juergbi commented on issue #1660:
URL: https://github.com/apache/buildstream/issues/1660#issuecomment-1172875002
It currently does return "Operation not supported" as per the error message
in the first comment.
If I modify buildbox-fuse to not return the internal `user.checksum.sha256`
in listxattr, I get past that error, although I get a new one:
```
error: ioctl(EXT2_IOC_GETFLAGS): Function not implemented
Command 'ostree admin deploy --os="freedesktop-sdk" \
--sysroot="/buildstream/freedesktop-sdk/vm/minimal-ostree/image.bst/sysroot"
freedesktop-sdk-22.08beta-x86_64 \
--karg="rw" --karg=console=ttyS0' failed with exitcode 1
```
From a quick glance at ostree code I think this is the relevant code with
regards to xattrs:
```c
xattrs = ostree_fs_get_all_xattrs (src_fd, cancellable, error);
if (!xattrs)
return FALSE;
if (!glnx_fd_set_all_xattrs (tmp_dest.fd, xattrs, cancellable, error))
return FALSE;
```
And I don't see any error being special cased in libglnx
`glnx_fd_set_all_xattrs()`:
```c
if (TEMP_FAILURE_RETRY (fsetxattr (fd, (char*)name, (char*)value_data,
value_len, 0)) < 0)
return glnx_throw_errno_prefix (error, "Setting xattrs: fsetxattr(%s)",
name);
```
Dropping `user.checksum.sha256` from buildbox-fuse listxattr may be an
acceptable solution.
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