Can't build base compiler (and some other things) with OPAM

ninjaaron · November 5, 2024, 9:10am

Found more information about this problem:

opam broken on ubuntu 24.04 (`bwrap: operation not permitted`)

opened 12:27PM - 22 May 24 UTC

AREA: SANDBOX

I've recently upgraded my computer from kubuntu 23.10 to kubuntu 24.04. This lea…d to errors with opam. Specifically, `opam upgrade` failed at trying to build the first package (`dune.3.15.2`), and `opam switch create 4.14.1` also failed with the same error message: ``` bwrap: loopback: Failed RTM_NEWADDR: Operation not permitted ``` Doing some digging, it seems to be related to ubuntu deciding to restrict unprivileged user namespaces https://ubuntu.com/blog/ubuntu-23-10-restricted-unprivileged-user-namespaces. I found a fix, detailed here: https://etbe.coker.com.au/2024/04/24/ubuntu-24-04-bubblewrap/ which got opam working again. Config: ``` <include here the output of `opam config report`, if applicable> # opam config report # opam-version 2.1.5 # self-upgrade no # system arch=x86_64 os=linux os-distribution=ubuntu os-version=24.04 # solver builtin-mccs+glpk # install-criteria -removed,-count[avoid-version,changed],-count[version-lag,request],-count[version-lag,changed],-count[missing-depexts,changed],-changed # upgrade-criteria -removed,-count[avoid-version,changed],-count[version-lag,solution],-count[missing-depexts,changed],-new # jobs 19 # repositories 2 (http) (default repo at 76de4586) # pinned 1 (rsync) # current-switch 4.14 # ocaml:native true # ocaml:native-tools true # ocaml:native-dynlink true # ocaml:stubsdir /home/dorian/.opam/4.14/lib/ocaml/stublibs:/home/dorian/.opam/4.14/lib/ocaml # ocaml:preinstalled false # ocaml:compiler 4.14.1 ```

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Can't build base compiler (and some other things) with OPAM

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