Efi boot problem

Hallo .. I have Efi boot Problem in my Lenovo G50-30 Laptop .. I did all what i read here .. I disabled Net from Bios .. The Hard disk not defekt .. I take the Hard drive out .... I try to enter to safe mode or Dos .. But i cant .. I have the Laptop from 8 months .. And i Format it and i Take the drivers from Lenovo website and during the driver installation the Laptop stop and the message with "chaeking media" appaier ... What I can do ? Please help..

FWIW, that should allow you to boot into the Recovery mode. Details in Recovery and About Recovery. Also, see the Internet Recovery.

Similar Messages

Efi Boot Problem after several failed attempt to install Windows 8

Hello, excuse me in advance for my bad English level!
I have a Macbook Pro 17" i7 2,2 Ghz (early 2011 OSX 10.9.4) equipped with a 750 Gb Samsung SSD and a Secondary 750 Gb Toshiba HHD mounted in place of the Original Laptop's DVD optical Drive.
I've tried several times to Install Windows 8.1 into the Secondary HHD Drive (USB KEY created with a Windows 8.1 Iso Image through the Bootcamp assistent) but without success. This is the message at the end of the Windows 8.1 installation process:
Windows could not prepare the computer to boot into the next phase of installation. To install Windows, restart the installation.
I don't Know why and I Don't Know what to do... The problem seems to have no solution and I'm so frustrated!!! .
But Now I've Noticed, if the EFI Boot partition is selected during the macbook's startup process, this Error Message:
I've formatted the second HDD Hark Disk now and there should be no trace of Windows in my laptop so... why this message appears?
So I've Mounted the EFI boot Partition in OSX and that's It:
So...
1) Is There some file I Can safely delete to remove this Windows's error message?
2) Is It Normal that EFI Boot Partition appears during the Macbook Startup?
THANKS IN ADVANCE FOR YOUR HELP!

Hi,
Well from what I can see here you may have a hardware problem with the player. If it is not being recognised as a removable disk I would suggest if possible try it on another PC and see how it behaves. If there are no problems can you post some system details otherwise I'd either return to the dealer and they should swap it for you our contact customer support and they should be able to assist.
In answer to your question holding down the play pause button while inserting the device into the port starts it in recovery mode and you should a be able to recover from there but as the unit is behaving so badly I'd gof for my former diagnosis.
Hope this helps,
John

What is the EFI boot option for mac, and why is my Mac having problems with it?

I just updated my 2012 Macbook Pro to 10.9, and I am having some problems with it. I have a bootcamp partition on it and regularly awitch between mac and windows, and 2when I went to switch nack to my Mac side, It said EFI boot nstead of the regular Macintosh HD. When I choose that option, the aple logo comes up and progress bar appears. Once the progress bar finishes, the computer shuts off and doesnt do anything. When I turn it on again, it just starts the efi boot again and shuts off when it finishes. Why is this happening and what can I do to fix this. All help is extremely appreciated.

That usually happen because the OS X partition got corrupted. Abiotu the only fix for that is to reinstall OS X and to do that you might have to completely erase the drive or repartition it as one partition. Which will wipe out the Windows side. So backup everthing you can before you start.
nisuteng wrote:
Hi, did you fix the problem?
I have the same problem... and my warranty has expired...
please help~~
thanks!!

[SOLVED]Dual boot problem with an Asus UX31A (EFI)

