NanoPi R4S Re-size ext4 partition re-size

[rpp293]

Hi,

I am having trouble resizing the partition for my SD card that is running OpenWrt ext4 image.

I have a windows pc.

I am following the steps in this guide for my 64GB SD card:
[OpenWrt Wiki] SD card

I installed: parted, tune2fs and resize2fs in my openwrt instance via ssh.

When I run

mount -o remount,ro /

its telling me to modify the following:
/etc/fstab

When I try to modify it via winscp, it tells me the file is read only.

Any advice is greatly appreciated.

[rexbinary]

Hello, I have never edited fstab. Here are the steps I use below on my R4S that have always worked for me. I found them in the wiki somewhere but I can't seem to find them now.

Expand root partition
# Install packages
opkg install parted
 
# Identify disk name and partition number
echo -e "ok\nfix" | parted -l ---pretend-input-tty
 
# Expand root partition
parted -s /dev/mmcblk1 resizepart 2 100%
 
# Apply changes
reboot

Expand root filesystem
# Install packages
opkg install losetup resize2fs
 
# Map loop device to root partition
losetup /dev/loop1 /dev/mmcblk1p2
 
# Expand root filesystem
resize2fs -f /dev/loop1
 
# Apply changes
reboot

[rpp293]

Thank you very much.

Update: I can confirm these steps worked for my NanoPi R4s.

I was about to try the steps in this article but I did not want to mess up the partition unique identifiers.

[HOWTO] Resizing root partition on x86 (March 2023 edition) - Installing and Using OpenWrt - OpenWrt Forum

There is also this automated script [OpenWrt Wiki] Expanding root partition and filesystem but I have not tried it yet.