Grub-install: "cannot find EFI directory" (CSM mode)

Hi,
I'm trying to install grub on the mbr with 'grub-install /dev/sdb', but I get "cannot find EFI directory'. I have an Asus laptop with secure boot disabled and CSM enabled (I *need* CSM because otherwise - I don't know the reason - I can't boot from USB/disk). I have Windows 7 installed (/dev/sdb2) and I know there's a small partition (/dev/sdb1) which was created during Windows 7 installation which contains a 'Boot' directory, a 'bootmgr' file and other stuff. Now, my purpose is to dual boot Windows 7 and Arch while the BIOS is in CSM mode. The problem is that a simple grub-install /dev/sdX does not work as expected (under Gentoo, it simply worked out-of-the-box). By now, I can chroot into my fresh Arch installation (/dev/sdb3). Another thing: possible targets for grub-install are 'i686-pc' and 'x86_64-efi'; when running grub-install the program automatically selects 'x86_64.efi' as target. I don't know if it's correct (I do have an AMD64 laptop, just to clarify). Thanks in advance.

tant0c1b0 wrote:Hi,
I'm trying to install grub on the mbr with 'grub-install /dev/sdb', but I get "cannot find EFI directory'. I have an Asus laptop with secure boot disabled and CSM enabled (I *need* CSM because otherwise - I don't know the reason - I can't boot from USB/disk). I have Windows 7 installed (/dev/sdb2) and I know there's a small partition (/dev/sdb1) which was created during Windows 7 installation which contains a 'Boot' directory, a 'bootmgr' file and other stuff. Now, my purpose is to dual boot Windows 7 and Arch while the BIOS is in CSM mode. The problem is that a simple grub-install /dev/sdX does not work as expected (under Gentoo, it simply worked out-of-the-box). By now, I can chroot into my fresh Arch installation (/dev/sdb3). Another thing: possible targets for grub-install are 'i686-pc' and 'x86_64-efi'; when running grub-install the program automatically selects 'x86_64.efi' as target. I don't know if it's correct (I do have an AMD64 laptop, just to clarify). Thanks in advance.
You are telling the system to act like it is a BIOS system as far as the boot process goes but I don't think you are using a disk with a MBR, master boot record partition table. Is your disk actually GPT? This is a common gotcha when trying to use CSM mode on a UEFI based system since UEFI systems come with GPT disks. I believe this describes Grub installation in your configuration.
https://wiki.archlinux.org/index.php/GR … structions
To be clear though, I don't think this is a good direction to go. This isn't keeping things simple though that may have been why you chose to do it. I don't have enough information to know but it sounds like your disk expected to be in a UEFI system and was created with a GPT partition scheme. I would use it that way for Arch and for Windows if you choose to have that installed. I think it creates unneeded complexity to create a hybrid UEFI/BIOS configuration. I would always have all disks using the same partition scheme (the reason you can't boot "USB/disk" may be that you need GPT) and all OS's booting UEFI on a UEFI system.

