Moved package updates to the end of the install,

updated the installation notes.

bin/install-root

 #!/bin/bash
-apt-get -y update
-apt-get -y dist-upgrade
 apt-get -y install enscript feh ghostscript gsfonts imagemagick imagemagick-6-common imagemagick-6.q16 libjpeg9 libjpeg-progs libjxr0:armhf libjxr-tools liblqr-1-0 libmagickcore-6.q16-3 libmagickcore-6.q16-3-extra libmagickwand-6.q16-3 libnetpbm10 libwmf0.2-7 netpbm poppler-utils python3-magic python-magic rclone zsh zsh-common
 /home/pi/kiosk/bin/change-file a /etc/lightdm/lightdm.conf 'xserver-command=X -nocursor -s 0 dpms'
 /home/pi/kiosk/bin/change-file a /etc/xdg/lxsession/LXDE/autostart '@xset s noblank' '@xset s off' '@xset -dpms'
 /home/pi/kiosk/bin/change-file c /etc/rc.local 'exit 0' '#exit 0'
 /home/pi/kiosk/bin/change-file a /etc/rc.local 'sleep 9' 'sudo -u pi /home/pi/kiosk/bin/show' 'exit 0'
+apt-get -y update
+apt-get -y dist-upgrade

install-notes

@@ -64,11 +64,9 @@ This is a topic for a different set of documentation.
 
 On the "Check for Updates" screen:
 
-Just click Next and be prepared to wait for a long time.  This might be a good
-time to get lunch, or a beverage of your choice, or catch up on your email.
-This has been known to take several hours at times.
+It is recommended that you click "Skip"; updates can be installed later.  If you do choose "Next", that is fine but be prepared to wait for a long time.  This might be a good time to get lunch, or a beverage of your choice, or catch up on your email.  This has been known to take as much as six hours (or as little as twenty minutes).
 
-Once the updates finish, click to reboot the system.  After the reboot, on the pop-up information window, click "OK" to get rid of it. 
+Now click to reboot the system.  After the reboot, on the pop-up information window, click "OK" to get rid of it. 
 
 Go to the Raspberry icon at the top left corner of the screen and select Preferences -> Raspberry Pi Configuration from the pull-down menu.  Click on the "Interfaces" tab.  Change "SSH" from "Disable" to "Enable".
 
@@ -80,10 +78,17 @@ From a terminal window, on the "pi" account:
 
 cd
 git clone https://gitlab.eecs.umich.edu/don/kiosk.git
+
+Now run the installer.  The last step of the installer will be to run all Raspberry Pi operating system updates; this part can take many hours:
+
 cd kiosk
 ./install-script
 
-Set up your "rclone" credentials
+Finally set up your "rclone" credentials:
 
 cd
 rclone config
+
+(you can also copy /home/pi/.rclone.conf from a system that has already been configured with credentials).
+
+You may need to adjust paths in /home/pi/kiosk/bin/run to match your installation; in particular, change the path in the "remote" variable to reflect the slide source path on Google Drive that you are using.