[SOLVED] UEFI: can't access EFI varialbes

Hi,
I have followed the instalation guide, and read all about UEFI, GRUB2 with UEFI. But when I try to run grub-install
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=arch_grub --recheck --debug
I get,
Fatal: Couldn't open either sysfs or procfs directories for accessing EFI variables.
I have seen this post too that mentions booting up in UEFI mode, but I can't find any such options in my UEFI manager
http://superuser.com/questions/376470/h … -grub2-efi
The system specs:
motherboard: M5A99X
cpu: FX-8120
ram: 4 * 4GB
I have read that I should add boot flag to the UEFI partition, but I don't know how to do that in gdisk, so this is what I have so far:
/dev/sda #~3TB
sda1 - 1GB EF00 EFI System fat32
sda2 - 100MB 8300 ext2
sda3 - 3GB 8200 swap
sda4 - 50GB 8300 ext4 #root
sda5 - 2.7TB 8300 ext4 #home
I have tried everything I could find on the web, please help or help me find some new ideas. Thank you
PS: I can normally install ubuntu that uses grub2 so I know it should be possible and it doesn't even have the extra efi partition which is weird.
Last edited by zidarsk8 (2012-09-03 18:08:00)

the.ridikulus.rat wrote:
zidarsk8 wrote:
Hi,
I have followed the instalation guide, and read all about UEFI, GRUB2 with UEFI. But when I try to run grub-install
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=arch_grub --recheck --debug
I get,
Fatal: Couldn't open either sysfs or procfs directories for accessing EFI variables.
I have seen this post too that mentions booting up in UEFI mode, but I can't find any such options in my UEFI manager
That error is shown by efibootmgr. That error will go only if you "modprobe efivars" after booting in UEFI mode. To check whether you have booted correctly, check whether "/sys/firmware/efi/vars/" directory is non-empty. If that directory is empty or non existing even after loading efivars module, then you have not booted in UEFI mode.
Hi! We are discussing the same problem here https://bbs.archlinux.org/viewtopic.php?id=148120.
That's seems to not be true for me, since i booted in UEFI mode for sure and "modprobe efivars" doesn't give errors. I'll check "/sys/firmware/efi/vars/" to be sure but there is too many people complaining this issue to be just human error IMHO.
EDIT: directory not empty
EDIT 2: I did "modprobe efivars" before chrooting and fallowed this https://wiki.archlinux.org/index.php/GR … _systems_2 instead of the beginners guide and something changed, but when i try to bless from osx to allow the disk to boot it says:
sudo bless --folder=/Volumes/efi --file=/Volumes/efi/efi/arch_grub/grubx64.efi --setBoot
Error while getting file ID of /Volumes/efi/efi/arch_grub/grubx64.efi. Ignoring...
sudo bless --mount=/Volumes/efi --file=/Volumes/efi/EFI/arch_grub/grubx64.efi --setBoot
Can't statfs /Volumes/efi/EFI/arch_grub/grubx64.efi
So there still is something wrong in grub installation I think...
EDIT 3: so sorry for all this edit. Just a stupid error, i didn't mount the efi partition before blessing. Now grub works (i can't believe it, it's been 4 days) but it cannot find my devices, it drops me to a recovery shell, where is the error?
EDIT 4: nevermind, i was booting via usb, i inserted the hd and GRUB is working!
Last edited by ewaves (2012-09-02 15:23:20)

