Rustup installation fails on raspberry pi 4 (raspbian)

[pistoni]

Problem

I need the latest version ot rustc to install the last release of home assistant, but it seems that the executables for a wrong architecture were downloaded using rustup default installation.

As a result I get

error: command failed: 'rustc': No such file or directory (os error 2)

Help or suggestions?

Thanks, Massimo

Steps

Steps followed:

---

(homeassistant) homeassistant@raspix:/srv/homeassistant $ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
info: downloading installer
warning: it looks like you have an existing installation of Rust at:
warning: /usr/bin
warning: It is recommended that rustup be the primary Rust installation.
warning: Otherwise you may have confusion unless you are careful with your PATH
warning: If you are sure that you want both rustup and your already installed Rust
warning: then please reply y' or yes' or set RUSTUP_INIT_SKIP_PATH_CHECK to yes
warning: or pass `-y' to ignore all ignorable checks.
error: cannot install while Rust is installed

Continue? (y/N) y

Welcome to Rust!

This will download and install the official compiler for the Rust
programming language, and its package manager, Cargo.

Rustup metadata and toolchains will be installed into the Rustup
home directory, located at:

/home/homeassistant/.rustup

This can be modified with the RUSTUP_HOME environment variable.

The Cargo home directory is located at:

/home/homeassistant/.cargo

This can be modified with the CARGO_HOME environment variable.

The cargo, rustc, rustup and other commands will be added to
Cargo's bin directory, located at:

/home/homeassistant/.cargo/bin

This path will then be added to your PATH environment variable by
modifying the profile files located at:

/home/homeassistant/.profile
/home/homeassistant/.bashrc

You can uninstall at any time with rustup self uninstall and
these changes will be reverted.

Current installation options:

default host triple: aarch64-unknown-linux-gnu
default toolchain: stable (default)
profile: default
modify PATH variable: yes

1. Proceed with installation (default)
2. Customize installation
3. Cancel installation

2

I'm going to ask you the value of each of these installation options.
You may simply press the Enter key to leave unchanged.

Default host triple? [aarch64-unknown-linux-gnu]

Default toolchain? (stable/beta/nightly/none) [stable]

Profile (which tools and data to install)? (minimal/default/complete) [default]

Modify PATH variable? (Y/n)

Current installation options:

default host triple: aarch64-unknown-linux-gnu
default toolchain: stable
profile: default
modify PATH variable: yes

1. Proceed with installation (default)
2. Customize installation
3. Cancel installation

1

info: profile set to 'default'
info: setting default host triple to aarch64-unknown-linux-gnu
info: syncing channel updates for 'stable-aarch64-unknown-linux-gnu'
info: latest update on 2023-04-20, rust version 1.69.0 (84c898d65 2023-04-16)
info: downloading component 'cargo'
5.8 MiB / 5.8 MiB (100 %) 3.0 MiB/s in 2s ETA: 0s
info: downloading component 'clippy'
info: downloading component 'rust-docs'
13.4 MiB / 13.4 MiB (100 %) 3.0 MiB/s in 5s ETA: 0s
info: downloading component 'rust-std'
33.2 MiB / 33.2 MiB (100 %) 3.0 MiB/s in 12s ETA: 0s
info: downloading component 'rustc'
73.4 MiB / 73.4 MiB (100 %) 2.7 MiB/s in 27s ETA: 0s
info: downloading component 'rustfmt'
info: installing component 'cargo'
5.8 MiB / 5.8 MiB (100 %) 5.6 MiB/s in 1s ETA: 0s
info: installing component 'clippy'
info: installing component 'rust-docs'
13.4 MiB / 13.4 MiB (100 %) 1.4 MiB/s in 7s ETA: 0s
info: installing component 'rust-std'
33.2 MiB / 33.2 MiB (100 %) 4.9 MiB/s in 7s ETA: 0s
info: installing component 'rustc'
73.4 MiB / 73.4 MiB (100 %) 5.3 MiB/s in 13s ETA: 0s
info: installing component 'rustfmt'
info: default toolchain set to 'stable-aarch64-unknown-linux-gnu'

stable-aarch64-unknown-linux-gnu installed - (error reading rustc version)

Rust is installed now. Great!

To get started you may need to restart your current shell.
This would reload your PATH environment variable to include
Cargo's bin directory ($HOME/.cargo/bin).

To configure your current shell, run:
source "$HOME/.cargo/env"
(homeassistant) homeassistant@raspix:/srv/homeassistant $ source "$HOME/.cargo/env"
(homeassistant) homeassistant@raspix:/srv/homeassistant $ rustup --version
rustup 1.26.0 (5af9b94 2023-04-05)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active rustc version is (error reading rustc version)
(homeassistant) homeassistant@raspix:/srv/homeassistant $ rustc --version
error: command failed: 'rustc': No such file or directory (os error 2)
(homeassistant) homeassistant@raspix:/srv/homeassistant $

Possible Solution(s)

No response

Notes

No response

Rustup version

1.26.0

Installed toolchains

all

[pistoni]

SOLVED using another architecture
arm-unknown-linux-gnueabihf

Thanks , bye

[adicarlo]

Still a bug though. In fact I see 2 bugs here:

• rustup is guessing the wrong host triple on this OS
• rustup is not clever enough to notice when it installs the wrong toolchain, leading to confusing messages when end-user attempts to run rustc or cargo

[rickburn]

Still a bug though. In fact I see 2 bugs here:

• rustup is guessing the wrong host triple on this OS
• rustup is not clever enough to notice when it installs the wrong toolchain, leading to confusing messages when end-user attempts to run rustc or cargo

Yes this! Cost me days of grief hunting the issue down.

[zachrihall]

Any update on how to fix this? I've been trying for weeks now

[smarkin-repository]

I had the same issue.

I think. it's not an issue of rustup. For some reason, raspberry OS shows that it has aarch64, but should arm.
You can try to follow commands.

lscpu | grep Arch
Architecture:                    aarch64

or

uname -a
Linux locahost 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr  3 17:24:16 BST 2023 aarch64 GNU/Linux

You will see aarch64 GNU/Linux.

OS: Linux (Unknown) aarch64
Host: Raspberry Pi 4 Model B Rev 1.1
Kernel: 6.1.21-v8+

[rbtcollins]

This seems to be relevant. https://forums.raspberrypi.com/viewtopic.php?t=349291

One data point that would be useful is the output of grep default ~/.rustup/settings.toml.

What needs to happen is someone checks two things:

1. that the shell script installs a sensible binary of rustup-init (it seems it does)
2. that the autodetection in the rust code itself selects an appropriate default host triple

If someone working on that gets stuck, we're happy to provide advice, but ultimately someone with access to the breaking environment needs to scratch this itch.

[Learningbuck]

Was this fixed? I found that root did not have Bash as default.
echo $0
bash

source $HOME/.cargo/env
export PATH="$HOME/.cargo/bin:$PATH"
rustc --version
cargo --version

root@home:/mnt/data # bash
[root@home /mnt/data]# source $HOME/.cargo/env
[root@home /mnt/data]# export PATH="$HOME/.cargo/bin:$PATH"
[root@home /mnt/data]# rustc --version
rustc 1.72.0 (5680fa18f 2023-08-23)
[root@home /mnt/data]# cargo --version
cargo 1.72.0 (103a7ff2e 2023-08-15)
[root@home /mnt/data]#

Woo!

[rami3l]

Duplicate of #3307.