I never did an EFI install before and I still don't understand how it works however following the Zenbook wiki, I have successfully installed Arch. Now I can't boot Windows 7 anymore. I am using grub2, have installed os-prober. Grub menu has windows 7 entry but when used prompts a wrong EFI file path error.
My partition table is:
[root@zenbook sonay]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 238.5G 0 disk
├─sda1 8:1 0 200M 0 disk
├─sda2 8:2 0 128M 0 disk
├─sda3 8:3 0 98.6G 0 disk
├─sda4 8:4 0 4G 0 disk
├─sda5 8:5 0 90.7G 0 disk
├─sda6 8:6 0 512M 0 disk /boot/efi
├─sda7 8:7 0 3.9G 0 disk
├─sda8 8:8 0 10G 0 disk
├─sda9 8:9 0 200M 0 disk /boot
└─sda10 8:10 0 30.3G 0 disk /
sdc 8:32 0 931.5G 0 disk
└─sdc1 8:33 0 931.5G 0 disk /run/media/sonay/My Passport
/dev/sda1 used to be Windows 7 EFI partition. Gparted says it is flagged as boot.
What I did to install arch:
Partitioned /dev/sda5 with windows disk manager to create linux partitions and formatted the new partitions with gparted as the noob I am.
created /dev/sda6 for EFI boot
created /dev/sda9 for boot partition
created /dev/sda10 as root.
Did not touch
/dev/sda1 which was the EFI partition named SYSTEM
/dev/sda2 which was windows boot partition
/dev/sda3 which was windows C:,
/dev/sda4 and /dev/sda7 which I don't know what they used to be (possible for Asus fast wake up or swap whatever)
/dev/sda8 which is recovery partition.
I did not touch any grub files, except /etc/default/grub
[sonay@zenbook ~]$ cat /etc/default/grub
GRUB_DEFAULT=0
GRUB_TIMEOUT=1
GRUB_DISTRIBUTOR="Arch"
GRUB_CMDLINE_LINUX_DEFAULT="quiet init=/bin/systemd add_efi_memmap elevator=noop i915.i915_enable_rc6=1 pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0"
GRUB_CMDLINE_LINUX=""
# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"
# Uncomment to enable Hidden Menu, and optionally hide the timeout count
#GRUB_HIDDEN_TIMEOUT=5
#GRUB_HIDDEN_TIMEOUT_QUIET=true
# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console
# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=auto
# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX=keep
# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true
# Uncomment and set to the desired menu colors. Used by normal and wallpaper
# modes only. Entries specified as foreground/background.
#GRUB_COLOR_NORMAL="light-blue/black"
#GRUB_COLOR_HIGHLIGHT="light-cyan/blue"
# Uncomment one of them for the gfx desired, a image background or a gfxtheme
#GRUB_BACKGROUND="/path/to/wallpaper"
#GRUB_THEME="/path/to/gfxtheme"
# Uncomment to get a beep at GRUB start
#GRUB_INIT_TUNE="480 440 1"
#GRUB_SAVEDEFAULT="true"
Finally my /boot/grub/grub.cfg is:
[sonay@zenbook ~]$ cat /etc/default/grub
GRUB_DEFAULT=0
GRUB_TIMEOUT=1
GRUB_DISTRIBUTOR="Arch"
GRUB_CMDLINE_LINUX_DEFAULT="quiet init=/bin/systemd add_efi_memmap elevator=noop i915.i915_enable_rc6=1 pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0"
GRUB_CMDLINE_LINUX=""
# Preload both GPT and MBR modules so that they are not missed
GRUB_PRELOAD_MODULES="part_gpt part_msdos"
# Uncomment to enable Hidden Menu, and optionally hide the timeout count
#GRUB_HIDDEN_TIMEOUT=5
#GRUB_HIDDEN_TIMEOUT_QUIET=true
# Uncomment to use basic console
GRUB_TERMINAL_INPUT=console
# Uncomment to disable graphical terminal
#GRUB_TERMINAL_OUTPUT=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=auto
# Uncomment to allow the kernel use the same resolution used by grub
GRUB_GFXPAYLOAD_LINUX=keep
# Uncomment if you want GRUB to pass to the Linux kernel the old parameter
# format "root=/dev/xxx" instead of "root=/dev/disk/by-uuid/xxx"
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true
# Uncomment and set to the desired menu colors. Used by normal and wallpaper
# modes only. Entries specified as foreground/background.
#GRUB_COLOR_NORMAL="light-blue/black"
#GRUB_COLOR_HIGHLIGHT="light-cyan/blue"
# Uncomment one of them for the gfx desired, a image background or a gfxtheme
#GRUB_BACKGROUND="/path/to/wallpaper"
#GRUB_THEME="/path/to/gfxtheme"
# Uncomment to get a beep at GRUB start
#GRUB_INIT_TUNE="480 440 1"
