Fix "Read-Only File System"

Understanding the Error

Filesystem is mounted as read-only or has errors.

Check Mount Status

mount | grep "ro,"
df -h
cat /proc/mounts | grep -E "sro[s,]"

Fix 1: Remount as Read-Write

# For root partition
sudo mount -o remount,rw /

# For specific mount
sudo mount -o remount,rw /mountpoint

Fix 2: Check Filesystem Errors

Filesystem may remount read-only after errors:

sudo dmesg | tail -30 | grep -i "error|remount"

# Check filesystem (unmount if possible)
sudo umount /dev/sda1
sudo fsck /dev/sda1

# For root partition, reboot into recovery mode

Fix 3: Check Disk Health

# SMART status (if available)
sudo smartctl -a /dev/sda

# Look for reallocated sectors, pending sectors, uncorrectable errors

Fix 4: Force fsck on Next Reboot

sudo touch /forcefsck
sudo reboot

Fix 5: Check for Hardware Failure

If disk is failing:

• Backup data immediately
• Replace disk (dedicated server)
• Contact Hostxpeed for VPS disk replacement

Fix 6: NFS/SMB Read-Only

# Check NFS export options
cat /etc/exports
# Should have "rw" not "ro"