oh yes, sure, let me put this a bit more into context… Actually I posted the issue I have in the following post, there you will see my file system. EmonPi crashes running OS on SSD - #8 by luisrodriguez7
I boot from the SD and then I have the operating system on the SSD. I have applied your proceudre in order to have persistent logs, so journals are stored in /home/pi/data/journald.logs
Here is my fstab:
pi@emonpi:~$ cat /etc/fstab
tmpfs /tmp tmpfs nodev,nosuid,size=30M,mode=1777 0 0
tmpfs /var/tmp tmpfs nodev,nosuid,size=1M,mode=1777 0 0
tmpfs /var/log tmpfs nodev,nosuid,size=50M,mode=1777 0 0
tmpfs /var/lib/dhcp tmpfs nodev,nosuid,size=1M,mode=1777 0 0
tmpfs /var/lib/dhcpcd5 tmpfs nodev,nosuid,size=1M,mode=1777 0 0
tmpfs /var/lib/openhab tmpfs nodev,nosuid,size=40M,mode=1777 0 0
#tmpfs /var/lib/php/sessions tmpfs nodev,nosuid,nofail,size=5M,mode=1777 0 0
proc /proc proc defaults 0 0
/dev/mmcblk0p1 /boot vfat defaults,noatime,nodiratime 0 2
/dev/disk/by-uuid/efbcb440-6661-4186-89cf-b7100fdddbbd / ext4 defaults,ro,noatime,nodiratime,errors=remount-ro 0 1
/dev/disk/by-uuid/049fe126-0443-4393-98c5-40a043739bb8 /mnt ext4 defaults,ro,noatime,nodiratime,errors=remount-ro 0 1
/dev/mmcblk0p3 /home/pi/data ext2 defaults,rw,noatime,nodiratime,errors=remount-ro 0 2
/home/pi/data/journald.logs /var/log/journal none defaults,bind 0 0