"sudo apt install ..." does not work

[CeciAc]

I moved this from here: https://github.com/MicrosoftDocs/WSL.de-DE/issues/10

@Oberurseler commented 14 days ago
I installed WSL2 and Ubuntu 18 (under Win10 2004) according to your indications. It works, however I cannot install any of the software I need. The "apt install" ends always wit an error. For example:_

apt-get update
Reading package lists... Done
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/
W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied)
W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied)**

or anothe example:

sudo apt install gnuplot-x11
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package gnuplot-x11

I may continue with other examples, like "gfortran" ...

Unfortunately, in this state WSL is not useful for me.
Dokumentdetails

⚠ Bearbeiten Sie diesen Abschnitt nicht. Er ist für die Verknüpfung von docs.microsoft.com zum GitHub-Artikel erforderlich.

• ID: b7a1833a-3461-2d9e-bb1e-de5d0ee3fe33
• Version Independent ID: bd4b2627-60c7-1bfe-7831-1dbde906e287
• Content: Installieren des Windows-Subsystems für Linux (WSL) unter Windows 10
• Content Source: WSL/install-win10.md
• Product: dev-environment
• Technology: windows-subsystem-for-linux
• GitHub Login: @craigloewen-msft
• Microsoft Alias: crloewen

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@craigloewen-msft commented 14 days ago

Can you please try running sudo apt-get update instead? The first error indicates that you don't have sufficient permissions, and the second error could be caused because the apt package repositories haven't been updated.

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@Oberurseler commented 14 days ago

Inded, this version of the command worked and I could install gfortran and gnuplot-nox, but not gnuplot-x11.
However, I am confronted with new problems. I am not able yet to get any X display (I must set the DISPLAY !?), therefore I could get only jpeg or postscript outputs.
and the fortran compiler does not work either:

$ f95 asinh.f95
asinh.f95:2:7:

    use slatec_module
       1

Fatal Error: Can't open module file ‘slatec_module.mod’ for reading at (1): No such file or directory

I tried to install xterm:

$ sudo apt-get install xterm
Reading package lists... Done
Building dependency tree
Reading state information... Done
xterm is already the newest version (330-1ubuntu2).
0 upgraded, 0 newly installed, 0 to remove and 62 not upgraded.

also it seems to be installed, but it does not work. Funny, but under WSL1 the xterm command worked.

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@Oberurseler commented 14 days ago

I installed now gnuplot-qt that works with x11, but needs setting of DISPLAY .
I tried to set the DISPLAY, but it did not work:

$ export DISPLAY=localhost:0.0
$ xterm
xterm: Xt error: Can't open display: localhost:0.0
$
What now?

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[Oberurseler]

I do not really understand the meaning of this last move. Fact is, that the DISPLAY does not work and gfortran misses some of the libraries. Therefore the discussion has to be shown under another title, not related to "sudo apt install ...". However I do not realize what happened actually.

[Oberurseler]

Perhaps it was moved to the english page? That' s all? I suggest also the change of the title.

[craigloewen-msft]

@Oberurseler for your DISPLAY issues, WSL 2 works slightly different than WSL 1 right now with regards to accessing network resources on the Windows host. You'll need to specify an IP address, as well you'll need to make sure your X server has access control disabled.

This blog post has a great summary of the different steps for running Cypress which should help you set up!

[Oberurseler]

Thanks! I will follow the indicated blog. With the network I have no problems. I can access my institute computer without any problem by ping, ssh, scp . The only problem is having DISPLAY on the windows screen.

[Oberurseler]

Of course remains still a problem with gfortran I already described.

[Oberurseler]

I am progressing slowly, but still unable to use DISPLAY. I included the line defining the DISPLAY by the IP address in the .bashrc and it seems to work:

$ echo $DISPLAY
172.21.64.1:0.0
$

however that is not enough.

$ xterm
xterm: Xt error: Can't open display: 172.21.64.1:0.0
$

No hint why !
There is a long exposition of steps to follow in the aforementioned blog, but I do not see yet if all that is really needed. I must read it more carefully.

[Oberurseler]

Thank You very much! I succeeded to run my GUIs with the help of VcXsrv. Actually it was very clear explained in the blog you indicated.
The only problem remains with the "gfortran":

$ f95 asinh.f95
asinh.f95:2:7:

    use slatec_module
       1
Fatal Error: Can't open module file ‘slatec_module.mod’ for reading at (1): No such file or directory
compilation terminated.
$

How to get and install this module ?

[Oberurseler]

I convinced myself that the installed gfortran still works with f90 programs, but not with f95. On the other hand in a true Ubuntu gfortran works also with f95 programs. It would be nice to have the same possibility !

[Oberurseler]

Perhaps it makes sense to close this issue on GUIs with the succesfull reference of craigloewen-msft to

https://nickymeuleman.netlify.app/blog/gui-on-wsl2-cypress

and to start a separate issue on gfortran with f95.

[Oberurseler]

I have tried to install g95 with the binary g95-x86-linux.tgz according to the instructions but it does not work. The executable link g95 in /usr/bin is not executed as "not found"!
One can see the value of the PATH, one can add to it, but I found nowhere its proper definition. There is no .bash_profile

[craigloewen-msft]

I think we are now talking about a new issue as you've identified. I'll close this issue out as it isn't docs related, if you still are running into a technical issue with WSL could you please open a new issue on the WSL Github Repo as we track only docs issues here. Thank you! :)