blog@cloud-client.info

Hello Folks,

sometimes it’s not possible to use wake on lan or the IGEL Universal Management Suite to start a client in the morning.. So what can you do in a case like this?

There is a nice Linux command called “rtcwake”, the “rtcwake” command can control the BIOS in combination with the real time clock in your device to perform some power management actions here.

For example the command rtcwake -m mem -s 10 will suspend the device for 10 seconds and then the device is back in action, it’s only one sample. To use the command to start the client at a specified time just enter something like rtcwake -m no -l -t $(date +%s -d ‘tomorrow 07:50’)

The mentioned command will configure everything and perform a system restart “tomorrow” at 7:50am, be aware this sample is not able to handle the weekend! Of course you can play around with this command, there is a good description available here: http://www.howtogeek.com/121241/how-to-make-your-linux-pc-wake-from-sleep-automatically/

I’ve tested this with the IGEL UD5 and a Universal Desktop migrated PC but it can be that this will not work on all migrated devices because the hardware needs to support it (ACPI compliant). It will also not work if you disconnect the device from power!

To use this i recommend to setup a cron job (running Monday-Thursday), see also here: https://blog.cloud-client.info/2012/10/03/tip-running-a-scheduled-job-on-an-igel-universal-desktop-lx-os-without-a-management-server/

You can also use this by using the IGEL Setup->System->Firmware Customization->Custom Commands->Desktop Commands->Custom Command Desktop Final or as seperate command/script but please be aware: In this case you have to take care for the weekend’s.

Have Fun
Michael

P.S.: Use this on your own risk!

Hello Folks,

everytime you install the Universal Desktop OS with the IGEL UDC installation dongle the license will be generated from the license smart card and installed into the Universal Desktop OS.

During this process the license will be also saved in the folder \licenses, if you now update the installation dongle with a newer installer Version these licenses will be wiped out. The issue here, if the hard disk is broken in your migrated device you need to apply a new license.

The licenses written on the UDC dongle can be also used thru the IGEL Universal Management Suite license administration console, so you can use the UMS to apply an already created license to a device.

Cheers
Michael

P.S.: Universal Desktop OS licenses are not compatible to Universal Desktop ES or LX firmwares!

Hello Folks,

if you want to Display the Client Hostname on demand just open the IGEL Setup and go to System->Firmware Customization->Custom Application and create a new custom application.

Now setup the application Name like “Show Hostname”, in the settings tab set as Icon igel and as start command notify-send-message Name $HOSTNAME

Name=Title of the window
$HOSTNAME=Display the hostname system variable

Close the setup, if now a user select the icon in the right button corner a small window with the Hostname will be displayed. That’s it…

Cheers
Michael

P.S.: Of course you can use this also with other or own created variables and add a Keyboard shortcut to this, quite helpfull for device support. You can use this also with autostart and the window will be also displayed in front of other Windows (like a Citrix Session).

Hi,
the most users doesn’t know this hidden feature… But if you want to perfom a scheduled task for an device like a system shutdown you need to setup several jobs in the Universal Management Suite server if dealing with different time zones also if no Management server is available (infrastructure to small or UMS not reachable) you maybe want to be able to run scheduled jobs too.

So how can you accomplish a task like this, first of all you need to get in touch with some IGEL LX/OS commands; i recommend to check out this small whitepaper: http://www.cloud-client.info/whitepaper/WhitepaperIGELLXOSquickcommandreference.pdf

Now create a new profile and call it “System shutdown at 7pm without UMS” or something similar, if you want to configure this local at the client you just have to open the IGEL Setup. This was tested with firmware Version 4.10.100 but i can’t guarentee that IGEL will keep this feature for the future.

Browse to System->Registry->System->Cron

To enable cron in general set enable_cron to enabled, now select cron% and click on add instance.
Expand the new instance cron0 and enter the command you want to execute, for a shutdown two ways are available:

1) With User interaction: user_shutdown
2) Without User interaction: user_shutdown -f

Enter one of these commands for your test.

Now set the excution time, use this as sample:

day of week (0 – 6) (0 is Sunday)
month (1 – 12)
day of month (1 – 31)
hour (0 – 23)
min (0 – 59)

You can use an asterisk (*) in any category to mean for every item, such as every day or every month.You can use commas (,) in any category to specify multiple values.So set the time you want to execute the job and run a test… It’s a very useful tool but you should handle it very serious!

Cheers
Michael

P.S.: Never use the update command in this way, it performs always a basic update and reduce the life time for the client memory.

Hello,

some Users have reported some issues with a freezing local Firefox Browser in the IGEL Universal Desktop LX/OS.

This freeze is not IGEL related but it seems to be an issue with older Versions of the Firefox Browser and/or memory, i’ve run also into the issue with an device running 24/7 in browser kiosk mode (public internet terminal) but now it’s fixed for me.

 To fix this perform one or more of there following steps:

1) Update to Firmware Version 4.10.100 (updated Version of Firefox)
2) In the advanced configuration of the BIOS make sure you have assigned at least 128MByte of RAM for the graphic memory in the Advanced Menu
3) Try a different version of the Adobe Flash Player, you can download different Versions from the Adobe Flashplayer download site and not all versions provide the same stability from my point of view.
4) For Universal Desktop OS converted devices make sure you’re device have at least 1GB of RAM

 Cheers

Michael