[U-Boot] Creating of ramdisk image causes: No space left on device

[Zvi Vered]

Hello,

I'm using u-boot for xilinx zcu102.
In order to create ramdisk image I used the command:
genextfs -d $ROOTFS -b 65536 -D rootfs_devices.tab ramdisk

But during linux boot, linux writes many message:
mdev: can't create '....': No space left on device

I tried to use 262144 instead of 65536 and also changed
CONFIG_BLK_DEV_RAM_SIZE in kernel configuration to 262144

But the errors were not resolved.

The output of df:
Filesystem           1K-blocks      Used         Available  Use%   Mounted on
/dev/root.old         261919       59492          176213     25%     /
/tmpfs                   2025516         0              2025516   0%
    /dev/shm
tmpfs                    2025516         0              2025516   0%
    /mnt/ramdisk

Can you please help ?

Thank you,
Zvika