Trying to install Entware but usb drive is readonly (R7800)

[Philip Stevenson]

Hi All,
I'm trying to install Voxel's Entware version on a usb drive as the Admin user but the usb drive is readonly. How do I get to usb drive to mount as read/write and not readonly?

Nighthawk(R) X4S R7800
Router Firmware Version (Voxel) V1.0.2.101SF
Kamoj Add-on V5.5b27

Thanks in advance

Phil

 

[fossil]

R7800 uses old version of mount cmd. Old version of mount can only mount usb/partition read-only with metadata_csum feature enabled. Disable Metadata-Checksum.

Format Ext4:

mkfs.ext4 -L <name> /dev/sda1

Disable Metadata-Checksum:

tune2fs -O ^metadata_csum /dev/sda1

Mount Read/Write:

mount /dev/sda1 /mnt/sda1/

Unmount:

umount /mnt/sda1/

Mount Readonly:

mount -r /dev/sda1 /mnt/sda1/

 

[fossil]

You can use below cmd to check if "metadata_csum" feature is enabled by "mkfs.ext4" cmd on the usb:

tune2fs -l /dev/sda1 | grep features

 

[Philip Stevenson]

R7800 uses old version of mount cmd. Old version of mount can only mount usb/partition read-only with metadata_csum feature enabled. Disable Metadata-Checksum.

Format Ext4:

mkfs.ext4 -L <name> /dev/sda1

Disable Metadata-Checksum:

tune2fs -O ^metadata_csum /dev/sda1

Mount Read/Write:

mount /dev/sda1 /mnt/sda1/

Unmount:

umount /mnt/sda1/

Mount Readonly:

mount -r /dev/sda1 /mnt/sda1/

View attachment 48980

Thanks for your help. It appears "metadata_csum" is disabled. I'm unable to umount the filesystem when login as "Admin"! Do I need to login as "Root" but I don't know the password. Please see screenshot below

 

[fossil]

Did you disable the "metadata_csum" or it was already disabled?

Try to force unmount usb:

umount -f /mnt/sda1/

If force unmount does not work unplug the usb. Check if usb is still mounted with cmd "ls -l /mnt/" [OR] "df -h" [OR] "mount | grep sda1". If it is, router reboot is needed with usb unplugged. Plug the usb in after router is rebooted.

It seems like you are using telnet to login to R7800. Enable ssh access from Voxel's readme. It uses root user by default using key based authentication.