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#107206 Unable to change screen resolution on Packard Bell Easy Note

Posted by Charles@Bodhi on 16 November 2017 - 09:10 PM

You shouldn't have to press a key to get the GRUB bootloader screen, I don't believe. You should by default see it for 8 seconds at boot every time.


No, single OS did skip the grub screen. Holding Shift during boot brings it up. This was a "feature" of Grub.




#107135 cannot unmount/remove usb HD

Posted by Charles@Bodhi on 12 November 2017 - 02:11 PM

Sometimes that happens. Don't worry about it. Glad it got out of the way for now. 


For future use you might need the umount command when it happens again. To know the mountpoint you can use another command that shows how that it called:

df -ha

The output is something like:

Filesystem      Size  Used Avail Use% Mounted on
# cut
/dev/sde1        40G   22G   18G  55% /media/LACIE-1

In this example I would need to give the following command for un-mounting the device /dev/sde1

sudo umount /media/LACIE-1




#107116 cannot unmount/remove usb HD

Posted by Charles@Bodhi on 11 November 2017 - 03:18 PM

See what you are trying to do is unmounting /dev/sdb1. That is impossible indeed. The prefix /dev is used for all devices in your or connected to your computer, but that location does not give access to that device. It had to be "transferred" into a "file" first. That is what the mounting does, giving it a filename in a different folder. For drives that would be /media.

The USB drive probably was inserted when booting and therefor not mounted by the filemanager with you as owner, that's why you can not unmount without sudo.

Try :

sudo umount /media/sdb1

When you insert a USB drive after being logged in the mounting will happen at a different moment and in that case you should have permissions to unmount it in the filemanager.


Hope my guessing is correct.  :unsure:




#107114 cannot unmount/remove usb HD

Posted by Charles@Bodhi on 11 November 2017 - 10:32 AM

Hi Norm,


The proper command for un-mounting is:

sudo umount /mountpoint/drivename

/mountpoint usually is /media/ 

NB: /dev/sdXY is the hardware name, never a mountpoint for a drive

/drivename usually is /sdXY (sometimes it's the label of that drive)

NB: X is a drive letter, Y is a drive number


sda usually is your internal HDD, so a USB drive would likely be sdb or sdc


You can probably find the drivename and where it is located when you look in the addressbar in your filemanager with the USB drive opened.


Hope this helps.




#107073 Linux-compatible USB to HDMI graphics adapter

Posted by Charles@Bodhi on 04 November 2017 - 09:29 PM

Devices that are using chipsets (some, not all) that come from Displaylink seem to have an Ubuntu 16.04 driver.


More info here. You might want to read the release notes from the latest version first to know which chipsets are supported. Knowing that could help you finding a nice adapter.


Hope this helps.




#107040 Installation Error

Posted by Charles@Bodhi on 30 October 2017 - 08:23 PM

Additional info.

When you have a Linux Distro installed it might be wise to not install the bootloader when installing a second Distro next to it. Ubuntu and distro's based on it (like Bodhi) uses ubiquity as installer. Starting ubiquity from the terminal gives the option to achieve that, don't remember if the GUI does this too nowadays.

sudo ubiquity --gtk_ui -b

When the new install is finished you will reboot in the existing distro where you only need to run

sudo update-grub

The next reboot will give you a choice to boot into the new distro.

Best to install your main distro first and others later so the main will be on top of the boot options without further modifications.




#107039 Installation Error

Posted by Charles@Bodhi on 30 October 2017 - 08:09 PM

Well, I hope you are used to the terminal then, the following should repair grub. Boot the live-CD to work in.


1. Replace sda2 with the device name for the system you need to repair.
2. Replace sda1 with the device name where your EFI is located.
The command sudo parted -l should tell you the partition numbers
See instructions in the spoiler part.
Now grub should be correctly installed, next you still need to change the bootorder probably.
Bedtime here, so will see how that worked out tomorrow..

#107010 Bodhi Linux Construction Set and Bodhi Linux Puzzle

Posted by Charles@Bodhi on 27 October 2017 - 11:55 AM

Am I to gather/guess/understand that the firmware-b43-installer is a meta package that downloads other files when called? Otherwise, one should be able to grab the .deb(?) file and put it on a flash drive to transfer that way, yes?