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NAME FSTYPE LABEL UUID MOUNTPOINT
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sr0 iso9660 ARCH_201405 2014-05-01-05-20-54-00 /run/archiso/bootmnt
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PE Size 4.00 MiB
Total PE 2175
Free PE 0
Allocated PE 2175
PV UUID GNznA5-fwUh-Gw6D-JvY4-rZKJ-d6fP-TIyoRZ
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--- Volume group ---
VG Name VolGroup00
System ID
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Metadata Sequence No 3
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Cur LV 2
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Act PV 1
VG Size 8.50 GiB
PE Size 4.00 MiB
Total PE 2175
Alloc PE / Size 2175 / 8.50 GiB
Free PE / Size 0 / 0
VG UUID x8VegQ-OKr6-kNNk-HwHe-xxi1-Ecdt-W9Ydj2
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--- Logical volume ---
LV Path /dev/VolGroup00/lvroot
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LV Write Access read/write
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# open 1
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Current LE 1280
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Block device 254:1
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LV Path /dev/VolGroup00/lvhome
LV Name lvhome
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LV UUID 3q32Nf-CRZz-iYpB-5317-075y-ulj3-uurdwE
LV Write Access read/write
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# /etc/fstab: static file system information
# <file system> <dir> <type> <options> <dump> <pass>
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UUID=4b28d500-8ed3-4fe5-ad26-97fbb01f979b / ext4 rw,relatime,data=ordered 0 1
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UUID=659e5bcf-b34b-4083-b8e5-e336fdd20c3d /boot ext4 rw,relatime,data=ordered 0 2
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UUID=a576bed1-929a-4ea5-b771-6b2e3b2e3808 none swap defaults 0 0
root@archiso / # cat /mnt/boot/grub/grub.cfg | grep "root"
set root='lvmid/x8VegQ-OKr6-kNNk-HwHe-xxi1-Ecdt-W9Ydj2/q8LxrZ-PXmf-K2Sl-7SNl-DlsF-IZ3s-2m2eHw'
search --no-floppy --fs-uuid --set=root --hint='lvmid/x8VegQ-OKr6-kNNk-HwHe-xxi1-Ecdt-W9Ydj2/q8LxrZ-PXmf-K2Sl-7SNl-DlsF-IZ3s-2m2eHw' 4b28d500-8ed3-4fe5-ad26-97fbb01f979b
search --no-floppy --fs-uuid --set=root 4b28d500-8ed3-4fe5-ad26-97fbb01f979b
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search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3 659e5bcf-b34b-4083-b8e5-e336fdd20c3d
search --no-floppy --fs-uuid --set=root 659e5bcf-b34b-4083-b8e5-e336fdd20c3d
linux /vmlinuz-linux root=UUID=4b28d500-8ed3-4fe5-ad26-97fbb01f979b rw quiet
set root='hd0,gpt3'
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3 659e5bcf-b34b-4083-b8e5-e336fdd20c3d
search --no-floppy --fs-uuid --set=root 659e5bcf-b34b-4083-b8e5-e336fdd20c3d
linux /vmlinuz-linux root=UUID=4b28d500-8ed3-4fe5-ad26-97fbb01f979b rw quiet
set root='hd0,gpt3'
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt3 --hint-efi=hd0,gpt3 --hint-baremetal=ahci0,gpt3 659e5bcf-b34b-4083-b8e5-e336fdd20c3d
search --no-floppy --fs-uuid --set=root 659e5bcf-b34b-4083-b8e5-e336fdd20c3d
linux /vmlinuz-linux root=UUID=4b28d500-8ed3-4fe5-ad26-97fbb01f979b rw quiet
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# HOOKS
# This is the most important setting in this file. The HOOKS control the
# order in which HOOKS are added. Run 'mkinitcpio -H <hook name>' for
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# HOOKS="base udev autodetect block filesystems"
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HOOKS="base udev autodetect modconf block lvm2 filesystems keyboard fsck"
Last edited by garrio (2014-05-18 00:42:36)

Efka wrote:when i was installing Arch, i installed grub on /dev/sda and my sda (gpt )was - sda1 (ext4)for / and sda2(ext4) for /home so when grub is installed it is installed into SDA ( or im wrong? ) but not into sda1 or sda2, but when i was doing my install i didnt made /boot ext4 partition (sda3 ext4 659e5bcf-b34b-4083-b8e5-e336fdd20c3d /mnt/boot) . i think u trying to mount grub into ext4 partition. is this right ? if yes... is it how it suposed to be ?
Sorry, im newbie ( dont take my advice seriously ), but im very curious about his, because once i couldnt install grub as well so i went for syslinux instead , and i know i will have one more fresh install of arch to do, so im curious
Hi Efka, I used grub-install and specified "/dev/sda" for argument. What I understand is that the sda is the identifier for the hard disk where all the sdaX reside. And if you look into the output of my lsblk, you will see that there is one partition sda1 that has no filetype, label and UUID on display; that is actually the bios boot partition where, as I understand, the grub code embeds itself.
We can have different partition scheme to deploy and having a separate partition for /boot is just my personal preference ans it should work as well.

GRUB Cannot Find chainload

I am currently trying to dual boot Windows 8 and Arch Linux. I have Windows 8 installed on my first boot device and Arch installed as per the Beginner's Wiki to my second boot device (both SSD's, sdb and sdc, respectively).
lsblk:
sda [RAID controlled by dedicated card]
sda1 128M
sda2 3.7T
sdb
sdb1 300M
sdb2 100M
sdb3 128M
sdb4 232.4G
sdc
sdc1 500M
sdc2 20G /
sdc3 10G /var
sdc4 200G /home
sdc5 235.3G (spare)
Everything appears to be installed and configured correctly, and I have installed GRUB and gummiboot after GRUB did not work. This was partly do to me having to change some bios settings so that secure boot was disabled, or at least set to "Other OS". At an earlier point I actually wiped my /boot and re-installed Arch (which I believe only replaced missing files) and re-installed grub and re-generated the configuration file.
Now, the GRUB menu shows properly on boot with my Arch and Windows entries and I am able to boot into Arch fine. However, now when I select MS Windows, Grub tells me that it cannot find the chainload command. Is it supposed to be just 'chain', perhaps?
In my /etc/grub.d/40_custom file I added two menu entries, one for Arch Linux and one for MS Windows.
menuentry "Arch Linux" {
set root=(hd2,2)
linux /boot/vmlinuz-linux
initrd /boot/initrd.img
# This was added as per the advice at: http://unix.stackexchange.com/questions … gpt-system
menuentry "MS Windows" {
insmod part_gpt
insmod search_fs_uuid
insmod ntfs
insmod chain
search --fs-uuid 3A781C97781C544B --set=root --hint-bios=hd1,gpt4 --hint-efi=hd1,gpt4 --hint-baremetal=ahci1,gpt4
chainload (${root})/Windows/Boot/EFI/bootmgfw.efi
What could this be?
Thank you for any and all suggestions!!

