diff --git a/doc/bootable-usb-drive.md b/doc/bootable-usb-drive.md
index 793b075..5c7370a 100644
--- a/doc/bootable-usb-drive.md
+++ b/doc/bootable-usb-drive.md
@@ -1,4 +1,32 @@
-# Create Bootable USB Drive
+#  Installation/FromUSBStick
+
+[link](https://help.ubuntu.com/community/Installation/FromUSBStick)
+
+# Create Bootable USB Drive Using mkusbmin
+
+[link](https://help.ubuntu.com/community/mkusb/min)
+
+# Create Bootable USB Drive Using DebianInstall
+
+[link](https://wiki.debian.org/DebianInstall)
+
+# Create Bootable USB Drive Using UnetBootin
+
+[link](https://unetbootin.github.io/linux_download.html)
+
+# Installation + Archive + USBStick
+
+[link](https://wiki.debian.org/Installation+Archive+USBStick#Preparing_the_USB_Stick)
+
+# CreateUSBMedia
+
+[link](https://wiki.debian.org/DebianInstaller/CreateUSBMedia)
+
+# Create Bootable USB Drive Using Balena Etcher
+
+[link](https://www.pragmaticlinux.com/2021/03/create-a-bootable-usb-drive-from-a-linux-iso-image/)
+
+# Create Bootable USB Drive Manually
 
 * download debian
 
@@ -29,7 +57,9 @@ lsblk -p | grep "disk"
 sudo umount /dev/<tdb>
 ```
 
-* write the ISO file to the USB drive
+* write the ISO file to the USB drive using the following options
 ```
 sudo dd if=[ISO FILE] of=[DEVICE NAME] bs=4M conv=fdatasync status=progress
+sudo dd if=[ISO FILE] of=[DEVICE NAME] bs=4M status=progress oflag=sync
+sudo dd if=[ISO FILE] of=[DEVICE NAME] bs=4M status=progress oflag=sync
 ```
\ No newline at end of file
diff --git a/doc/ssh-pub-key-auth.md b/doc/ssh-pub-key-auth.md
index 6411922..23760fa 100644
--- a/doc/ssh-pub-key-auth.md
+++ b/doc/ssh-pub-key-auth.md
@@ -64,6 +64,11 @@ sudo vi /etc/ssh/sshd_config
 PasswordAuthentication no
 ```
 
+* save this file and restart sshd service
+```
+sudo systemctl restart sshd
+```
+
 ## Links
 
 [How to Fix SSH Failed Permission Denied (publickey)](https://phoenixnap.com/kb/ssh-permission-denied-publickey)