No more arobase after EFI installed on macbook

It's really strange my arobase key don't work anymore after the installation of EFI on my macbook.
Now i need to strike Alt+£ key in order to have this @
How can i use again my arobase keyboard key?
Thanks for your help

Try launching Ollie's Keys after extracting it from this download:
http://www.macupdate.com/download.php/14993/ollieskeys.zip
There you can see the actual character you are about to pick up when you do specific key combinations.

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Problem booting Arch after first install on MacBook Pro

Hi all,
I've spent the past month intermittently trying to install Arch on an old MacBook Pro with a broken screen running in clamshell mode (I've reformatted, clean installed OSX, and run pacstrap around 20 times now). I was originally trying to install Debian, but the Arch Wiki was so good that I switched. The issue has been the same anyway.
Every time I try to install, I get stuck at the bootloader stage, where I need to make the installation bootable. It doesn't matter what bootloader method I use, since I've tried:
Boot from /boot partition with GRUB
Boot from separate HFS+ GRUB partition
Boot from Apple EFI System Partition (ESP) with GRUB
Boot with rEFInd
Boot with rEFInd installed to the ESP
Arch itself works fine, but when I go to boot from rEFInd's autodetected vmlinuz-linux from 128MiB ext2 partition, I get the same error message I've gotten with every other configuration:
:: running early hook [udev]
:: running hook [udev]
:: Triggering uevents...
[ 0.558033] uhci_hcd 0000:00:1a.0: Found HC with no IRQ. Check BIOS/PCI 0000:00:1a.0 setup!
[ 0.558097] uhci_hcd 0000:00:1a.0: init 0000:00:1a.0 fail, -19
[ 0.558135] uhci_hcd 0000:00:1a.0: Found HC with no IRQ. Check BIOS/PCI 0000:00:1d.0 setup!
[ 0.558189] uhci_hcd 0000:00:1a.0: init 0000:00:1b.0 fail, -19
Waiting 10 seconds for device /dev/disk/by-uuid/2b121a89-aeb9-430a-8e6c-a05b79f08427 ...
ERROR : device 'UUID=2b121a89-aeb9-430a-8e6c-a05b79f08427' not found. Skipping fsck.
ERROR: Unable to find root device 'UUID=2b121a89-aeb9-430a-8e6c-a05b79f08427'.
You are being dropped to a recovery shell
[etc.]
When the Arch .iso live CD boots, it gets the first uhci_hcd errors, and then just moves on with:
:: hook [memdisk]
:: hook [archiso]
[etc.]
Here are the contents of my refind.conf file (/boot/efi/ESP/refind/refind.conf) (I omit all the standard comments):
timeout 0
scan_all_linux_kernels
[The example menu entries - all disabled]
menuentry "Arch Linux" {
icon /EFI/refind/icons/os_arch.icns
"Arch Boot"
loader /vmlinuz-linux
initrd /initramfs-linux.img
options "root=/dev/sda7 rw rootfstype=ext4"
And my refind_linux.conf (/boot/refind-linux.conf):
"Boot with standard options" "ro root=2b121a89-aeb9-430a-8e6c-a05b79f08427"
"Boot to single-user mode" "ro root=2b121a89-aeb9-430a-8e6c-a05b79f08427 single"
"Boot with minimal options" "ro root=2b121a89-aeb9-430a-8e6c-a05b79f08427"
My custom menu entry for Arch doesn't work either (I'm still researching exactly why). I've been quite confused by different posts all over by different people on how to configure the manual refind.conf stanzas. I also tried a direct to root menu entry, where I tried the files as /boot/vmlinuz-linux, etc.
The error I always get here is the same:
Starting vmlinuz-linux
Using load options "[same as above]"
Invalid loader file!
Error: Not Found while loading vmlinuz-linux
I've installed GRUB as well, just to be sure. Although I haven't moved it to any other partitions or 'blessed' it in OS X. (I have blessed the HFS+/EFI partitions when I used GRUB.)
Just FYI, I've used the following pages as guides:
My primary guide: Cody Littlewood's installation procedure for a MacBook Pro
The Arch Wiki MacBook Page, which was useful but a bit confusing and self-referential on the Bootloader section
The rEFInd website, by Rod Smith. I've read it fairly extensively (including an interesting comparison of SodaStream flavours)
A Gentoo Wiki page with a rEFInd example
The LFS GRUB chapter, and surrounding material
And I've largely read the Arch Wiki Beginners' Guide, Bootloaders page, GRUB page, GRUB EFI examples page, UEFI page and EFI Stub Loader page.
There have been others, but it's been a while since I read them. I've been trying to make this work for a while.
I've also looked at some other posts on similar subjects:
A post on the Arch Linux subreddit matching my (previous; with GRUB) situation, but not fixing my problem
An Arch forum post, of which there have been others, but google seems to have changed my search results.
EFI-Booting Ubuntu on a Mac, by Rod Smith
The Debian MacBook Pro page
A post about booting Debian without rEFIt
Again, there are more, but I can't find them all just now.
I've looked EVERYWHERE for a solution.
My question is, does anyone have any ideas on how I might make my computer bootable?
Almost forgot; I've run
mkinitcpio -p linux
successfully (I get the two driver warnings that seem to be standard).
Computer specifications are as follows:
Model Identifier: MacBookPro6,2 (mid 2010)
Processor Name: Intel i7
Architecture: amd64
RAM: 4GB DDR3
Graphics: NVIDIA GeForce GT 330M 512MB
Software: OS X 10.9.2
My disk partition table is as follows:
$gdisk -l /dev/sda
GPT fdisk (gdisk) version 0.8.9
Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present
Fround valid GPT with protective MBR; using GPT.
Disk /dev/sda: 976773168 sectors, 465.8 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): C0ADB511-F73D-404A-B128-DD01509AE6EA
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 976773134
Partitions will be aligned on 8-sector boundaries
Total free space is 262150 sectors (128.0MiB)
Number Start (sector) End (sector) Size Code Name [Additional Info]
1 * * 200.0MiB EF00 EFI System Partition rEFInd currently installed here, mounts to /boot/efi
2 * * 185.8GiB AF00 OSX
3 * * 619.9MiB AB00 Recovery HD
4 * * 93.1GiB AF00 DMZ unjouranaled HFS+ shared partition
5 * * 4.0GiB 8200 Arch Swap
6 * * 128.0MiB 8300 Arch Boot ext2
7 * * 50.0GiB 8300 Arch Root ext4
8 * * 131.8GiB 8300 Arch Home ext4
And my fstab, made with genfstab after I mounted everything (except for the swap stanza, which I had to write):
# /etc/fstab: static file system information
# <file system> <dir> <type> <options> <dump> <pass>
# UUID=2b121a89-aeb9-430a-8e6c-a05b79f08427
/dev/sda7 / ext4 rw,relatime,data=ordered 0 1
# UUID=efb41f69-6f99-4c8b-8431-01f3cd22c9cc
/dev/sda6 /boot ext2 rw,relatime 0 2
# UUID=67E3-17ED LABEL=EFI
/dev/sda1 /boot/efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed, errors=remount-ro 0 2
# UUID=[another long UUID]
/dev/sda8 /home ext4 rw,relatime,data=ordered 0 2
# UUID=[another long UUID] LABEL=DMZ
/dev/sda4 /dmz hfsplus rw,relatime,unmask=22,uid=0,gid=0,nls=utf8 0 0
# UUID=[another long UUID]
/dev/sda5 swap swap defaults 0 0
Last edited by rjmh (2014-04-04 08:35:20)