I'm not opposed to gummiboot, like I said it was my first choice, but as I encountered problems I took the guide advice and tried GRUB. If I can get GRUB to work and it increases my understanding, I would be all for it. I'm definitely familiar with Linux, but I don't have extensive experience with GRUB and EFI.
What is the best way to use gummiboot? Uninstall GRUB or install them side-by-side?
Here is the output of parted -l:
parted -l]http://www.hrtmn.net/Images/parted.png
And here is the output of lsblk:
parted -l]http://www.hrtmn.net/Images/lsblk.png
bootmgfw.efi:
parted -l]http://www.hrtmn.net/Images/bootmgfw.png
Moderator edit: Redacted huge images
Last edited by ewaller (2015-04-16 04:41:27)

[SOLVED]Grub-Install can't Find Kernel and/or initrd, mkinitcpio Fails

Hi all,
I have recently installed Arch on my new build (with UEFI firmware). I successfully set up xorg, alsa/pulseaudio, xfce, etc... things were looking pretty good. Then, I tried to blacklist the pcspkr in order to silence the annoying beep every time I selected "Log Out" inside xfce. I executed
mkinitcpio -p linux
and was presented with the following errors:
==> Building image from preset: 'default'
-> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
==> ERROR: specified kernel image does not exist: `/boot/vmlinuz-linux'
==> Building image from preset: 'fallback'
-> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
==> ERROR: specified kernel image does not exist: `/boot/vmlinuz-linux`
There were no such files anywhere on /boot. I tried doing
find / -name vmlinuz-linux
and nothing was found. I wasn't quite sure why that was happening, but I tried uninstalling/reinstall grub (grub-common and grub2-efi-x86_64). I installed grub to /boot using
grub-install --directory=/usr/lib/grub/x86_64-efi --target=x86_64-efi --efi-directory=/boot --bootloader-id="Arch Linux" --boot-directory=/boot --recheck --debug
and then generated /boot/grub/grub.cfg. I tried rebuilding the initramfs again but got the same error. I was tired and frustrated so I removed the old grub efi entry with
efibootmgr -b 0 -B
and then went to sleep.
I didn't have the chance to turn the computer back on until tonight... I was then presented with a grub2 shell. Since I didn't know where the kernel/initrd were located I tried
set root=(hd1,gpt1)
chainloader +1
but grub told me
error: invalid EFI file path
So that's about it. It appears that grub-mkconfig is having trouble locating the kernel/initrd so it doesn't make any entries, dropping me right into a shell. I've tried booting up with my installation USB and chrooting in and reinstalling grub again but nothing seems to work. So what I'd like to try to do is just boot up into my system and then modify add the grub boot entries entries I want... but I just can't figure out what's causing all these issues.
Sorry if I mess up any terminology... still learning the ropes here. Thanks for any input.
Last edited by cogeary (2012-09-17 05:35:51)

DSpider wrote:
==> ERROR: specified kernel image does not exist: `/boot/vmlinuz-linux'
Probably because you have a separate boot partition (not just the 512 MB "UEFISYS" FAT32 partition), which you forgot to mount (in fstab).
Post your /etc/fstab.
Thank you for your reply!
However, I do not have a separate boot partition apart from the "UEFISYS" partition. Here is my fstab:
# UUID=3ec307aa-0ead-4d33-b292-42bbe783d6ee
/dev/sda2 / ext4 rw,relatime,data=ordered 0 1
# UUID=B192-6C57
/dev/sda1 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 2
When I first looked at the fstab I saw that both of the entries repeated themselves. This was because I had even tried reformatting /boot so I had to generate a new fstab, but for some reason I used ">> /mnt/etc/fstab" rather than "> ..."
So I executed
genfstab /mnt > /mnt/etc/fstab
and reinstalled grub, but still no difference... mkinitcpio fails and I reboot to a grub shell.
Last edited by cogeary (2012-09-16 18:15:51)

Grub-install: "cannot find EFI directory" (CSM mode)

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