#GRUB_SAVEDEFAULT="true"
[sonay@zenbook ~]$ cat /boot/grub/grub.cfg
cat: /boot/grub/grub.cfg: Permission denied
[sonay@zenbook ~]$ su
Password:
[root@zenbook sonay]# cat /boot/grub/grub.cfg
# DO NOT EDIT THIS FILE
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt10'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt10 --hint-efi=hd0,gpt10 --hint-baremetal=ahci0,gpt10 cf66f05a-418c-4517-a0e0-af01b3be4a67
else
search --no-floppy --fs-uuid --set=root cf66f05a-418c-4517-a0e0-af01b3be4a67
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_input console
terminal_output gfxterm
set timeout=1
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Arch GNU/Linux, with Linux core repo kernel' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-true-cf66f05a-418c-4517-a0e0-af01b3be4a67' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod ext2
set root='hd0,gpt9'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 --hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9 42d2ba69-758d-4a54-9482-ae5d60866a52
else
search --no-floppy --fs-uuid --set=root 42d2ba69-758d-4a54-9482-ae5d60866a52
fi
echo 'Loading Linux core repo kernel ...'
linux /vmlinuz-linux root=UUID=cf66f05a-418c-4517-a0e0-af01b3be4a67 ro quiet init=/bin/systemd add_efi_memmap elevator=noop i915.i915_enable_rc6=1 pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0
echo 'Loading initial ramdisk ...'
initrd /initramfs-linux.img
menuentry 'Arch GNU/Linux, with Linux core repo kernel (Fallback initramfs)' --class arch --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-core repo kernel-fallback-cf66f05a-418c-4517-a0e0-af01b3be4a67' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod ext2
set root='hd0,gpt9'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 --hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9 42d2ba69-758d-4a54-9482-ae5d60866a52
else
search --no-floppy --fs-uuid --set=root 42d2ba69-758d-4a54-9482-ae5d60866a52
fi
echo 'Loading Linux core repo kernel ...'
linux /vmlinuz-linux root=UUID=cf66f05a-418c-4517-a0e0-af01b3be4a67 ro quiet init=/bin/systemd add_efi_memmap elevator=noop i915.i915_enable_rc6=1 pcie_aspm=force drm.vblankoffdelay=1 i915.semaphores=1 nmi_watchdog=0
echo 'Loading initial ramdisk ...'
initrd /initramfs-linux-fallback.img
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows 7 (loader) (on /dev/sda3)' --class windows --class os $menuentry_id_option 'osprober-chain-5246C0D846C0BE4B' {
insmod part_gpt
insmod ntfs
set root='hd0,gpt3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3 5246C0D846C0BE4B
else
search --no-floppy --fs-uuid --set=root 5246C0D846C0BE4B
fi
chainloader +1
menuentry 'Windows Recovery Environment (loader) (on /dev/sda8)' --class windows --class os $menuentry_id_option 'osprober-chain-3C98C9B298C96B4A' {
insmod part_gpt
insmod ntfs
set root='hd0,gpt8'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt8 --hint-efi=hd0,gpt8 --hint-baremetal=ahci0,gpt8 3C98C9B298C96B4A
else
search --no-floppy --fs-uuid --set=root 3C98C9B298C96B4A
fi
drivemap -s (hd0) ${root}
chainloader +1
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# 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.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
SOLUTION:
first I needed to mount Windows EFI partition which was /dev/sda1, so :
mount /dev/sda1 /mnt
Then issue the following commands and take note of the outputs:
grub-probe --target=fs_uuid /mnt/EFI/Microsoft/Boot/bootmgfw.efi
which outputs: 18DF-E58E and
grub-probe --target=hints_string /mnt/EFI/Microsoft/Boot/bootmgfw.efi
which outputs: --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1
Finally edit the os-prober entry to the following in /boot/grub/grub.cfg
menuentry 'Windows 7 (loader) (on /dev/sda3)' --class windows --class os $menuentry_id_option 'osprober-chain-5246C0D846C0BE4B' {
insmod part_gpt
insmod fat
insmod search_fs_uuid
insmod chain
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 18DF-E58E
chainloader /EFI/Microsoft/Boot/bootmgfw.efi
Last edited by sonay (2012-10-07 18:20:20)