henriqueleng wrote:
I don't know about Mac computers but i use a uefi motehrboard,
To install it i created a partition with 512MB and i mounted /boot on there. all the rest of system are normal.
I use gummiboot, i don't know if its stuff on Mac. I think that ou should try another bootloader!
And why do you mounted two point on /boot?
/boot and /boot/efi?
Are you sure you're using uefi, my fstab looks just like his with the boot and efi partition. I'm pretty sure that's how the wiki says to set it up. That's the fstab for a laptop with uefi if it helps you out. I had problems with grub btw, so I had to set up gummiboot
# /etc/fstab: static file system information
# <file system> <dir> <type> <options> <dump> <pass>
# /dev/sdb3
UUID=0c1c97a3-0472-4141-a756-a03c00a4a3cf / ext4 rw,relatime,data=ordered,discard 0 1
# /dev/sda3
UUID=8a4412fa-5d4b-4de4-91ff-a4d05b3705e1 /home ext4 rw,relatime,data=ordered 0 2
# /dev/sdb2
UUID=971ed3e8-394d-46b3-b0d4-e8bb86b267cf /boot ext4 rw,relatime,data=ordered,discard 0 2
# /dev/sdb1
UUID=095C-CB43 /boot/efi vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 2
# /dev/sda1
UUID=12a4a2b1-6338-495a-8a41-474653eb227b /var ext4 rw,relatime,data=ordered 0 2
# /dev/sda2
UUID=846803f1-3f5b-48ae-9945-37e9725011b2 none swap defaults 0 0

