— This is an appeal from an order setting aside the default, and judgment thereon, entered against the defendant Antonio Maria Lugo, and permitting him to answer in the cause. This court will not interfere with the action of the court below in making such an order as that appealed from in this case, where, as here, it appears to. have been made upon affidavit of merits, unless it affirmatively appears that the court was without jurisdiction to make, or abused its discretion in making, the order. The action was for partition of several parcels of land, designated, respectively, as A, B, C, *398D, and E. There were several defendants in the first instance, and, by amendment subsequently made, several others were brought in as defendants. Respondent Antonio Maria Lugo was one of the original defendants, and plaintiff, in his complaint, which has never been amended in that particular, avers that the respondent claims some segregated interest in that portion of the lands sought to be partitioned, and designated as tract A, the exact nature and extent of which is not accurately known to plaintiff; and in another and prior portion of the complaint he alleges that he and the defendants named, of whom the respondent is one, “ hold and are in possession, and are the owners and tenants in common, as hereafter set out,” of the several tracts of land designated as above stated. A certificate headed “ Office of the sheriff, Los Angeles County, California,” and dated May 14, 1885, is indorsed upon the alias summons, reciting that the respondent was served, by delivering to him a true copy of said summons, at the county of Los Angeles, on the 14th of April, 1885, and is signed “ M. G-. Aguirre.” This is not made as, and does not purport to be, an affidavit of service. Aguirre was not the sheriff of the county, and if he was deputy sheriff, or acting as such, as is now claimed, the fact is entirely immaterial. As proof of service, the certificate was and is void. “ The act and return of a deputy is a nullity, unless done in the name and by the authority of the sheriff.” (Joyce v. Joyce, 5 Cal. 449; Rowley v. Howard, 23 Cal. 403.) The certificate being a nullity, it was as if no return or proof of service had been made. There was therefore no authority to enter the default of the defendant. The clerk in entering defaults exercises no judicial functions, but acts merely in a ministerial capacitjq and unless he confines himself strictly within the statute, his acts can have no binding force. (Willson v. Cleaveland, 30 Cal. 198; citing Stearns v. Aguirre, 7 Cal. 443; Kelly v. Van Austin, 17 Cal. 564; Glidden v. *399Packard, 28 Cal. 651.) Before default can be regularly taken against a party, there must be positive and sufficient evidence in court of due service, and no substantial defect in that respect can be cured by subsequent knowledge of the fact. (Johnson v. Delbridge, 35 Mich. 436.) If proof of service of summons is not made as required by law, the court acquires no jurisdiction of the persons of defendants, and has no authority to render judgment against them. Any judgment rendered is therefore invalid and void. (Lyons v. Cunningham, 66 Cal. 42, and cases there cited.)

The default of this respondent was entered by the clerk June 17, 1885, upon no other proof of service than that furnished by this certificate. Subsequently the complaint was amended, but it does not appear that the amended complaint was ever served upon this respondent. Such service is required by section 472 of the Code of Civil Procedure, and without it no judgment by default could be entered against him. “ The right to answer an amended pleading is one of which a party cannot be deprived, even after entry of default against him on the original pleading; for where a plaintiff amends in matter of substance (and in an action of partition, the bringing in of new parties alleging that they have or claim an interest in the subject of partition is matter of substance), he, in effect, opens the default on the original pleading, and must serve his amended pleading upon all the parties, including the defaulting defendant.” (Thompsons v. Johnson, 60 Cal. 292.) Findings were filed and decree entered January 29,1886. In the findings, the court recites the fact that certain defendants, among them this respondent, had been duly served with summons, and had not appeared, and their defaults had been duly and regularly taken and entered. Appellant claims that by reason of this finding the judgment was not void, but, at most, simply voidable, and that it cannot be attacked collaterally. There would be some force in this argument if *400a finding of due service was conclusive proof of the fact as against a defendant who had not answered; but under section 670 of the Code of Civil Procedure, such a finding is not conclusive as against the evidence required to be in, and when found in, the judgment roll. By reference to subdivision 1 of that section, it will be seen that if the complaint be not answered by any defendant, the summons, with the proof of service thereof, must be made a part of the judgment roll. If it be answered, then that fact is sufficient proof of service or of waiver. In this case, that which was claimed to be proof of service was made a part of the judgment roll, and comes up as such to this court. As we have seen, the proof is a nullity, and furnished no authority for entering the default of the defendant. It follows that the judgment entered thereon was invalid and void. (Lyons v. Cunningham, 66 Cal. 42.) Motion to vacate a judgment on the ground that it is void is not a collateral but a direct attack. (People v. Mullan, 65 Cal. 396; People v. Greene, 74 Cal. 400.)

But it is claimed that the court has no power to vacate a judgment so entered upon motion, after the lapse of one year. Even if this were true (but we do not concede that it is, where, as here, the judgment is void on the face of the record, and the authorities cited in support of the proposition do not sustain it), it would not help the appellant in this case; for an appeal was taken by the plaintiff from the judgment, which we have so far been considering, and the same was reversed, so far as affected the right of plaintiff to have partition of tracts A, D. and E, and affirmed in other respects. (Reinhart v. Lugo, 75 Cal. 639.) Tract A is the one in which the complaint admits that this respondent is, or claims to be to some extent, an owner, tenant in common, and in possession. When the judgment as to the plaintiff’s rights to partition in this tract” was reversed, it vacated and set aside the whole judgment as to the tract, for a judgment in partition cannot be piecemeal; and as to *401that tract, it was as if no judgment had been entered., The court below correctly so understood it, and when the case was tried again, again passed upon and determined the rights of all parties, including those of this respondent, in the tract. Again it acted, as before, upon the default, of this respondent, evidenced and entered as before; and, as a consequence, its judgment, like the first, Was, as against this respondent, “invalid and void.” This judgment was entered February 12,1889, and it was the only judgment standing against the respondent in the case, so far as related to tracts A, D, and E. Notice of motion to vacate it was given July 8, 1889, to be heard on the 15th of the same month, and was determined on the IGth of September, 1889; so that, even according to appellant’s own theory, it was not too late.

But it is claimed that the court ought not to have vacated the judgment, because at the hearing appellant made proof of the fact of service of summons at the time mentioned in the certificate above referred to. That would not justify the court in refusing to vacate the judgment. The default and judgment were void, not because there was no service, but because there was, at the time of entering the same, no proof of service. This new proof might have been sufficient to have-authorized the court, at any time after it was made,, if the defendant had not answered, or had leave to answer, to enter a valid default, and thereupon to proceed to a valid judgment, but it would not operate, by relation, to make that valid which when entered was void.

In any view we take of the case, it does not appear that, the court was without jurisdiction to make the order appealed from, and, there being a sufficient affidavit of' merits, it does not appear that there was any abuse of discretion.

Order affirmed.

Paterson, J., and Works, J., concurred.