Hi all, I've tried to upgrade a FAI server from 3.1.8 to 3.2.4. Not surprisingly, things didn't work any more. After a while, I started from scratch, installing FAI and related packages and building a new nfsroot. Still, FAI does not work, and there are two points that worry me:
- The nfsroot location: I put "/srv/fai/nfsroot" into /etc/fai/make-fai-nfsroot.conf, yet the system is placed in /srv/fai/nfsroot/live/filesystem.dir". I tried fai-chboot to see what my TFTP setup should look like, and the boot append produced in pxelinux.cfg reads: "append initrd=initrd.img ip=dhcp root=/dev/nfs nfsroot=/srv/fai/nfsroot-new boot=live FAI_FLAGS=verbose,sshd,reboot FAI_ACTION=install" Trying to install a client with that throws me into BusyBox, from where I can find out that "faiserver:/srv/fai/nfsroot" is mounted under "/live/image". Wherever else I've seen a nfsroot system in use, it was mounted under "/" . - Trying several combinations of "append" parameters, I once ended up with a client having the nfsroot mounted nicely as root, that is under "/". But there, "/tmp" was read-only, as were other crucial directories of the system. This could mean that a read-write layer of filesystem was missing. And indeed, browsing the FAI docu, I found on the very last lines of the FAI-Wiki entry on XEN (not that I would be interested in that atm) a hint that one needs unionfs installed and working. This is bad news, as messing with unionfs always gives you a hard time (we're using it extensively at our site). In particular my efforts to create the unionfs kernel modules failed with errors that hint at incompatibilities between the unionfs sources (1.4) and the kernel I need it for (2.6.22). The unionfs-source change log says that 1.4 is meant for kernel 2.6.18. However, 2.6.22 is the minimum kernel version I need to get the hardware working. So my questions are: What is the correct directory structure for the nfsroot, what is the correct PXE kernel append line, and do I indeed need unionfs to get the whole thing working? Many thanks for any help, Thomas