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teekay wrote:
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tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
09:28:41.389672 IP 192.168.0.5.37669 > 207.242.93.22.80: Flags [S], seq 3890161873, win 5840, options [mss 1460,sackOK,TS val 456489250 ecr 0,nop,wscale 6], length 0
09:28:41.426192 IP 207.242.93.22.80 > 192.168.0.5.37669: Flags [S.], seq 4011900771, ack 3890161874, win 16384, options [mss 1460,nop,wscale 0,nop,nop,TS val 0 ecr 0,nop,nop,sackOK], length 0
09:28:41.426203 IP 192.168.0.5.37669 > 207.242.93.22.80: Flags [.], ack 1, win 92, options [nop,nop,TS val 456489261 ecr 0], length 0
09:28:41.426371 IP 192.168.0.5.37669 > 207.242.93.22.80: Flags [P.], ack 1, win 92, options [nop,nop,TS val 456489261 ecr 0], length 192
09:28:41.589064 IP 207.242.93.22.80 > 192.168.0.5.37669: Flags [.], ack 193, win 65343, options [nop,nop,TS val 282118 ecr 456489261], length 1448
09:28:41.589070 IP 192.168.0.5.37669 > 207.242.93.22.80: Flags [.], ack 1449, win 137, options [nop,nop,TS val 456489310 ecr 282118], length 0
09:28:41.589181 IP 207.242.93.22.80 > 192.168.0.5.37669: Flags [P.], ack 193, win 65343, options [nop,nop,TS val 282118 ecr 456489261], length 600
09:28:41.589184 IP 192.168.0.5.37669 > 207.242.93.22.80: Flags [.], ack 2049, win 182, options [nop,nop,TS val 456489310 ecr 282118], length 0
09:28:41.589497 IP 207.242.93.22.80 > 192.168.0.5.37669: Flags [.], ack 193, win 65343, options [nop,nop,TS val 282118 ecr 456489261], length 872
09:28:41.589503 IP 192.168.0.5.37669 > 207.242.93.22.80: Flags [.], ack 2921, win 227, options [nop,nop,TS val 456489310 ecr 282118], length 0
09:28:41.616491 IP 207.242.93.22.80 > 192.168.0.5.37669: Flags [FP.], seq 2921:3034, ack 193, win 65343, options [nop,nop,TS val 282118 ecr 456489310], length 113
09:28:41.616596 IP 192.168.0.5.37669 > 207.242.93.22.80: Flags [F.], seq 193, ack 3035, win 227, options [nop,nop,TS val 456489318 ecr 282118], length 0
09:28:41.652062 IP 207.242.93.22.80 > 192.168.0.5.37669: Flags [.], ack 194, win 65343, options [nop,nop,TS val 282118 ecr 456489318], length 0
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09:30:00.167007 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [S.], seq 159355854, ack 833785786, win 4380, options [mss 1460,nop,wscale 0,nop,nop,TS val 3151313888 ecr 456512853,sackOK,eol], length 0
09:30:00.167020 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [.], ack 1, win 92, options [nop,nop,TS val 456512883 ecr 3151313888], length 0
09:30:00.167192 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [P.], ack 1, win 92, options [nop,nop,TS val 456512883 ecr 3151313888], length 144
09:30:00.383987 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [.], ack 145, win 4524, options [nop,nop,TS val 3151314106 ecr 456512883], length 0
09:30:06.346279 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [.], ack 145, win 4524, options [nop,nop,TS val 3151320069 ecr 456512883], length 1448
09:30:06.346289 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [.], ack 1449, win 137, options [nop,nop,TS val 456514737 ecr 3151320069], length 0
09:30:06.346291 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [P.], ack 145, win 4524, options [nop,nop,TS val 3151320069 ecr 456512883], length 12
09:30:06.346295 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [.], ack 1461, win 137, options [nop,nop,TS val 456514737 ecr 3151320069], length 0
09:30:06.450650 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [P.], ack 145, win 4524, options [nop,nop,TS val 3151320174 ecr 456514737], length 341
09:30:06.450657 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [.], ack 1802, win 182, options [nop,nop,TS val 456514768 ecr 3151320174], length 0
09:30:06.451024 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [P.], ack 1802, win 182, options [nop,nop,TS val 456514769 ecr 3151320174], length 191
09:30:06.658371 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [.], ack 336, win 4715, options [nop,nop,TS val 3151320382 ecr 456514769], length 0
09:30:06.868707 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [P.], ack 336, win 4715, options [nop,nop,TS val 3151320591 ecr 456514769], length 307
09:30:06.869006 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [F.], seq 336, ack 2109, win 227, options [nop,nop,TS val 456514894 ecr 3151320591], length 0
09:30:06.980473 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [.], ack 337, win 4715, options [nop,nop,TS val 3151320705 ecr 456514894], length 0
09:30:06.982140 IP 64.85.73.40.80 > 192.168.0.5.56804: Flags [F.], seq 2109, ack 337, win 4715, options [nop,nop,TS val 3151320705 ecr 456514894], length 0
09:30:06.982149 IP 192.168.0.5.56804 > 64.85.73.40.80: Flags [.], ack 2110, win 227, options [nop,nop,TS val 456514928 ecr 3151320705], length 0
^C
31 packets captured
31 packets received by filter
0 packets dropped by kernel
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>>edit: turns out root can't access the photos, either. the camera is detected and the photos load and show up in gtkam, but when i try to save them i get an error, e.g., "Problem getting 'IMG_0332.JPG' from folder '/store_00010001/DCIM/103CANON'." wtf? :?:
>>edit2: okay, i got it by adding
SYSFS{idVendor}=="04a9", SYSFS{idProduct}=="305b", GROUP:="camera"
to a 00.gphoto.udev.rules file and restarting udev (i never noticed b4, but no script? i had to kill udevd and do /usr/sbin/udevd -d).
is that just a kluge fix though? i don't know anything about udev to know if that's the best way to do it, or if there's a better, more "correct" way. i just want to be able to access the camera from now on without having to change rules or mess around with udev anymore (i thought the point of udev was to have transparency to the user? ). thanks.
>> edit again: i love having conversations with myself.
okay, i didn't even notice the gphoto.rules file bfore, but i just added the information for my camera to the file, restarted udev, and it seems to work. if the maintainer wants to add the info for canon A75 to the file, the line is:
ATTRS{idVendor}=="04a9", ATTRS{idProduct}=="305b", GROUP="camera"

