While working through today’s code and test to-do list, I ran out of space on a required SLES 10 file system.   Fortunately, it was LVM-managed, and there was plenty of room in the volume group to stretch this thing.  I vaguely recalled just enough LVM command names (lvdisplay, lvresize) to look up the process.

Extending the logical volume was super-fast, but resize2fs failed with “can’t resize a mounted filesystem!” No way!  This was a 2.6.16 kernel: not exactly hip, but current enough to allow online resizing.

I checked mount points and saw that this was a reiserfs file system.  ReiserFS?!  Sure, that was once the SLES way, but I thought it had been deprecated since the arrest, if not for murder-related reasons, then for security and/or functional ones.  Fortunately, the LVM HOWTO rescued me: it told me to use resize_reiserfs instead, and that worked like a charm.

I’ll try to remember this in case there’s a next time.  If not, this blog post will remind me. 🙂