall OSX), which I tried to ...
- 45
0
votes
1
answer
2k
views
Triple boot OSX, Win7, Linux - broke my Win 7 install [closed]
Note, this is not really an Ubuntu question but I expect there are lots of smart Linux gurus here that may know the answer - so please excuse my posting here:
I'm desperately needing help: I've had a ...
- 31
0
votes
1
answer
4k
views
GRUB 2 problem after Mac OS X update
I have a MacBook Pro in dual boot Mac OS X / Ubuntu 12.04 (Precise Pangolin).
When I boot it I have a rEFIt menu, and I can chose between Mac OS X and Linux.
A few days ago I have ...
- 155
7
votes
3
answers
22k
views
Mac OSX update broke booting Ubuntu
I have a mac that is running a dual boot with OSX and Ubuntu. I am using rEFIT. I just updated my OSX to the new OSX Mavericks, but when i restarted my computer and tried to enter Ubuntu from rEFIT I ...
- 173
0
votes
2
answers
1k
views
Black Screen on Macbook Pro 6,2 After Installing 12.04LTS - Tried Everything Already
I am tri-booting Mac OS 10.6.8 (Snow Leopard), Windows 8, and Ubuntu. I installed via a USB drive. The install and the LiveCD trial went flawlessly, and I can boot into GRUB. However, as soon as I ...
- 101
0
votes
1
answer
247
views
Ubuntu on Mac cannot locate via OSX or boot it throught rEFIt...
... it comes up with Operating system not found. What do i do?
I recently installed Ubuntu along side OS X (Snow Leopard) and when I rebooted my macbook and choose Ubuntu, I got a message saying ...
5
votes
5
answers
12k
views
Ubuntu installed GRUB over rEFIt
I had my Mac set up with rEFIt and installed Ubuntu 13.04, unfortunately GRUB was installed over rEFIt. I was not expecting this and have since found out that I have no idea where my installation disk ...
- 231
1
vote
1
answer
8k
views
Unable to boot OS X after installing Ubuntu 12.04
I installed Ubuntu 12.04 on my MB (aluminium late 2008). After installing Ubuntu I am unable to boot into OS X.
Sequence of events:
Install reFit on OS X
Install Ubuntu on a partitioned drive. I ...
- 11