grub-probe --target=hints_string /boot/efi/EFI/Microsoft/Boot/bootmgfw.efi
--hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1
Sorry, no need to anymore. Thanks anyways.
Last edited by sonay (2012-10-07 18:08:39)

IMac 24" HDD issues, cant backup from Time maschine, EFI BOOT ERROR

Hi, after a failed Bootcamp experience I saw yesterday only my Windows Partition in the boot chooser. I booted then from Rescue DVD and formatted the hdd completey. Then I reinstalled from my latest Time Maschine backup the whole hdd. Took 7 hrs for 500 GB!
I restarted then the imac but its shows now only a "EFI BOOT" Drive in the boot choose. When I click on the drive, it shows gray screen than black and the Imac is shutdown °°
What can I do???

Although your machine does not match the model series of this
specific forum (this one is dedicated to iMac G4 LCD models)
you may be able to make sense of some of the links posted in
this Apple Discussions thread:
Re: Blank Grey Screen After Using Boot Camp - intel iMac:
http://discussions.apple.com/message.jspa?messageID=8563101#8563101
{Since the G4 series can't run BootCamp and can't boot Windows,
if the link above has a desired coverage of information, the topic
should be closed; if not, you may have to rephrase the question
and re-post the problem in a new thread in the newer Intel iMac
Discussion forum; or search there for additional ideas on topic.}
re: Intel iMac Discussions forum (specific areas within)
http://discussions.apple.com/category.jspa?categoryID=189
Good luck & happy computing!

Macbook Pro 6,2 EFI Boot rEFind

I have been using Linux for a while, but I am not very familiar with the booting process of Linux.
First, I have managed to get Arch booting using grub2-efi, however I would like to use the Linux Kernel EFISTUB.
I have placed the initramfs-linux.img and vmlinuz-linux.efi in the /EFI/Arch/ (which happens to be mounted on /boot) and a linux.conf in the same place containing
initrd=\EFI\Arch\initramfs-linux.img root=/dev/sda5 ro quiet
When I try to boot Arch using rEFInd (not rEFInd to Grub2 to Arch) I see that rEFInd attempts to use the settings found in the linux.conf then I get the following:
[ 0.592308] i8042: No controller found
:: running early hook [udev]
:: running hook [udev]
:: Triggering uevents....
[ 0.673673] uhci_hcd 0000:00:1a.0: Found HC with no IRQ. Check PIOS/PCI 0000:00:1a.0 setup!
[ 0.673739] uhci_hcd 0000:00:1a.0: init 0000:00:1a.0 fail, -19
[ 0.673793] uhci_hcd 0000:00:1d.0: Found HC with no IRQ. Check PIOS/PCI 0000:00:1a.0 setup!
[ 0.673849] uhci_hcd 0000:00:1d.0: init 0000:00:1a.0 fail, -19
ERROR: device '' not found. Skipping fsck.
ERROR: Unable to find root device ''.
You are being dropped to a recovery shell
Type /exit/ to try and continue booting
sh: can't access tty; job control turned off
I am not sure what most of it means, however my research tells me that the uhci_hcd is some device that the kernel cannot use correctly and the two that start with ERROR: are related to the EFI booting. Since I specified the device in the linux.conf should it be looking there and not in ''?
Can someone guide me along the correct path?
Comment reguarding the "uhci_hcd" and "No controller found" messages are welcome as well.
Last edited by raisdead (2012-09-15 19:32:29)

