Update readme for latest version of rpi-update

README.md

@@ -8,19 +8,11 @@ To install the tool, run the following command:
 
     sudo apt-get install rpi-update
 
-## Installing on other OS
-
-### Preparations
-
-You need git installed to use this too. To install run:
-
-    sudo apt-get install git-core
-
 ### Installing
 
 To install the tool, run the following command:
 
-    sudo wget https://raw.github.com/Hexxeh/rpi-update/master/rpi-update -O /usr/bin/rpi-update && sudo chmod +x /usr/bin/rpi-update
+    sudo curl -L --output /usr/bin/rpi-update https://raw.github.com/Hexxeh/rpi-update/master/rpi-update && sudo chmod +x /usr/bin/rpi-update
 
 ## Updating
 
@@ -62,6 +54,19 @@ You can disable this behavior by:
 Will update everything **except** the `kernel.img` files and the kernel modules.
 Use with caution, some firmware updates might depend on a kernel update.
 
+#### `SKIP_BACKUP`
+
+    sudo SKIP_BACKUP=1 rpi-update
+
+Avoids making backup of /boot and /lib/modules on first run.
+
+#### `SKIP_REPODELETE`
+
+    sudo SKIP_REPODELETE=1 rpi-update
+
+By default the downloaded files (/root/.rpi-firmware) are deleted at end of update.
+Use this option to keep the files.
+
 #### `ROOT_PATH` and `BOOT_PATH`
 
     sudo ROOT_PATH=/media/root BOOT_PATH=/media/boot rpi-update