Date: Tue, 15 May 2012 06:10:10 GMT From: vermaden <vermaden@interia.pl> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/167905: zfs set canmount=on UNMOUNTS dataset Message-ID: <201205150610.q4F6AAj0090229@red.freebsd.org> Resent-Message-ID: <201205150620.q4F6K2gR037945@freefall.freebsd.org>
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>Number: 167905 >Category: kern >Synopsis: zfs set canmount=on UNMOUNTS dataset >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Tue May 15 06:20:02 UTC 2012 >Closed-Date: >Last-Modified: >Originator: vermaden >Release: 9.0-RELEASE >Organization: >Environment: 9.0-RELEASE >Description: Its possible to change CANMOUNT from ON to NOAUTO on a mounted filesystem, but its not possible to change CANMOUNT from NOAUTO to ON as it REMOUNTS that dataset even if its ALREADY MOUNTED. >How-To-Repeat: # mount | head -1 zroot/ROOT/default on / (zfs, local, noatime, nfsv4acls) # zfs get canmount zroot/ROOT/default NAME PROPERTY VALUE SOURCE zroot/ROOT/default canmount noauto local # zfs set canmount=on zroot/ROOT/default cannot unmount '/': Invalid argument >Fix: Do not remount dataset after setting CANMOUNT to ON from NOAUTO when its already mounted. >Release-Note: >Audit-Trail: >Unformatted:
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