Hello raisdead.
I'm using an iMac (mid 2010, with i3 processor and AMD 4670 graphics).
I also have been trying to get EFISTUB boot to work and I've got it running now. I prefer it to grub.
Your log reports are OK (like mine) until the ERROR comes up.
I think you may not have got the correct UUID for your disk in the refind_linux.conf file.
If you can boot with another linux, maybe a live install disk, and run
sudo blkid /dev/sda7 (or whatever the number is for your arch disk partition)
you will get the UUID to put in your refind_linux.conf file.
In the refind_linux.conf file, the menu line I use to boot with is
"Boot default" "root=UUID=e5ead341-2bea-4933-969c-09ba528e9729 ro nosplash nomodeset init=/bin/systemd"
You might use the same but with your own UUID value, and maybe no init= value, if you are not using systemd yet (despite initial problems I recommend it).
The nomodeset is to avoid a black screen problem with the radeon video module.
My boot files are under EFI/arch353/ on the first partition on my mac. The files there are
refind_linux.conf
vmlinuz-linux
initramfs-linux.img
initramfs-linux-fallback.img
To keep this up to date when the kernel changes I mount the EFI partition (do this before the new kernel is installed, otherwise you might lose the ability to mount)
mount /dev/sda1 /mnt/uefi
make a new folder arch354 (say)
and copy over the new vmlinuz, initramfs files, together with a copy of the original refind_linux.conf
When one version isn't needed just delete its folder.
refind seems to find anything that might be bootable.
Good luck.

Mac Pro with X1900 XT graphics card EFI boot display

Hi all,
I've got this problem with my mac pro with ATI Radeon X1900 XT - 1st DVI connected to the 23 inch apple display and the 2nd DVI connected to my optoma dlp projector.
My problem is that the EFI boot menu shows up on the 2nd DVI connection. So basically I see the boot menu only on the projector when it should have been on my apple display.
Can someone please help me figure this out. Can't seem to find any on google or anywhere else.
Thanks in advance for the help!

Sorry, I forgot to add that small detail..
I can switch both connections and it'll work for the mac part of the deal but the windows end cant switch screens - making the apple display the primary display on windows..
now it sounds like a "windows" issue doesnt it!?heh

T540p firmware ignores Linux EFI boot

This post is for just a suggestion for anyone who is installing Linux on their Lenovo. The firmware in my new T540p (arrived from the factory 2014-12-19) does not recognize Linux EFI boot entries, at least not the way they are installed by Ubuntu 14.10 (which may be a bug in the Ubuntu installer). My bootloader would only look for one absolute path EFI/boot/bootx64.efi. If you install Linux, you will not necesarily get this file--it may instead be EFI/ubuntu/grubx64.efi, and the corresponding boot catalog entry may not be installed for you. In this case, your Lenovo will silently refuse to boot your Linux. If you have this problem. try this:
boot to Linux via LiveUSB or LiveCD
mount the boot partition
sudo mkdir /mnt/deadboot; sudo mount /dev/sda1 /mnt/deadboot
copy grubx64.cfg to bootx64.cfg into the magic directory:
sudo mkdir /mnt/deadboot/EFI/boot
sudo cp /mnt/deadboot/EFI/ubuntu/grubx64.efi /mnt/deadboot/EFI/boot/bootx64.efi
unmount and reboot
Also make sure your boot partition is an "EFI System" partition:
sudo fdisk /dev/sda
p
your boot partition should be listed as "EFI System" type
--if so, stop here
--else continue and fix it:
t
select the boot partition
select parition type 1
w
writes the change to disk and issues a warning that you can ignore
reboot
Notes: (1) your boot drive may not be /dev/sda1. Google for various ways to find it. (2) If your liveUSB or liveCD won't boot either, try switching the BIOS between legacy and UEFI boot. Recently downloaded 64-bit Ubuntu images will only boot UEFI.

These forums are not really your best choice to find an answer. Either the Mint tech support or forums can help you or you might try the Ubuntu forums. Macs are not the only computers that have and use EFI. Your issue may simply be one of configuring GRUB.

Mac partition now called efi boot?

I upgraded my HD and restored my data using a cloned image file. I am also running a second partiton with windows 7 installed. before i upgraded, when i hit 'option' to choose my boot volume, i believe my choices were "macintosh hd" and "windows(or something similar)". now my "macintosh hd" is called "efi boot" and it does not boot into mac by default but rather windows. how do i rename that partition/fix this problem?
thanks in advance
tom

Hi,
I have this same issue. I tried to change the partitions to say the names I want, and when I Option Boot, it still shows the incorrect name, ignoring my changes.
ideas?
Thanks.