Performance reduced under Bootcamp after EFI update on Macbook Pro Retina

after i upgraded EFI on my retina macbook pro the proformence reduced to unusable. under heavy load under bootcamp windows7. the cpu clock drops and as well as cpu clock. this is the screen shot of gpu clock monitoring from windows u can see the gpu clock is running at 270Mhz at most of the time and trying to be back to 725Mhz(yea, not 900Mhz!) when im running a graphic benchmark at same time cpu will run about 1.1Ghz as well. i noticed that it will run 10-20sec normally then CPU and GPU clock will start dropping. It's almost like speedstep is programmed backwards. My CPU is constantly running at 3.1-3.2GHz, and then as soon as a game loads, it drops to 1.2GHz. I've lost track of how many times I reset the SMC reseting SMC PRAM, reinstalling windows using Bootcamp or even erease the entire drive and start over from network recovery MacOS did not solve this problem. so all the recent games like COD MW3, Starcraft II, BF3,or D3 will only run about about 10 fps as i was playing them with no ploblem before the EFI update.
this is killing me! please help.
im in NY, in this season i dont think is the overheating problem. when i check the temperature, it stays about 80C (fans will run about 4k rpm). but some time heavy loaded Mac OS cpu is about 90 degree but only with 3k rpm fan kicked in.
i did search online, seems that some other people have the same problem with rMBP or MBA 2012.
anyone knows if i take my macbook pro to the store, will those people work at genuines bar help me with this "windows" problem?
thanks!

Hey Shadowyani, please take a time and fill a bug report at http://developer.apple.com/bugreporter/ . The machine is useless for me as it is now because I develop and use very GPU/CPU demanding scientific applications, after the update my realtime applications are completely useless as they drop from something like 25fps to 9 fps even on Mac OS X (no SMC reset fixed the issue). In bootcamp the situation is worse, my software runs at 4 fps and gaming turns to be impossible to play as well.
Please let Apple know about the problem, fill a bug report, even if SMC reset once in a while fixed the issue for you (this is not a common behaviour and must be fixed). We paid the price for cutting edge technology.
Apple shall not do a downgrade of the system after few weeks, remember that most of reviews and benchmarks were done BEFORE the EFI Update, so people are being fooled by Apple in this sense.

Performance reduced after EFI update on Macbook Pro Retina

after i upgraded EFI on my retina macbook pro the proformence reduced to unusable. under heavy load( under mac os or windows7) the cpu clock drops and as well as cpu clock. this is the screen shot of gpu clock monitoring from windows u can see the gpu clock is running at 270Mhz at most of the time and trying to be back to 725Mhz(yea, not 900Mhz!) when im running a graphic benchmark. cpu will run about 1.1Ghz as well.
samething will happen when im playing D3 on Mac OS.
Reseting SMC and PRAM did not help! reinstalling windows7 via bootcamp did not help either.
i there any one here having the sam trouble?

Here is a conclusion of this bug from Hong Kong:
I have had this issue with my rMBP bought in early launch period, i believe it is the first batch.
Then, i bought another one with customization, which is believed is FRESH and a newer batch. NO SUCH ISSUE!
I have compared this 2 machine with different batchs and here is the result:
Cooler about 5-10 degree
No throttling under load, both CPU & GPU
use less power of CPU Package and CPU IA Cores according to AID64
lower voltages of CPU Core
3dmark 06 constant at around 15000
3dmark 11 around 2500
3dmark vantage around 10800
with driver 306.97
Are we just help Apple to improve their product at our cost?

Long start up time after Leopard install on MacBook Pro...

