sdcard.txt

https://developer.ridgerun.com/wiki/index.php/High_performance_SD_card_tuning_using_the_EXT4_file_system
https://www.blogperle.de/raspberry-pi-emergency-mode-and-root-account-locked-mounting-usb-disk-with-fstab/

#Create new FS
#mkfs.ext4 /dev/sda1

#Enable writeback mode.
#Written to the disk before the journal. This mode will typically provide the best ext4 performance
sudo tune2fs -o journal_data_writeback /dev/sda2
#Delete has_journal option
sudo tune2fs -O ^has_journal /dev/sda2
sudo tune2fs -r0 /dev/sda2

sudo fsck -fy /dev/sda2
sudo mkdir /media/flash; sudo chown pi.pi /media/flash; sudo chmod 755 /media/flash

cat << EOF | sudo tee -a /etc/fstab
/dev/sda2             /media/flash      ext4    defaults,nofail,x-systemd.device-timeout=5,noatime,nodiratime,data=writeback        0       0
EOF

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sudo tune2fs -l /dev/mmcblk0p2 | grep Last\ c
sudo touch /forcefsck
sudo reboot

----------------------------------------------------------------
NTFS

sudo mkdir /media/video; sudo chown pi:pi /media/video; sudo chmod 775 /media/video

sudo apt install -y ntfs-3g

DISK="sdb"
DISK="sda"

PARTNUM=$(sudo parted -m /dev/${DISK} print | grep ntfs | head -n1 | cut -f1 -d:) ; echo ${PARTNUM}
if [ -z "$PARTNUM" ]
then
      echo "\$PARTNUM is empty"
else
      echo "\$PARTNUM is NOT empty"
      NTFSLABEL=$(sudo ntfslabel --no-action /dev/${DISK}${PARTNUM})
      echo "LABEL=$NTFSLABEL     /media/video     ntfs-3g     defaults,nofail,x-systemd.device-timeout=5,rw,relatime,user_id=0,group_id=0,allow_other   0   0" | sudo tee -a /etc/fstab
fi