[SOLVED] UEFI Virtualbox installation boot problems

Before I install Arch on my computer, I wanted to test the installation in Virtualbox. Because my motherboard has UEFI, I selected the EFI option in Virtualbox for a 64 bit Arch install.
I ran through the Beginners' Guide on the wiki and all seemed to go well. I rebooted the VM after the installation (forgetting to remove the ISO from the drive) and got the refind menu showing correctly and managed to boot in to my new Arch system from there. I also did a reboot (with the ISO still in the drive) and all was well. However, I then shutdown the system (shutdown -h now) and then powered it back on again and instead of going in to the refind menu, it goes to the archiso uefi boot menu and continues to boot from the ISO. So I powered down the VM again, removed the ISO from the drive and powered the VM back on again. This time, nothing booted and I was left in the UEFI shell.
Does anyone have any ideas why this has happened?
Last edited by ryan117 (2013-02-13 20:15:44)

This is probably because VirtualBox tends to forget its "NVRAM" settings when you reboot. There are a number of solutions to this problem. IMHO, the easiest is:
Boot using an emergency system.
Mount the ESP (probably /dev/sda1 -- the FAT partition that holds the boot loader).
Rename EFI/refind on the ESP to EFI/BOOT
Rename EFI/BOOT/refind_x64.efi to EFI/BOOT/bootx64.efi
Thereafter, rEFInd should appear when you reboot. If you subsequently upgrade rEFInd, you'll need to install it to its new location rather than to EFI/refind.
Alternatively, you can use the bcfg command in an EFI version 2 shell to register refind_x64.efi as the default boot program. This tends to get remembered, even when entries created by efibootmgr don't. This will require installing an EFI 2 shell, running it, and running the suitable bcfg command. (I think it's documented in the Arch wiki somewhere.)

Bootcamp NO EFI Boot Crisis

I have a serious problem,
Tonight I needed to start up my Windows 7 partition on my Mac Pro with Mavericks. I hadn't used it since I installed my 4GB NVIDIA GTX 760 card which isn't a EFI Boot ROM card so I had to select Startup Drive within System Preferences, and restart. Without knowing, something has happened to my Windows partition and it comes up with "No Bootable Device". The massive problem I have is because my video card isn't an official mac one, I can't bring up the Boot Drive Selection Window by holding "Option" after the restart chime.
I thought I might be able to use my Windows 7 disk, but it doesn't detect the drive. I have also tried to boot the Recovery HD so I can switch the Startup Disks there, and still no luck. Out of desperation I have also tried "C" to boot from DVD Drive and that didn't work either..
Please help
JD

Do you happen to have any other drives connected? (e.g. USB stick, etc.)
Maybe replace the graphics card with the old one again? Though that shouldn't be necessairy for a bootdrive.

What is "efi boot" ??

Something has happened where now if I hold down the Option key when I boot, rather than showing me all my bootable options by name as it used to do, it now shows all bootable options by the same name,
"efi boot"...
I clone my hard drive now and then and after doing so I always like to boot with the clone just to see that it is bootable... Always before it has shown both my main drive, by name and icon, and the cloned drive, also by its name and icon. Now, it still shows them with their specific icons but the real drive names are not presented and instead the system calls them both "efi boot"...
What has happened and can I fix this issue???
any help would be appreciated... thanks... bob...

You use and ran Disk Warrior?
http://www.google.com/search?q=AlsoftDisk+Warrior+EFIBoot
It is cosmetic. Has existed for years. Not a problem. First saw it back in 10.5.0 if not earlier and thought it was TechTool Pro 4.x issue (the first time I saw that my Intel Mac Pro has GPT and EFI partitions).
So there are hidden partitions. And the boot manager shows EFI (which are 128MB and probably the 'actual' boot loader is there but that is pure guess-speculation).
Google turns up excellent threads
(my way of saying most things already or may exist and worth a read).
http://discussions.apple.com/message.jspa?messageID=10300455
The solution is to simply select the startup disk you want via the
System Preferences Pane."
Open Terminal.app, at the prompt type:
sudo bless --folder /System/Library/Coreservices --bootefi
(press return, enter your admin password, press return again)
The startup disk name should now equal the volume name. And yes, this happens every time you rebuild the directory with DW,
http://discussions.apple.com/thread.jspa?messageID=10290097

