brew can't set HOMEBREW_CURL_PATH to a newer version

[starrzy]

I can't use sudo, and I install brew in my home directory: ~/.linuxbrew/bin/.

After I export ~/.linuxbrew/bin/ into PATH:

export PATH=$PATH:~/.linuxbrew/bin/

I executed brew and I met this error:

Then I searched some solutions online, one of them told that HOMEBREW_DEVELOPER=1 HOMEBREW_GIT_PATH=/path/to/your/git HOMEBREW_CURL_PATH=/path/to/your/curl is OK.

I tried, but the error still exists.

I don't know how to sovle it. Can anyone help me? Thanks!

[marionrobert]

Hello, I have the same error. Did you finally solve it please? I'm totally blocked...

[gromgit]

Then I searched some solutions online, one of them told that HOMEBREW_DEVELOPER=1 HOMEBREW_GIT_PATH=/path/to/your/git HOMEBREW_CURL_PATH=/path/to/your/curl is OK.

That is more-or-less correct advice, you just used the wrong values. You should set both paths to the full pathnames of each executable, not just the directory they're in, so:

HOMEBREW_CURL_PATH=/home/rzy/software/curl/bin/curl
HOMEBREW_GIT_PATH=/home/rzy/software/git/bin/git

Also, please paste text output as text, not screenshots. It's impossible to copy-and-paste graphical characters for testing purposes, for starters.

[marionrobert]

Hello @gromgit , thank you for your advices. However, it's still not working.

I set the variables in the .zshrc file:

export HOMEBREW_CURL_PATH=/bin/curl
export HOMEBREW_GIT_PATH=/bin/git

Well, I am not sure about the path...

Then, I ran again the command (/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)")
and I have still the same error.

 ~ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
==> Found Git: ./bin/git
==> Found cURL: ./bin/curl
==> Setting HOMEBREW_DEVELOPER to use Git/cURL not in /usr/bin
==> Checking for `sudo` access (which may request your password)...
==> This script will install:
/home/linuxbrew/.linuxbrew/bin/brew
/home/linuxbrew/.linuxbrew/share/doc/homebrew
/home/linuxbrew/.linuxbrew/share/man/man1/brew.1
/home/linuxbrew/.linuxbrew/share/zsh/site-functions/_brew
/home/linuxbrew/.linuxbrew/etc/bash_completion.d/brew
/home/linuxbrew/.linuxbrew/Homebrew

Press RETURN/ENTER to continue or any other key to abort:
[sudo] password for marionrbt:
==> /usr/bin/sudo /bin/chown -R marionrbt:marionrbt /home/linuxbrew/.linuxbrew/Homebrew
==> Downloading and installing Homebrew...
remote: Enumerating objects: 27, done.
remote: Counting objects: 100% (26/26), done.
remote: Compressing objects: 100% (17/17), done.
remote: Total 27 (delta 17), reused 12 (delta 9), pack-reused 1
Unpacking objects: 100% (27/27), 18.01 KiB | 1.29 MiB/s, done.
From https://github.com/Homebrew/brew
   9e9b71bea..ea0b78638  master     -> origin/master
HEAD is now at ea0b78638 Merge pull request #14333 from asutoshpalai/arm-rbenv-fix
Error: Please update your system curl or set HOMEBREW_CURL_PATH to a newer version.
Minimum required version: 7.41.0
Your curl version:
Your curl executable:
Failed during: /home/linuxbrew/.linuxbrew/bin/brew update --force --quiet

So at the beginning, it's well written that Git wad found, also CURL. But then, it seems that my curl version is not found finally. "Your curl version:" it's blanked. The same for "your curl executable".

Any idea ? Thank in advance for your time.

[gromgit]

export HOMEBREW_CURL_PATH=/bin/curl
export HOMEBREW_GIT_PATH=/bin/git

Is there a reason you're using these values, instead of the ones I gave you earlier?

[leehanchung]

Running exactly into the same issue. Set the env vars to whereis and its still not finding it.

Ubuntu 20.04 running on WSL.

