Date: Fri, 25 Oct 2013 23:48:42 +0300 From: Kimmo Paasiala <kpaasial@gmail.com> To: Pete Erickson <redlamb@redlamb.net> Cc: FreeBSD Filesystems <freebsd-fs@freebsd.org> Subject: Re: missing files on ext2fs with 9-STABLE Message-ID: <CA%2B7WWSf59x7-B4NwN-ogbOgS_4%2BoNVpi=Cwj8n6FLnkn_RUc1g@mail.gmail.com> In-Reply-To: <20131025103746.g0u1s5xlgc0k8c48@imp.redlamb.net> References: <20131025103746.g0u1s5xlgc0k8c48@imp.redlamb.net>
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On Fri, Oct 25, 2013 at 6:37 PM, Pete Erickson <redlamb@redlamb.net> wrote: > I'm missing files on an ext2 filesystem in 9-STABLE. However, remounting the > drive in Ubuntu (12.04.3) the files are back. The missing files range from a > few KB to several GB so it's not based on the file sizes. While I've found > an ugly way past this, I'm trying to understand why I'm having the problem > in the first place. > > The ext2 fs was created in Ubuntu (12.04.3) in order to backup approx 1.4 TB > from a hardware raid ext4 fs and copy it back once I repurpose the drives as > ZFS in FreeBSD. The ext2 fs is on a gpt-labeled 3.0TB drive and I used rsync > to copy the data. Unfortunately, I'm not getting any error messages so I > have nothing to provide. > > FYI, my temp fix is mounting the raw ext2 fs to a ubuntu VM in VirtualBox > and then rsync'ing it the ZFS fs via the virtual network. While it's ugly, > it appears that it'll work. However, I'm hesitant to destroy the ext4 fs > until I'm sure that I have the data backed up. > > Any help understanding this would be appreciated. Is the filesystem larger than 2TB? I recall that the ext2 driver in FreeBSD has a severe limitation with the filesystem size that limits the usable filesystems to 2TBs, anything larger will give undefined results when used. -Kimmo
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