original brew update Error needs to run git fetch --unshallow, but got another git fatal

user_14773962 0
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$ brew update
Error: homebrew-core is a shallow clone. To `brew update` first run:
  git -C "/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core" fetch --unshallow

I tried to run above command: git ... --unshallow but I got another error:

fatal: dumb http transport does not support shallow capabilities

$ brew -v
Homebrew 2.6.0-104-g24f7898
Homebrew/homebrew-core (git revision b1ef15; last commit 2020-12-05)
Homebrew/homebrew-cask (git revision 443e7; last commit 2020-08-27)

Anyone can help?

homebrew
3 Answers

I dug a little after trying to deal with the git repo, but the simplest thing that fixed it for me was untapping and then retapping the casks repo

brew untap homebrew/cask
brew tap homebrew/cask

that put everything back in order.

I haven't RTFM'd lately, but I'm guessing this has something to do with how casks seem to be moving into the main homebrew repo (or at least that's how it seems as a naive user).

user_611300

I tried to run: $ git -C "/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core" fetch

then: $ git -C "/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core" fetch --unshallow

brew update seems OK now.

user_147739620

In my case I was getting this

$ brew update
ERROR: Repository not found.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
Error: Fetching /usr/local/Homebrew/Library/Taps/myf/homebrew-formulas failed!

Notice the myf/homebrew-formulas in the last line. This is one of my old repos not accessible anymore.

I got it solved with

$ brew untap myf/homebrew-formulas

Untapping myf/formulas...
Untapped 5 formulae (37 files, 63KB).

Other commands I tried

$ brew upgrade
$ brew update-reset
$ brew doctor
user_11830980
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