Installing optional packages - infinite loop

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Would you mind write this up for the Sagemath Installation Guide ? The process is described in the Sage develoiper's guide. Basically, you submit a patch against the Installation Guide source. It is not supe-steamlined, but it is tolerably easy, even for dummies of my kind...

Thanks a lot for your install process ! I will add: do not forget to enable virtualization in UEFI.

For me the make command begun at 11:26 end end at at 13h15 (less than 2 hours) I did not arrive to exit edit and save after,edit ~/.bashrc ! ;-( , so I used nano ;-)

and also I encounter a problem of right of access to the W10 Documents directory

ortollj@DESKTOP-K30FLRP:~$ cd /root/mnt/c/Documents\ and\ Settings/ortollj
-bash: cd: /root/mnt/c/Documents and Settings/ortollj: Permission denied
ortollj@DESKTOP-K30FLRP:~$

I suppose I have to do something in Powershell ?

OOPS !

I was wrong about my user name W10 which is simply: user !. but now with the good user name : user, I still got the pb

ortollj@DESKTOP-K30FLRP:/$ cd /root/mnt/c/Documents\ and\ Settings/user
-bash: cd: /root/mnt/c/Documents and Settings/user: Permission denied
ortollj@DESKTOP-K30FLRP:/$

The "/root" at the beginning of the path shouldn't be there, so the command would be: cd /mnt/c/Documents\ and\ Settings/user

oops again, Sorry !

ortollj@DESKTOP-K30FLRP:/mnt/c/Documents and Settings/User$ cd ~
ortollj@DESKTOP-K30FLRP:~$ pwd
/home/ortollj
ortollj@DESKTOP-K30FLRP:~$ cd /mnt/c/Documents\ and\ Settings/user
ortollj@DESKTOP-K30FLRP:/mnt/c/Documents and Settings/user$

its ok now

I confess I was genuinely surprised at how well the WSL installation worked - I was expecting a deal-breaking issue to pop up at some point and it never did :-). I can add an issue, but my motivation for the from-source install was the same as the OP's problem - I wanted to install optional packages, in my case the jupyterlab_widgets package to get interact working in JupyterLab.

@sandy_scott there is an error in step 3, it is not :

cd /mnt/c/Documents\ and\ Settings\[your windows username]

but

cd /mnt/c/Documents\ and\ Settings/[your windows username]

like you write in step 4

in Jupyter_lab part step 5, if W10 2004, it will be not :

Change Target to: ubuntu.exe run ~/sage_nb.sh

but:

Change Target to: ubuntu2004.exe run ~/sage_nb.sh

but I think that installing again on a second PC it was due to W10 2004 and also because I use Ubuntu 20.04 for WSL (because in my previous installation on another PC Change Target to: ubuntu.exe run ~/sage_nb.sh was ok despite I use also Ubuntu 20.04 !)

W10 Ubuntu 2004

C:\Users\jean-pierre>where ubuntu2004.exe C:\Users\jean-pierre\AppData\Local\Microsoft\WindowsApps\ubuntu2004.exe