From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karel Zak Subject: Re: [PATCH] add readonly overlay support for dmsquash Date: Fri, 26 Feb 2010 21:23:26 +0100 Message-ID: <20100226202326.GG8702@nb.net.home> References: <1267195469-32522-1-git-send-email-jboggs@redhat.com> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <1267195469-32522-1-git-send-email-jboggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> Sender: initramfs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Joey Boggs Cc: initramfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org On Fri, Feb 26, 2010 at 09:44:29AM -0500, Joey Boggs wrote: > # set up the snapshot > - echo 0 `blockdev --getsize $BASE_LOOPDEV` snapshot $BASE_LOOPDEV $OVERLAY_LOOPDEV p 8 | dmsetup create live-rw > + echo 0 `blockdev --getsize $BASE_LOOPDEV` snapshot $BASE_LOOPDEV $OVERLAY_LOOPDEV p 8 | dmsetup create $readonly_overlay live-rw ^^^^^^^^^^^^^^^^^ Don't use --getsize, this option is deprecated and it's based on BLKGETSIZE ioctl that returns *32-bit* sector count (= 2TiB only). Please, use --getsz. For more details see blockdev(8) man page. Karel -- Karel Zak