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howto fix bootup error message "Failed to start Create Volatile Files and Directories." from "systemd-tmpfiles-setup.service"

Give is, that you get an error message while booting up your system from "systemd-tmpfiles-setup.service" with the description "Failed to start Create Volatile Files and Directories.".
By using systemctl with systemctl status systemd-tmpfiles-setup.service, you get the same description.
A quick look into the archlinux wiki offers you the solution named enable acl in your file system.
If you are running zfs as your root, you have to execute zfs set acltype=posixacl #your_pool_name. To validate if it is working, execute zfs get acltype before and after the set.

If you want to know more, you can read the following links:

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howto - cups error typecheck offending command idiv

Once in a day, my network printer stopped working. All he was printing on a paper was:

ERROR:
typecheck
OFFENDING COMMAND:
idiv
A quick look to the cups service turned out the following message.
systemctl status org.cups.cupsd.service
error: Failed to create /var/spool/cups/tmp/.hplip
If you run into this problem, it is an easy one.
Do a "df -h | grep /var" and with a high chance, you will see a "100%" or something close by right before "/var". So whats the problem? Your "/var" is running out of disk space. Use a tool like "ncdu" to check what can be removed. Printing should work right after fighting the disk space issue.

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piwik update to 2.3 results in error message >>Failed to load HTML file: Please check your server configuration. You may want to whitelist "*.html" files from the "plugins" directory. The HTTP status

Piwik got an update to version 2.3.0. The update runs smooth as general but one Error appears after the update.

Failed to load HTML file: Please check your server configuration. You may want to whitelist "*.html" files from the "plugins" directory. The HTTP status code is 403 for URL "plugins/ZenMode/angularjs/quick-access/quick-access.html"

It is a solvable one :-). Login to your webroot for your piwik installation and list the content of your "plugins" directory. As you will notice, the rights for the directory "ZenMode" (750) differs from the rest (755). Adapt the rights and the error is gone.
chmod -R 755 ZenMode

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"ERROR 1148 (42000) at line 1: The used command is not allowed with this MySQL version" after upgrade percona version 5.5.35-33.0 to 5.5.36-34.2

So the setup is the following, debian squeeze and percona version 5.5.35-33.0.
I had done an upgrade from 5.5.35-33.0 to 5.5.36-34.2-648.squeeze and the following error created an red monitor on my jenkins.

ERROR 1148 (42000) at line 1: The used command is not allowed with this MySQL version

After searching on the web, i found this entry on the web.
sudo vim /etc/mysql/my.cnf

add follwing entry to fitting locations

[mysql]
local-infile=1
[mysqld]
local-infile=1

/etc/init.d/mysql restart


Get your current used version?

mysql --user=root --password=

SHOW VARIABLES LIKE "%version%";


Check if changes are working?

mysql --user=root --password=

SHOW VARIABLES LIKE '%local%';

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arch linux, zfsonlinx with pacman update producing error >>error: demz-repo-core: signature from "graysky (used to sign repo-ck packages) <[email protected]>" is unknown trust<<

You tried to do an update of your system and got some error like below?

pacman -Syyu
error: demz-repo-core: signature from "graysky (used to sign repo-ck packages) graysky@archlinux.us" is unknown trust
:: Synchronizing package databases...
[...]
error: demz-repo-core: signature from "graysky (used to sign repo-ck packages) graysky@archlinux.us" is unknown trust
error: failed to update demz-repo-core (invalid or corrupted database (PGP signature))
[...]
error: database 'demz-repo-core' is not valid (invalid or corrupted database (PGP signature))


You can read the comments if you want to know why.
If you are easy enough and believe me (well thanks, but you shouldn't ;-)), execute the following commands.
pacman-key -r 5EE46C4C
pacman-key --lsign-key 5EE46C4C
echo i like artodeto
pacman -Syyu


And there you go.

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zfsonlinux and kernel 3.9.4-1-ARCH - up and running

Just one day, they are getting faster and faster. This time, it took only one day after the new kernel release. The steps are easy as know.

cd path/to/the/zfsonlinux/automake ant system-full-upgrade

bam and it is building on its own :-).

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howto - zfsonlinux zpool export device busy arch linux

Since i migrate to zfs where it is possible, i did this also with an usb storage. Today, i want to export a pool to use it in my laptop. I finished all i want to do and want to remove the zpool from my system via

zpool export mypool
.

The result:

umount: /foo/bar/mypoo/foobar: target is busy. (In some cases useful info about processes that use the device is found by lsof(8) or fuser(1)) cannot unmount '/foo/bar/mypoo/foobar': umount failed

Ok, maybe it needs some time to finish writing/flushing the cache so i gave him another 15 minutes. I tried again and the same error message. I used "lsof" but nothing inside when i grep for "mypool". After taking a long look over the internet, the only solution i found was using

zpool export -f mypool
but again, same error.

After strange threads talking about "you have to restart your usb module" i just took a look to the current running systemd units by using

systemctl list-units
and guess what? There are units running for each mountpoint the zfs pool had. All i had to do is to stop the unites and the run "
zpool export mypool
the last time :-).

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howto - windows 7 service windows-audio could not start - error 1079

Do you ever had the problem that you have no sound on your windows 7? I have and it was hard to find the problem, since windows is acting so ... well not expected ;-).

So you want to adjust the volume and an "here is a problem, let me search on the internat for a solution" windows is popping up. After you opened the service management and take a look at the dependencies, you started all needed service but getting the error 1079 again. What to do? Rightclick on the "windows-audio" entry and open properties ("einstellungen"). Click to tab login ("Anmeldung"), select "this account" option and enter "LocalService" as username and "0000" as password. Click Apply and try to start the service. Now everything should work smoothly.

Thanks to windows-7-forum.net to show me the way i have to look.

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Virtualbox could not start - error message says "run /etc/init.d/vboxdrv setup"

If you shell outputs something like the following don't get frustrated, the solution is just one apt-get install away! The error

WARNING: All config files need .conf: /etc/modprobe.d/blacklist, it will be ignored in a future release. Stopping VirtualBox kernel modules:. Uninstalling old VirtualBox DKMS kernel modules:. Trying to register the VirtualBox kernel modules using DKMS:Error! echo Your kernel headers for kernel 3.0.0-1-686-pae cannot be found at /lib/modules/3.0.0-1-686-pae/build or /lib/modules/3.0.0-1-686-pae/source. Failed, trying without DKMS ... failed! Recompiling VirtualBox kernel modules: Look at /var/log/vbox-install.log to find out what went wrong ... failed!

The solution

apt-get install linux-headers-3.0.0-1-686-pae /etc/init.d/vboxdrv setup

You see, your system just needs the current kernel header file and thats it.

Thanks zzeroo for the the hint

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