kexec-bundle doesn't run

[IogaMaster]

tar is unable to copy /nix for the process to complete
Due to /nix being read only.
Is there any way to make it work?

[Mic92]

cc @farcaller who fixed it last time.

[farcaller]

Is it still a problem?

$ git rev-parse HEAD
35c20ba421dfa5059e20e0ef2343c875372bdcf3
$ nix build .
$ cat cfg
{
  services.openssh.enable = true;
}
$ ./result/bin/nixos-generate -o result2 -f kexec-bundle -c cfg
/nix/store/xr9x4bf347mg341kb3shq4ddl1akx558-kexec_bundle

The latter seems a rather valid-made bundle to me.

[IogaMaster]

It builds, just doesn't install correctly.

[farcaller]

@logaMaster you mean the resulted script doesn’t run proper or something else? Can you please elaborate on your use case? What are you trying to do and how does it fail?

[IogaMaster]

Started working on my installer project again so now I have more insight.

It tries to make the nix store, complaining that it's a read only filesystem.

[IogaMaster]

tar: nix/store/zw5haplzbwjgbp3yykhm6iprkpfppzxb-glibc-2.40-36-bin/bin: Cannot mkdir: No such file or directory
tar: nix/store/zw5haplzbwjgbp3yykhm6iprkpfppzxb-glibc-2.40-36-bin/bin/zic: Cannot open: No such file or directory
tar: nix/store/zw5haplzbwjgbp3yykhm6iprkpfppzxb-glibc-2.40-36-bin: Cannot mkdir: Read-only file system
tar: nix/store/zw5haplzbwjgbp3yykhm6iprkpfppzxb-glibc-2.40-36-bin/sbin: Cannot create symlink to ‘bin’: No such file or directory
tar: nix/store: Cannot utime: Read-only file system
tar: nix/store: Cannot change ownership to uid 0, gid 0: Read-only file system
tar: nix/store: Cannot change mode to rwxr-xr-x: Read-only file system
tar: Exiting with failure status due to previous errors