# Petsc.so not found

**URL:** https://community.freefem.org/t/petsc-so-not-found/1733
**Category:** FreeFEM installation
**Created:** [May 11, 2022, 2:01pm UTC](https://community.freefem.org/t/petsc-so-not-found/1733 "2022-05-11T14:01:46Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![mrbenson](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@mrbenson](https://community.freefem.org/u/mrbenson)
#### Post date: [May 11, 2022, 2:01pm UTC](https://community.freefem.org/t/petsc-so-not-found/1733/1 "2022-05-11T14:01:47Z")

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Hello,  
I’ve just installed freefem++ under Fedora 36 using dnf, petsc dynamic lib (.so) are not installed in /usr/lib/64/f++/…

Best regards

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### Author: ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)
#### Post date: [May 11, 2022, 2:14pm UTC](https://community.freefem.org/t/petsc-so-not-found/1733/2 "2022-05-11T14:14:30Z")

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You should compile from sources if you want this.

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### Author: ![mrbenson](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@mrbenson](https://community.freefem.org/u/mrbenson)
#### Post date: [May 11, 2022, 2:25pm UTC](https://community.freefem.org/t/petsc-so-not-found/1733/3 "2022-05-11T14:25:16Z")

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I’m talking about PETSc.so used by load “PETSc”  
So the official linux package doesn’t contain the petsc module ?  
But the windows binaries contain PETSc.dll.

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### Author: ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)
#### Post date: [May 11, 2022, 2:27pm UTC](https://community.freefem.org/t/petsc-so-not-found/1733/4 "2022-05-11T14:27:04Z")

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Which “official” linux package? The only “official” packages are from [Releases · FreeFem/FreeFem-sources · GitHub](https://github.com/FreeFem/FreeFem-sources/releases), and there is no such package for Fedora.

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### Author: ![mrbenson](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@mrbenson](https://community.freefem.org/u/mrbenson)
#### Post date: [May 11, 2022, 3:16pm UTC](https://community.freefem.org/t/petsc-so-not-found/1733/5 "2022-05-11T15:16:58Z")

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[https://src.fedoraproject.org/rpms/freefem++](https://src.fedoraproject.org/rpms/freefem++)  
It’s not the official repo.

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### Author: ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)
#### Post date: [May 11, 2022, 3:19pm UTC](https://community.freefem.org/t/petsc-so-not-found/1733/6 "2022-05-11T15:19:41Z")

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Either ask the maintainers there to ship PETSc with the package, or build FreeFEM yourself with PETSc.