Le 02/01/2016 11:27, karl@??? a écrit :
> Initrd would be an alt. solution in the nfs case, but there you
> basically have the same split, initrd beeing the small fs, nfs-/
> beeing the big.
That's a case where initramfs is really usefull because you can do
a lot of tricks in the initramfs (including an interactive session). If,
then, you only mount /usr, /var and /home, you cannot consistently run
package management tools, because they modify also files which aren't
under these mountpoint, and modifications to your initramfs are lost at
reboot.
Therefore, when you are done with the sequence in initramfs, you
must end up with a pivot-root to an nfsroot. This nfsroot is on the NFS
server, typically all on the same partition (eg /srv) and there is no
benefit at all in having a /usr in it, except this is what the packages
expect.
Didier