search for: name_of_group

Hi, via samba, I write a file. However, after I write a file, the file is owned by my primary group. The file is used to be owned by a group whom I belong to, but that group is not my primary group. Is there any way I can write that file but still keep the group ownership? Thanks

....- 3174) for this group is well displayed by the command net groupmap list. few lines later, I see the following: do lookup_sid (S-1-5-21-. ...- 3174) for group of user S-1-5-21-..... lookup_global_sam_rid: looking up RID 3174 smbpasswd_getsampwdrid: search by sid: S-1-5-21-3174 ....- lookup_rids: name_of_group: 2 despite the error "Could not be found", it seems to find the group and its SID, GID corresponding to the group file. With this information, can you tell me if this error is a real problem or is it normal? If it is a mistake, what is the cause and how to solve the problem? If you ne...