lanrat wrote:
Nice conversation :-)
If your camera isn't already in gphoto.rules you should report it to package maintainer (feature request) and/or gphoto devs.
I wouldn't modify standard gphoto.rules. I'd rather put this rule in /etc/udev/rules.d/00.udev.rules:
ATTRS{idVendor}=="04a9", ATTRS{idProduct}=="305b", GROUP:="camera"
to avoid overwriting after next update.
For restarting udev there is /etc/start_udev (or udev_start or something like this - I can't remember it :-))
thanks, it is /etc/start_udev - i was looking in /etc/rc.d.
i moved it back to 00.gphoto.rules so it won't get overwritten.
now that it's verified working in the standard rules, i'll make a report to the devs to add the cam there.
is your method for doing this in the wiki? i pretty much only figured out how to do it by reading your posts. if you have time, i think it would be a great wiki item. 8)

I can't access half of my downloaded music. I get a message, "can't locate file" What is up with that? I dauthorized my computer and reloaded itunes, but it did not solve the problem. Any suggestions? Thank you.

I can't access half of my downladed music. I get a message, "can't locate file." I dauthorized my computer and reloaded itunes, but it did not help. Any suggestions? Thank you.

This happens if the file is no longer where iTunes expects to find it. Possible causes are that you or some third party tool has moved, renamed or deleted the file, or that the drive it lives on has had a change of drive letter. It is also possible that iTunes has changed from expecting the files to be in the pre-iTunes 9 layout to post-iTunes 9 layout,or vice-versa, and so is looking in slightly the wrong place.
Select a track with an exclamation mark, use Ctrl-I to get info, then cancel when asked to try to locate the track. Look on the summary tab for the location that iTunes thinks the file should be. Now take a look around your hard drive(s). Hopefully you can locate the track in question. If a section of your library has simply been moved, or a drive letter has changed, it should be possible to reverse the actions.
Alternatively, as long as you can find a location holding the missing files, then you should be able to use my FindTracks script to reconnect them to iTunes .
tt2

[SOLVED]Can't access ntfs disk in thunar

I am trying to access files from a Windows disk. I mounted it (/dev/sda1) to ~/Windows but, when trying to open it in thunar, I get a permission denied error. How can I access my disk?
Last edited by Cube_Code (2013-09-02 07:31:20)

I did a:
usermod -aG storage my_username
and a:
lsblk -no UUID /dev/sda1
then recieved the output:
32B437F9B437BE63
and added this line to my /etc/fstab:
UUID=32B437F9B437BE63 /mnt/Windows ntfs
The problem persists. What have I done wrong?

[SOLVED] UEFI: can't access EFI varialbes

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