Hallo, I flashed fritzbox 4040 with openwrt-25.12.4/5, configured extroot using an 8GB USB-Stick. All installation steps run without errors, but after reboot the /overlay file system is not present.
Obviously the USB-stick was not recognized. Therefore I increased in fstab the global parameter "option delay_root '60'" to 60 seconds, without success. Tests with a second USB-stick gave the same results.
My fstab:
config global
option anon_swap '0'
option anon_mount '0'
option auto_swap '1'
option auto_mount '1'
option delay_root '360'
option check_fs '0'
config swap
option device '/dev/sda1'
option enabled '1'
config mount 'extroot'
option target '/overlay'
option uuid '113d2468-1784-4aaa-ac55-b15aefd7bd23'
option fstype 'ext4'
option enabled '1'
config mount 'rwm'
option device '/dev/mtdblock14'
option target '/rwm'
root@OpenWrt:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 4.5M 4.5M 0 100% /rom
tmpfs 120.2M 280.0K 119.9M 0% /tmp
/dev/mtdblock14 20.6M 696.0K 19.9M 3% /overlay
overlayfs:/overlay 20.6M 696.0K 19.9M 3% /
tmpfs 512.0K 0 512.0K 0% /dev
Any ideas? Help appreciated ...