Sleekbook 6 efi boot

Hardware: HP ENVY Sleekbook 6 (6-1110us)
Firmware Ver: F.12
O/S: Ubuntu 12.10
I am encountering problems attempting to change the (U)EFI Boot Options on my Sleekbook. I can view the boot parameters, but changes do not appear to get saved in NVRAM. I believe this might be caused by one of the current boot options being broken.
The Boot Order shows the following: 2001,3004,3002,3003,3005,2002
However, in the list of Boot Options, 2002 (or Boot2002) does not exist. All of the boot options I have created are in the 000x range, so I assume the 300x and 200x boot options are either from the factory or auto-generated by the firmware. I cannot recreate Boot2002, nor can I remove it from the Boot Order. I have tried this both from Ubuntu (via efibootmgr) and via an EFI Shell. When running the command "bcfg boot dump -v" in the EFI Shell, it shows the first 5 boot options, then gives an error "variable Boot2002 not found".
I have also reset the firmware to defaults via the setup utility. No change.
Is there a way to restore the Boot2002 boot option?
Alternatively, reseting all the boot options to defaults would also work for me. If I have to recreate the boot options for Ubuntu, that is not a problem.
Booting Ubuntu and running the EFI Shell both work fine.
A little history (if it helps) ...
It originally came with Windows 8, which I replaced with Ubuntu 12.10, completely restructuring the disk in the process. (I do have a full image of the factory-installed disk.) I tried out a few different installs before settling on what I wanted. Now I have extraneous boot options I would like to get rid of, both to clean things up and to reduce confusion.
To say thanks, click the "Kudos" button!

Good Morning @CCStefanini ,
Welcome to the HP Forums!
It is a terrific place to find answers and ideas!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
I grasp that you tried to do the recovery from the recovery disks HP sent but received this error " P2PP BurnBoot Check Failed" .
You have tried changing the date in the bios but there was no change.
Here is a link to Troubleshooting HP System Recovery Problems (Windows 7) that will guide you through some steps.
Here is a link to a search I did in the forum for your error that were resolved. You may wish to peruse these as they may have a suggestion that may help. P2PP BurnBoot Check Failed forum search
As HP did just send you the recovery kit, you may also contact them for assistance.
Please call our technical support at 800 474 6836. If you live outside the US/Canada Region, please click the link below to get a support number for your region.
World Wide Phone Support
Good Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

URGENT - EFI Boot or Windows

I am folllowing this guide: https://discussions.apple.com/message/23625662?ac_cid=tw123456#23625662?ac_cid=t w123456
I'm stuck on step 13 because I have 2 options: EFI Boot, and Windows, they both have th USB logo.
Which do I choose?

Always use Windows. Your Mac should be able to install Windows in EFI mode without any problem, but you will have hardware problems if you use it, apart from not being able to install the Windows support software

MacbookPro EFI Boot password issues

I have Windows installed via bootcamp on the same hard drive as my Mac partition. I do have the EFI boot password set up, which has never been an issue before. I normally just hit option, type in my password and boot whatever I need to boot.
I recently installed an update to Windows 7 SP 1 (64 bit) as well as a few other Windows security updates. After that Windows update, for some reason, my 'b' key will not work at the EFI boot password screen. The 'b' key is part of my EFI boot password. When I boot in to Mac regurarly, my keyboard works just fine, 'b' key included. It is just at the boot password screen and only my 'b' key that will not work.
I have used the nvram utility (in my booted mac) to reset the nvram, I have reset the SMC. Nothing has worked to get my 'b' key back at the boot password screen. As you know, I cant use any of the boot keys to help fix this problem either.
Any ideas on what is causing this?

Bump because this is a weird problem. Did SP1 screw up my firmware somehow?

Efi boot problem

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