16TB+ EXT4 Volume on OMV how-to

finas · 5. Juli 2012

In it's current form, OMV does not support EXT4 volumes greater than 16TB. The reason is that to create EXT4 volumes bigger than 16TB version 1.42 or higher of the e2fsprogs package is needed, but this is not available on squeeze, the Debian version upon OMV is based on.

The newer e2fsprogs is not available on the Debian backports repository, and so, the solution is to install by hand some packages from Ubuntu 12.04.

The folowing steps were handed to me by bezeek, from OMV irc channel. A very helpfull person that saved my day. Thanks again!!

login as root and then do the following:

get the needed packages:

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wget http://mirror.pnl.gov/ubuntu//pool/main/e/eglibc/libc-bin_2.15-0ubuntu10_amd64.deb
wget http://mirror.pnl.gov/ubuntu//pool/main/e/eglibc/libc6_2.15-0ubuntu10_amd64.deb
wget http://mirror.pnl.gov/ubuntu//pool/main/e/eglibc/multiarch-support_2.15-0ubuntu10_amd64.deb
wget http://mirror.pnl.gov/ubuntu//pool/main/e/e2fsprogs/libcomerr2_1.42-1ubuntu2_amd64.deb
wget http://mirror.pnl.gov/ubuntu//pool/main/e/e2fsprogs/libcomerr2_1.42-1ubuntu2_amd64.deb
wget http://mirror.pnl.gov/ubuntu//pool/main/e/e2fsprogs/e2fslibs_1.42-1ubuntu2_amd64.deb
wget http://mirror.pnl.gov/ubuntu//pool/main/e/e2fsprogs/e2fsprogs_1.42-1ubuntu2_amd64.deb
wget http://mirror.pnl.gov/ubuntu//pool/main/l/langpack-locales/locales_2.13+git20120306-3_all.deb

Install the packages:

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apt-get remove locales
dpkg -i libc-bin_2.15-0ubuntu10_amd64.deb
dpkg -i libc6_2.15-0ubuntu10_amd64.deb
dpkg -i multiarch-support_2.15-0ubuntu10_amd64.deb
dpkg -i multiarch-support_2.15-0ubuntu10_amd64.deb
dpkg -i e2fslibs_1.42-1ubuntu2_amd64.deb
dpkg -i e2fsprogs_1.42-1ubuntu2_amd64.deb
dpkg -i locales_2.13+git20120306-3_all.deb
locale-gen

Done. to format the volume with EXT4 do:

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mkfs.ext4 -O 64bit /dev/device ( device is your 16TB+ device name )

If you want to regain the reserved space for root user ( Default 5% ) execute the following command:

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tune2fs -m 0 /dev/sda

This will set the reserved space to 0%.

If for some reason you need a newer kernel ( I needed it to be able to use my 9265 MegaRaid card ) you can install kernel 3.2 from the Debian backport repos:
edit file /etc/apt/sources.list and add the backport repo:

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deb http://backports.debian.org/debian-backports squeeze-backports main contrib non-free

Reload the package information and install the 3.2 kernel. Then reboot.

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apt-get update
apt-get install -t squeeze-backports linux-image-3.2.0-0.bpo.2-amd64

that's it. Hope it is helpfull.

Jetzt mitmachen!