Hi, I just bought a MacBook Pro recently and upgraded it to Leopard
But ever since then, every time I start it up it takes over a minute to load everything
On Tiger, it would only take at most 20 seconds
It would just stay on some blue screen for a while, about 30 or 45 seconds before completely starting up.
Any suggestions on how to fix this? I used a clean install of Leopard

Hi, I'm having the same problem. My MacBook Pro is new and came with the Leopard 10.5. It's taking 2 min to reestart. I've already tried to reinstall the system with "erase and install", but it did not help. Even the first time after reinstalling the restart is already slow.
Have anybody heard anything about how to fix it?
Thanks a lot.
Fabio

After re-installing my MacBook Pro hard drive, I lost my Firefox/Mozilla 'top banner' (red ,yellow and orange in color) and with it my ability to down load via a small tab located top right on it's bar. How do I get this function back??

Recently I found it necessary to re-install my entire operating system, and I lost my ability to down load streaming videos. I am an artist almost 70 yrs. old, and am not very computer proficient which is why I purchased a MacBook Pro. I used Firefox/Mozilla to do downloading because it was easy. When I brought my system back up I found that the top 'Firefox banner' had changed from red, orange and yellow in color to shades of gray. With this change found that I no longer had the download 'tab' to click on to initiate downloads (located top right on the Firefox top section).
I've tried re-installing Firefox and Antbar download helper but am still not able to download. How do I get the download capability back again???? ......roxor999

Your storage device is probably faulty. It would be helpful if you indicated the EXACT model/year MBP that you have.
Ciao.

Facebook games won't work after Maverick install on MacBook Pro

I just installed Maverick on my MacBook Pro, it is a mid 2009 model. Ever since when I get on Facebook with Firefox, Chrome, or Safari, I can"t get any of the games to load. Everything worked just fine last night before the install, but now I am at a loss as what to do to fix this problem, short of wiping the HD and starting back over in Snow Leopard.

I just installed Maverick on my MacBook Pro, it is a mid 2009 model. Ever since when I get on Facebook with Firefox, Chrome, or Safari, I can"t get any of the games to load. Everything worked just fine last night before the install, but now I am at a loss as what to do to fix this problem, short of wiping the HD and starting back over in Snow Leopard.

Having a problem after re-install my macbook

I am having problem with my macbook.
I had both window and OS 10.4 on my macbook, and I was planning to make it back into a single system with just OS on it. However, I did it kind of backward, I put in the install disc and have a new OS on the Mac side of the Hard drive and the other half (which is with window) is still hanging there.
I had read some of the other posting, and try to repartition it in Disk Utility, but it would let me do it.
I'm wondering if there are anyway so I can make it back into just only the OS system with all 80 GB of my HD.

If you used Boot Camp Assistant to partition the hard drive, try opening it again, and click through until you get the option to create or remove a Windows partition, and when you get to that menu, click restore to delete the Windows partition.

Macbook pro mid 2012 no retina performance drop after efi

Hi, mi macbook pro mid 2012 no retina after efi update the performance are too slow, thats is the same problem with retina, please fix it, in osx mountain lyon the aplications that used every daywith video is poor, in bootcamp with games is the same problem, the cpu clock drops from3.3 ghz to 1.2 ghz or more. Waiting for a mew efi update bescause my mac is the same that a macbook air

No Apple hasn't officially stated anything about this issue. After I updated to EFI Update 2.0 I noticed the issues and started doing my research and found people in the Macrumors forums having the same problems and eventually I was reading that users that didn't update yet weren't seeing the update in their updates meaning Apple pulled the update from the servers. Other users reported after calling Applecare that they were aware of the issue.

Problems after efi 2.5 update on macbook pro 13 inch(mid 2010)

i don't know if it's related but after i updated my macbook pro 13 inch mid 2010 efi firmware to 2.5 i'm having usb problems.
the problem started after i went to software updates and downloaded efi firmware 2.5, but i didn't restarted right away actually i downloaded the efi firmware around 3pm and shut down my computer around 1am, and in the morning when i turned on my mac it made a strange noise and then restarted. then when it restarted my usb external hd wasn't working well, it takes around 10 minutes for me to be able to watch a video directly from it, and my 3g usb connects but the speed is really slow, so i cant use it. i don't know if efi firmware update is related to usb, but somehow it made my usb ports stoped working properly.
so is there a fix for this?

