Hi all,<br><br>I&#39;m using CentOS 5.2 ( kernel 2.6.18.-92.el5 ), which is based on RHEL 5.2, on a Pentium PC ( i386).<br>After looking around, I built the unionfs module from the following release patch:<br><br><a href="http://download.filesystems.org/unionfs/stable/unionfs-2.4_for_2.6.18-RHEL5.diff.gz" target="_blank">http://download.filesystems.org/unionfs/stable/unionfs-2.4_for_2.6.18-RHEL5.diff.gz</a><br>

<a href="http://download.filesystems.org/unionfs/stable/unionfs-2.3.3_for_2.6.18-RHEL5.diff.gz" target="_blank">http://download.filesystems.org/unionfs/stable/unionfs-2.3.3_for_2.6.18-RHEL5.diff.gz</a><br><br>referenced in the thread: <a href="http://www.mail-archive.com/unionfs@mail.fsl.cs.sunysb.edu/msg02973.html" target="_blank">http://www.mail-archive.com/unionfs@mail.fsl.cs.sunysb.edu/msg02973.html</a><br>
<br>on the RHEL kernel source distributed with the DVD media: <b>kernel-2.6.18-92.el5.src.rpm</b><br><br>The patch applies successfully, it compiles fine and the module gets built successfully; But when I try to insert the module ( of course after depmod -a ), I get the following error:<br>
<br><span style="font-family: courier new,monospace;">[root@localhost ~]# modprobe unionfs</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">FATAL: Error inserting unionfs (/lib/modules/2.6.18-92.el5/kernel/fs/unionfs/unionfs.ko): Unknown symbol in module, or unknown parameter (see dmesg)</span><br>
<br>The dmesg output is as follows:<br><br><span style="font-family: courier new,monospace;">unionfs: Unknown symbol vfs_splice_from</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">unionfs: Unknown symbol krealloc</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">unionfs: Unknown symbol lookup_one_len_nd</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">unionfs: Unknown symbol vfs_splice_to</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">unionfs: Unknown symbol vfs_path_lookup</span><br><br>---------------------------<br><br>I tried both unionfs-2.3.3 and unionfs-2.4 patches, with the same failure. Please guide me if I&#39;m missing anything here...<br>
<br>Thanks,<br>Nitin<br>