Re: fatal: unable to read <hash>

From: Marc Branchaud <marcnarc_at_gmail.com>
Date: Wed, 09 Aug 2023 13:03:04 UTC
On 2023-08-08 20:31, Bjoern A. Zeeb wrote:
> On Mon, 7 Aug 2023, Marc Branchaud wrote:
> 
>>
>> On 2023-08-07 01:18, Bjoern A. Zeeb wrote:
>>>
>>> %  git fsck --name-objects --connectivity-only --no-dangling
>>> error: b9cdc058e6eb1b3d8b5e29ad9b911d3da98f65a7: invalid sha1 pointer 
>>> in resolve-undo of .git/worktrees/bz_maxmodname_D32383/index
>>> Checking connectivity: 4743571, done.
>>> Verifying commits in commit graph: 100% (384308/384308), done.
>>>
>>> The good news upfront;  I could ditch that worktree and branch if that
>>> will fix things.  It has follow-up work to the 2021 things but I have
>>> a copy of that outside that git tree (I love patch files in port 
>>> trees :)
>>
>> If you no longer need the bz_maxmodname_D32383 worktree, then it 
>> sounds like the easiest solution would be deleting it -- by running
>>     git worktree remove bz_maxmodname_D32383
>> in your "main" repo (which you created with "git clone").
>>
>> (The bz_maxmodname_D32383 branch seems to be OK, according to fsck.)
> 
> And how would one gotten rid of the invalid sha1 pointer in that case?

It depends on the corruption.  The SHA1 IDs are used at all levels in 
Git -- to identify commits, "trees" and "blobs" (files).

> I removed the worktree and gc now finishes.

Glad you worked it out!

		M.