$ export HOMEBREW_GIT_PATH=/usr/bin/git
$ export HOMEBREW_CURL_PATH=/usr/bin/curl
$ env | grep HOMEBREW
HOMEBREW_GIT_PATH=/usr/bin/git
HOMEBREW_CURL_PATH=/usr/bin/curl
$ /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
==> Found Git: ./bin/git
==> Found cURL: ./bin/curl
==> Setting HOMEBREW_DEVELOPER to use Git/cURL not in /usr/bin
==> Checking for `sudo` access (which may request your password)...
==> This script will install:
/home/linuxbrew/.linuxbrew/bin/brew
/home/linuxbrew/.linuxbrew/share/doc/homebrew
/home/linuxbrew/.linuxbrew/share/man/man1/brew.1
/home/linuxbrew/.linuxbrew/share/zsh/site-functions/_brew
/home/linuxbrew/.linuxbrew/etc/bash_completion.d/brew
/home/linuxbrew/.linuxbrew/Homebrew

Press RETURN/ENTER to continue or any other key to abort:
==> /usr/bin/sudo /bin/chown -R han:han /home/linuxbrew/.linuxbrew/Homebrew
==> Downloading and installing Homebrew...
HEAD is now at 6db7732fa Merge pull request #14821 from issyl0/support-date-ranges-in-pr-reviews-query
Error: Please update your system curl or set HOMEBREW_CURL_PATH to a newer version.
Minimum required version: 7.41.0
Your curl version:
Your curl executable:
Failed during: /home/linuxbrew/.linuxbrew/bin/brew update --force --quiet
$ env | grep HOMEBREW
HOMEBREW_GIT_PATH=/usr/bin/git
HOMEBREW_CURL_PATH=/usr/bin/curl

[gromgit]

Note that the HOMEBREW_{GIT,CURL}_PATH variables are used by the brew command, not by the installer. The "Please update your system curl" error you see is actually coming from brew, and the installer resets HOMEBREW_{GIT,CURL}_PATH internally to wherever it finds a suitable git/curl in your $PATH. It apparently found both in ./bin, which is an unstable path.

In short:

1. Your system curl (and possibly git as well) is too old.
2. ./bin in your $PATH is a BIG NO-NO for both practical (one cd makes your new git/curl inaccessible--and the installer does four of them) and security reasons (one haX0r can make you run a malware ls with zero effort).
3. There's a installer bug that fails to use the binaries that were actually found. PR in progress: install: use known-good Git install#751

[leehanchung]

1. Your system curl (and possibly git as well) is too old.

It's asking for curl > 7.41 and I have 7.68. Latest git is 2.39 and I have 2.25.

:~$ curl -V
curl 7.68.0 (x86_64-pc-linux-gnu) libcurl/7.68.0 OpenSSL/1.1.1f zlib/1.2.11 brotli/1.0.7 libidn2/2.2.0 libpsl/0.21.0 (+libidn2/2.2.0) libssh/0.9.3/openssl/zlib nghttp2/1.40.0 librtmp/2.3
Release-Date: 2020-01-08
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: AsynchDNS brotli GSS-API HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL TLS-SRP UnixSockets
$ git --version
git version 2.25.1

./bin in your $PATH is a BIG NO-NO for both practical (one cd makes your new git/curl inaccessible--and the installer does four of them) and security reasons (one haX0r can make you run a malware ls with zero effort).

Thank you. I don't see that in my ~/.bashrc. But will investigate and fix.

[osalbahr]

Were you able to fix the issue? I am having the same thing in #4544.

[edith-403]

I fixed this by simply installing curl:
sudo apt-get update
sudo apt-get install curl

And then installing Homebrew with:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)

This solved the issue for me instead of using:
export HOMEBREW_CURL_PATH=$(which curl)

[osalbahr]

I'm curious, how were you able to get the error above without having curl installed from the first place? Perhaps apt-get install curl simply upgraded curl, i.e. you haven't ran apt-get upgrade for a while?

Because without curl installed, I get the following error instead of the HOMEBREW_CURL_PATHmessage:

osalbahr@bb3b313f04c5:~/install$ ./install.sh 
...
You must install cURL before installing Homebrew. See:
  https://docs.brew.sh/Installation

(Tested in a docker --rm -it ubuntu with only git and sudo installed, and FWIW Homebrew-on-Linux#requirements lists a few more)