Hey birdmun, show you a way to learn more about deb-packages:

apt-cache show firmware-b43-installer

This gives about all details and what it does.


In this case you see that it depends on the package "b43-fwcutter" (if needed downloads that from the repos) and it downloads broadcom firmware for some chipsets.




#106972 Screen Tearing

Posted by Charles@Bodhi on 24 October 2017 - 09:47 AM

Not quite correct.

The option -b in the command makes it run in the background.

The & (ampersand) is not part of the command but a message to release the terminal for further work instead of staying occupied until the execution of the previous command has been finished.

The && (double ampersand) followed by a command means: start the next command after the previous command has finished.


So when you type: 

epad path/to/file &

then epad will appear with the named file open and you can still use the same terminal. Omitting the & will lock the terminal until you close epad.


Strange thing with this is that the ampersand is needed with this command for this user while it is not for me. So is the need for calling sh where the startupcommand should not need this under Moksha.




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#106916 Running MacOS High Sierra via VirtualBox

Posted by Charles@Bodhi on 19 October 2017 - 08:09 AM

I have no experience with Apple equipment, nor the OS except for an iPad. I wonder  if the High Sierra Final is available as an installable ISO, if so it can be used in a Virtual Machine. I know a Win10 ISO can be downloaded in a free version when doing it from a Linux computer. I am dual booting myself without hassles except for the time settings but that can be solved. The only disadvantage with that is that you can't run both OS simultaneously, whereas a virtual machine runs inside the host. 

My only concern about Win10 in a virtual machine is updating it. My computer was delivered with Win8 installed and I am still using that license thanks to some MS code in the UEFI so I never needed to register. That would be different in a virtual machine with the Oracle EFI version.

As said, I don't know how this is handled by Apple.

You are in a rather unique situation and I doubt anyone on this forum has had experience with that. It might be wise to ask this on a larger forum like Linux Questions with a very broad userbase. They even have a special section about "containers".

Keep us posted if you find an answer, I'm very curious about it.




#106898 How to re-install Midori

Posted by Charles@Bodhi on 13 October 2017 - 07:37 PM

I seem to be getting a 404 on the link you gave, is there a better hyperlink from Ubuntu support

Remove the trailing space in the address.

That is the repository for the daily security updates for ubuntu xenial.

#106831 Where can I download the kernel source to be able to use virtualbox dkms?

Posted by Charles@Bodhi on 05 October 2017 - 02:06 PM

I'm using VirtualBox for a long time now and never needed the "kernel-source" to install virtualbox extensions (like dkms). 

But it does need the headers. Using the default kernel from the ISO the headers are present by the way. 


My post was meant to clarify some confusion related to VirtualBox and the need for "sources", nothing else.

Ubuntu uses "linux-source" for the kernel patches they make themselves. Confusion all over.  :)




#106747 Total NOOB running into a roadblock

Posted by Charles@Bodhi on 22 September 2017 - 11:42 AM

First off, welcome to the forums. Feel free to ask questions whenever you need during the learning process.


The utility that performs the installation on HDD will eat all resources of your computer. Your CD player is connected through a USB 1.x port and that is very slow with data transfer. Those is the main reasons for being terrible slow. Once you have it installed the running system takes between 100 - 200MB of RAM and is much faster than the Live CD.  

Remember current popular webbrowsers are very resource hungry, so as long as Midori can handle the pages you want to visit I would stick with that browser. 


Glad Plop helped you out.




#106687 Excessive CPU useage by menu_cached process

Posted by Charles@Bodhi on 15 September 2017 - 11:19 AM

Seems to work here.


Bodhi 4.2.0-64 fully updated as off today.

PCManFM > Open with.. > custom command --> no issues

PCManFM > Left pane Applications --> no issues


Thanks to all involved, great work !!




#106662 Excessive CPU useage by menu_cached process

Posted by Charles@Bodhi on 13 September 2017 - 08:35 PM

Very much like the way you are working together. Too bad this stuff is beyond my skills.