How to mount USB part to /jffs at boot?

[Amateur273]

RT-AC66U on 3.0.0.4.376.48_3

/bin/mount /dev/sda2 /jffs
or
/bin/mount --bind /tmp/mnt/jffs /jffs

in pre|post-mount scripts no not take effect.

admin@kgw:/jffs# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 27.0M 27.0M 0 100% /
tmpfs 117.0M 4.5M 112.5M 4% /tmp
devfs 117.0M 0 117.0M 0% /dev
/dev/mtdblock5 32.0M 1.2M 30.8M 4% /jffs
/dev/sda1 3.0G 16.5M 2.8G 1% /tmp/mnt/OPTWARE
/dev/sda2 1007.9M 1.8M 954.9M 0% /tmp/mnt/jffs
/dev/sda3 3.4G 8.5M 3.2G 0% /tmp/mnt/Data
==============
After boot, manually I can mount by both commands.

 

[RMerlin]

Mounting the USB disk there is a bad idea. The firmware expects this to be a JFFS partition, anything else could lead to unexpected results.

Pre-mount is run as the router is about to mount the disk under its expected /mnt mount point. Again, mounting a disk on two different location can lead to unexpected results.

 

[huotg01]

RT-AC66U on 3.0.0.4.376.48_3
[...].

If we can understand your final goal maybe we could better support you. What are you trying to do ?