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faq [2014/08/20 23:11] Vegar [Enable serial console] remove typo |
faq [2016/09/10 14:51] (current) golden-guy Add section on changing default governor |
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| - | ====== FAQ ====== | + | This is the Users Wiki FAQ Page. It is intended for users to add their own FAQ to assist other users. |
| + | If a user generated FAQ is of sufficient interest to other users it may be moved to the global FAQ at http://www.xbian.org/faq/, | ||
| - | This page contains answers and solutions to Frequently Asked Questions and/or common issues. | + | If this happens and you need to update or report an issue, please post you comments along with the corresponding entry to http://forum.xbian.org/thread-2768.html |
| - | ===== Changing SSH port ===== | + | ===== FAQ ===== |
| - | >//"How do I change the SSH port?"// | + | ==== Change CPU governor policy ==== |
| + | Per default, //performance// governor is active when Kodi is in use (i.e. no screensaver is active). When Kodi is running idle (with screensaver on), xbian switches to //conservative// governor. To change the governor for active use to //ondemand//, append this line to **/etc/default/xbian-module-init-tools**: | ||
| - | On XBian the SSH daemon runs behind //inetd//. That's why you have to change the listening port in ///etc/services// instead of in ///etc/ssh/sshd_config//. Alternatively you can configure SSH to start in standalone mode - that way you can still use the ///etc/ssh/sshd_config// file to set the port. | + | //CPUFREQ_GOVERNOR="ondemand"// |
| - | + | Note that if you do not set a screensaver, the governor will not fall back to //conservative//, but will instead stick to //performance// or //demand//, depending on your setup. | |
| - | === Changing SSH port when using inetd === | + | |
| - | Edit ///etc/services// with your preferred text editor and find the following 2 lines: | + | |
| - | + | ||
| - | <code>ssh 22/tcp # SSH Remote Login Protocol | + | |
| - | ssh 22/udp</code> | + | |
| - | + | ||
| - | Then change "//22//" to your desired port. Afterwards restart //inetd// to apply the change: | + | |
| - | <code>$ sudo restart openbsd-inetd</code> | + | |
| - | + | ||
| - | + | ||
| - | === Changing SSH port when using standalone mode === | + | |
| - | + | ||
| - | To enable the standalone mode, remove the line "//manual//" from ///etc/init/ssh-hid.override//. You can now change the port in ///etc/ssh/sshd_config// and then start the service with <code>$ sudo start ssh-hid</code> | + | |
| - | + | ||
| - | ===== Run a script at startup ===== | + | |
| - | + | ||
| - | >//"How do I get a script running automatically at startup?"// | + | |
| - | + | ||
| - | The easiest way to do so, is editing the file ///etc/rc.local//. In this file you can put in any command you want to run at startup. There are three important things you have to consider: | + | |
| - | * your command must be put before the line //exit(0)// | + | |
| - | * by default commands in ///etc/rc.local// are executed as root | + | |
| - | * to keep the command running in the background you have to end the command with an //&// | + | |
| - | + | ||
| - | === Example: === | + | |
| - | If you want to run the script as user //xbian// and keep the script running in the background, you have to add a line like this: | + | |
| - | + | ||
| - | <code>su xbian -c "/path/script &"</code> | + | |
| - | + | ||
| - | before the //exit(0)// line in ///etc/rc.local//. | + | |
| - | + | ||
| - | If you want to run the script as root, adding the part in the quotes (///path/script &//) is already enough. \\ | + | |
| - | If it's a command which shouldn't stay running in the background, you have to remove the //&// sign at the end. | + | |
| - | + | ||
| - | ===== CuBox-I ===== | + | |
| - | + | ||
| - | ==== cmdline paramaters ==== | + | |
| - | + | ||
| - | Edit the ''/boot/boot.src.txt'' file and run ''/boot/mks'' afterwards. | + | |
| - | + | ||
| - | ==== HDMI2VGA adapter ==== | + | |
| - | + | ||
| - | If you are using one of these adapters, you may need to change the ''/boot/boot.src.txt'' file from: | + | |
| - | <code> | + | |
| - | setenv baseconfig ahci_imx.hotplug=1 raid=noautodetect telnet root=/dev/mmcblk0p2 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24 rootwait consoleblank=0 selinux=0 nohdparm splash | + | |
| - | </code> | + | |
| - | to | + | |
| - | <code> | + | |
| - | setenv baseconfig ahci_imx.hotplug=1 raid=noautodetect telnet root=/dev/mmcblk0p2 video=mxcfb0:dev=hdmi,1280x720@60,if=RGB565 rootwait consoleblank=0 selinux=0 nohdparm splash | + | |
| - | </code> | + | |
| - | + | ||
| - | If you video mode is incorrect, it can result in a reboot loop. | + | |
| - | + | ||
| - | ==== Enable serial console ==== | + | |
| - | To enable the serial console, add ''console=ttymxc0,115200'' to the command line, after ''setenv baseconfig''. The third line in /boot/boot.src.txt should look something like this: | + | |
| - | <code> | + | |
| - | setenv baseconfig console=ttymxc0,115200 coherent_pool=1M rw ahci_imx.hotplug=1 raid=noautodetect telnet root=/dev/mmcblk0p2 video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24 rootwait consoleblank=0 selinux=0 nohdparm splash dmfc=3 | + | |
| - | </code> | + | |
| - | Run /boot/mks to activate the change. | + | |
| - | + | ||
| - | To enable a terminal on the serial console, copy the file ''/etc/init/tty1.conf'' to ''/etc/init/tty3.conf''. Edit the last line in the new file, replace tty1 with ttymxc0, and 38400 with 115200. It should look like this: | + | |
| - | <code> | + | |
| - | exec /sbin/getty -8 115200 ttymxc0 | + | |
| - | </code> | + | |
faq.txt · Last modified: 2016/09/10 14:51 by golden-guy
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