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Diffstat (limited to 'tvix/tests/README.md')
| -rw-r--r-- | tvix/tests/README.md | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/tvix/tests/README.md b/tvix/tests/README.md index b079a85dbd..8cb4e9a659 100644 --- a/tvix/tests/README.md +++ b/tvix/tests/README.md @@ -61,22 +61,16 @@ Run the VM like this: CH_CMDLINE=tvix.shell mg run //tvix/tests:runVM -- ``` -You'll get dropped into a shell, from which you can list the store contents: - -``` -[ 0.282381] Run /init as init process -2023/09/24 13:03:38 Welcome to u-root! - _ - _ _ _ __ ___ ___ | |_ - | | | |____| '__/ _ \ / _ \| __| - | |_| |____| | | (_) | (_) | |_ - \__,_| |_| \___/ \___/ \__| - -2023/09/24 13:03:38 Running tvix-init… -2023/09/24 13:03:38 Creating /nix/store -2023/09/24 13:03:38 Mounting… -2023/09/24 13:03:38 Invoking shell -… +You'll get dropped into an interactive shell, from which you can do things with +the store: + +``` + ______ _ ____ _ __ + /_ __/ __(_) __ / _/___ (_) /_ + / / | | / / / |/_/ / // __ \/ / __/ + / / | |/ / /> < _/ // / / / / /_ +/_/ |___/_/_/|_| /___/_/ /_/_/\__/ + /# ls -la /nix/store/ dr-xr-xr-x root 0 0 Jan 1 00:00 . dr-xr-xr-x root 0 989 Jan 1 00:00 aw2fw9ag10wr9pf0qk4nk5sxi0q0bn56-glibc-2.37-8 @@ -86,30 +80,63 @@ dr-xr-xr-x root 0 141 Jan 1 00:00 mdi7lvrn2mx7rfzv3fdq3v5yw8swiks6-hello-2.12.1 dr-xr-xr-x root 0 5 Jan 1 00:00 s2gi8pfjszy6rq3ydx0z1vwbbskw994i-libunistring-1.1 ``` -Once you're done, run `poweroff` to turn off the VM. +Once you exit the shell, the VM will power off itself. #### Execute a specific binary Run the VM like this: ``` hello_cmd=$(mg build //third_party/nixpkgs:hello)/bin/hello -CH_CMDLINE=tvix.exec=$hello_cmd mg run //tvix/tests:runVM -- +CH_CMDLINE=tvix.run=$hello_cmd mg run //tvix/tests:runVM -- ``` Observe it executing the file (and closure) from the tvix-store: ``` -2023/09/24 13:06:13 Welcome to u-root! - _ - _ _ _ __ ___ ___ | |_ - | | | |____| '__/ _ \ / _ \| __| - | |_| |____| | | (_) | (_) | |_ - \__,_| |_| \___/ \___/ \__| +[ 0.277486] Run /init as init process + ______ _ ____ _ __ + /_ __/ __(_) __ / _/___ (_) /_ + / / | | / / / |/_/ / // __ \/ / __/ + / / | |/ / /> < _/ // / / / / /_ +/_/ |___/_/_/|_| /___/_/ /_/_/\__/ -2023/09/24 13:06:13 Running tvix-init… -2023/09/24 13:06:13 Creating /nix/store -2023/09/24 13:06:13 Mounting… -2023/09/24 13:06:13 Invoking /nix/store/mdi7lvrn2mx7rfzv3fdq3v5yw8swiks6-hello-2.12.1/bin/hello -… Hello, world! -``` \ No newline at end of file +2023/09/24 21:10:19 Nothing left to be done, powering off. +[ 0.299122] ACPI: PM: Preparing to enter system sleep state S5 +[ 0.299422] reboot: Power down +``` + +#### Execute a NixOS system closure +It's also possible to invoke a system closure. To do this, tvix-init honors the +init= cmdline option, and will switch_root to it. + + +``` +CH_CMDLINE=init=/nix/store/…-nixos-system-…/init mg run //tvix/tests:runVM -- +``` + +``` + ______ _ ____ _ __ + /_ __/ __(_) __ / _/___ (_) /_ + / / | | / / / |/_/ / // __ \/ / __/ + / / | |/ / /> < _/ // / / / / /_ +/_/ |___/_/_/|_| /___/_/ /_/_/\__/ + +2023/09/24 21:16:43 switch_root: moving mounts +2023/09/24 21:16:43 switch_root: Skipping "/run" as the dir does not exist +2023/09/24 21:16:43 switch_root: Changing directory +2023/09/24 21:16:43 switch_root: Moving / +2023/09/24 21:16:43 switch_root: Changing root! +2023/09/24 21:16:43 switch_root: Deleting old / +2023/09/24 21:16:43 switch_root: executing init + +<<< NixOS Stage 2 >>> + +[ 0.322096] booting system configuration /nix/store/g657sdxinpqfcdv0162zmb8vv9b5c4c5-nixos-system-client-23.11.git.82102fc37da +running activation script... +setting up /etc... +starting systemd... +[ 0.980740] systemd[1]: systemd 253.6 running in system mode (+PAM +AUDIT -SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT -QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD +BPF_FRAMEWORK -XKBCOMMON +UTMP -SYSVINIT default-hierarchy=unified) +``` + +This effectively replaces the NixOS Stage 1 entirely. \ No newline at end of file |