# Un-writeable file system

**URL:** <https://mangoh.discourse.group/t/un-writeable-file-system/1038>\
**Category:** mangOH Green\
**Created:** [December 28, 2017, 9:55pm UTC](https://mangoh.discourse.group/t/un-writeable-file-system/1038 "2017-12-28T21:55:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![rauger1](https://avatars.discourse-cdn.com/v4/letter/r/ac91a4/32.png) [@rauger1](https://mangoh.discourse.group/u/rauger1)\
**Post date:** [December 28, 2017, 9:55pm UTC](https://mangoh.discourse.group/t/un-writeable-file-system/1038/1 "2017-12-28T21:55:40Z")

</div>

I am trying to set up a wifi-dongle similar to the one in this similar question:[WLAN USB adapter to MangOH - #3 by JayM2M - Legato Application Framework - Legato Forum](http://forum.legato.io/t/wlan-usb-adapter-to-mangoh/179/3)

Unlike the person asking this question, I have successfully cross compiled the driver and moved it to the machine. Unfortunately, I can’t get the file where it needs to be. In order for the driver to be recognized, It needs to be in the path: /lib/modules/3.14.29ltsi-961ca71325\_ab5094eade/kernel/net/wireless/ , but this path is impossible to write to:

cp 8192eu.ko  
/lib/modules/3.14.29ltsi-961ca71325\_ab5094eade/kernel/net/wireless/  
and I receive the error:

> cp: can’t create  
> ‘/lib/modules/3.14.29ltsi-961ca71325\_ab5094eade/kernel/net/wireless/8192eu.ko’:  
> Read-only file system

tried remounting the file system in the following ways:

> mount -o remount, rw /
> 
> mount -o remount,rw /

I found other posts suggesting that the syntax was:

> sudo mount -o remount,rw /partition/identifier /mount/point

So I ran:

> root@swi-mdm9x15:~# mount -v | grep “^/” | awk ‘{print "\nPartition  
> identifier: " $1 "\n Mountpoint: " $3}’
> 
> Partition identifier: /dev/ubiblock0\_0 Mountpoint: /
> 
> Partition identifier: /dev/ubi2\_0 Mountpoint: /mnt/flash
> 
> Partition identifier: /dev/ubiblock1\_0 Mountpoint: /mnt/legato
> 
> Partition identifier: /dev/mtdblock5 Mountpoint: /mnt/userrw
> 
> Partition identifier: /dev/ubi2\_0 Mountpoint: /legato
> 
> Partition identifier: /dev/ubi2\_0 Mountpoint: /home
> 
> Partition identifier: /dev/ubi2\_0 Mountpoint: /legato/systems/current  
> root@swi-mdm9x15:~# mount -o remount,rw /dev/ubiblock0\_0 /  
> None of these suggestions work. Every mount command returns a 0 (success) but copying files in my file system is still not working.

Is the file system totally unwritable?

I greatly appreciate your help advance!