This page describes how to get large file support (>2GB) for the smbfs filesystem on Debian Woody with a 2.4.20 linux kernel.
To be able to use files greater 2GB, your kernel must support it. I found a set of patchesfor kernel 2.4.18, enabling that on Urban's samba/smbfs page (page seems to be offline).
Unfortunatly, they could not be ablied as is on my kernel 2.4.20. So I applied the patches partly manually. For those of you, unable or uninterested in doing so, i generated a diff from my sources, which represents the patches above, adapted to my 2.4.20 kernel sources from ftp.kernel.org:
Thanks to Brad Barnett, I could correct a invalid patch, offered here before.
To apply the patch to your kernel sources, change to the
directory containing them and apply the patch by running
gzip -cd smbfs-2.4.20-lfs-unicode.patch.gz | patch
After that, you have to recompile your kernel or at least its
modules (if you have smbfs configured as module. On a Debian
system, you can create debs by calling "
buildpackage modules". These can later be installed with
dpkg -i *.deb" (IF YOU ALREADY HAVE INSTALLED A
2.4.20 KERNEL AS DEBIAN PACKAGE, YOU HAVE TO REMOVE IT
After installing the kernel, you have to reboot your system, to make use of its new features. If you only had to install some the modules, you do not have to, of course.
Now, your kernel is ready to support large files on smb shares.
To make use of the newly created features of your kernel, you have to modify your smbmount program so that it is able to tell the smbfs filesystem to enable large file support.
Thanks to Florian Sukup, I now have corrected my mistake, that
Debian Woody users do not need to patch their smbmount
program. Also Debian Woody users have to patch their smbmount
program! Debian Sarge (aka. "testing") needs no patch for
smbmount as it comes with samba-3.0beta, which includes a smbmount
program that support the "
lfs" option. So here is the
description how I did it:
Get the sources for samba by calling "
smbfs". You will get the following files and
The original sources of the package, as provided by samba.org.
The "description" file for the Debian packet manager.
The patches, applied by the Debian package maintainer, to build the package from the original sources.
The extracted contents of the original sources from above.
The patch for 2GB support can be found here: smbmount-lfs-unicode.patch.
Build the patched smbfs package like this:
cp ../smbmount-lfs-unicode.patch debian/patches
chmod +x debian/rules
The last command will build the binaries from the package and
pack them into the Debian packages. When it is finished, you can
find your new smbfs package in the directory above the current
one. Install it by typing "
dpkg -i --reinstall
../smbfs_2.2.3a-12_i386.deb". That's all.
Now you can mount samba shares with large file support by giving the "lfs" option to smbmount, e.g. like this:
smbmount //server/share /mnt/server -o lfs
The patch, I provide here may also work with other version of the samba package and other distriputions as Debian. One other version reported by Florian Sukup is samba-2.2.7a. The version of samba shiped with Debian/sarge (aka. testing), namely 3.0.0beta2, has native support for large files and does not need to be patched!