What you should do is time consuming but really helps (it helped for me)
Go to your disk utility setup and select your harddisk drive, then click on verify disk permissions and after that repair disk permissions, don't ask me why it runs in this order but it seems to elliminate the cause. you will most probably see some repairs being listed.
the next step is to "repair disk" procedure, allthough it could be possible that it can not and then it will tell you to use your setup disk that came with the computer, insert disk hold command and "R" at same time and you come into the menu to repair or re istal software etc.
I ran the repair mode, then re installed my operating software and it seem to resolve this issue but also the long start up problems.
good luck

My Macbook pro (early 2011)become very slow after maverick install

Hi,
My Macbook Pro (early 2011) has become very slow after installing Maverick.
System is struggling to open any web pages, apps etc.. Even booting time is more than 5 mins. My macbook has 8 GB Ram and 750GM memory and also got 200GB of free space memory..
Could you please advice me on this. Thanks

etresoft a long time contributer to Apple Support Communities wrote a very useful app he called etrecheck which helps in diagnosing many problems caused by third party installs etc.. Go to his website, read his information and from there download and run the program according to his instructions
http://www.etresoft.com/etrecheck
Download, run and post the results back here.
Pete

Macbook late '08 freezing up, has trouble booting after iLife install.

A couple of days ago I installed iLife '11 on my Macbook and went to run the updates that the App Store was telling me were available, including the Mountain Lion 10.8.4 update. I shut the lid of my computer while they were downloading, without thinking and when I opened it again, the screen was dark, but the computer was on. I forced a shutdown and went to reboot but got stuck at the grey Apple logo and timer wheel. I zapped the PRAM and it booted right up but it told me that I needed to restart to install the updates. I did so and had trouble booting again. I had to do the PRAM thing a couple more times to get it to boot but when it did, the only update that installed was GarageBand. I ran it until all of the updates had downloaded and it asked me to restart. Everything went smoothly this time but when I logged back in the OS X 10.8.4 update was sitting there waiting to be installed again. I reset to install twice more but it never installed. Now whenever I'm running an application it will freeze up after a time, and when I go to quit the application the whole computer freezes, forcing me to force shutdown but putting me back to where it freezes on boot up. Freezes when I try to boot into safe mode or recovery mode often as well. I can manage to get in every once in awhile, after zapping the PRAM two or three times, but even that is starting to freeze too. Any one know what's going on? I ran iAntiVirus and it found nothing, I'm working on uninstalling iLife to see if that helps too.
I'm running Mountain Lion on a brand new Toshiba 1tb external drive connected to a Late 2008 aluminum unibody MacBook that I bought off my friend's dad back in March. No internal drive because the one that was in it failed in May.

Let me start by saying do you know how easy it is to replace the hard drive in that MacBook? http://www.ifixit.com/Guide/MacBook+Unibody+Model+A1278+Hard+Drive+Replacement/8 16/1
First thought is to dump the anti virus software. It sounds to me as though your installation of OS X is hosed due to an incomplete update attempt. You need to repair the hard drive using Disk Utility and reinstall Mountian Lion completely, not just the update to 10.8.4.

My MacBook Pro is running very hot after lion install. Are there any hardware changes that will help? What can I do to get it back to normal?

My MacBook Pro is running very hot after lion install. Are there any hardware changes that will help? What can I do to get it back to normal?

I get the impression that most of the users on older hardware experiences similar temperature issues on Lion for a long time now. Awaiting for confirmation from the original poster.
In the meantime I'm just cautious with regards to pushing the machine to such extreme temps, since something tells me such behaviour which includes monitor flickering and the likes is nothing but abnormal for any type of use...
Any clues if 10.7.5 does anything on this? If not I'm afraid i see myself going back to SL for good...

After I installed Lion, my MacBook Pro can no longer detect my external hard drives or my USB flash drives. What should I do?

After I installed Lion, my MacBook Pro can no longer detect my external hard drives or my USB flash drives. What should I do?

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After starting Creative Cloud just a white Window appears, no Apps or something else Windows 8.1, more uninstallation and re-install didn't bring a solution

After starting Creative Cloud just a white Window appears, no Apps or something else Windows 8.1, more uninstallation and re-install didn't bring a solution. I have had installed Photoshop CC Trial Version, but had to re-boot the system, so I lost the Software. After re-installing the Creative Cloud Desktop appeared just a White window. I tried to delete the file of OOBD in AppData but no reaction. It still appears as a clear window.

See if the following helps:
https://forums.adobe.com/thread/1249756

No more arobase after EFI installed on macbook

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