Update install_v2.sh

install_v2.sh

@@ -1,27 +1,38 @@
 #!/bin/bash
 set -euo pipefail
 
-# --- Update & Upgrade machine ---
+# --- Update & Upgrade ---
 apt update
 apt upgrade -y
 
-# --- Install prerequisites ---
-apt install -y python3 python3-dev git curl gdebi-core \
-               software-properties-common dirmngr gnupg apt-transport-https \
+# --- Prereqs ---
+apt install -y python3 python3-dev git curl \
+               gdebi-core software-properties-common dirmngr gnupg apt-transport-https \
                libssl-dev libcurl4-openssl-dev libxml2-dev
 
-# --- Install R (from Ubuntu repos, CRAN packages available) ---
+# --- R (Ubuntu repo or switch to CRAN later if you want newer) ---
 apt install -y r-base
 
-# --- Install RStudio Server (Jammy build works on Noble) ---
-RSTUDIO_DEB="rstudio-server-latest-amd64.deb"
-curl -LO https://download2.rstudio.org/server/jammy/amd64/${RSTUDIO_DEB}
-gdebi -n ${RSTUDIO_DEB}
-rm -f ${RSTUDIO_DEB}
+# --- RStudio Server (Jammy build works on Noble) ---
+ARCH=amd64
+DIST=jammy
+VER=2025.09.0-387
+BASE_URL="https://download2.rstudio.org/server/${DIST}/${ARCH}"
+DEB="rstudio-server-${VER}-${ARCH}.deb"
 
-# --- Install JupyterHub (The Littlest JupyterHub) ---
+curl -fL -o "${DEB}" "${BASE_URL}/${DEB}"
+
+# sanity check: fail if the downloaded file is suspiciously small (<50MB)
+[ $(stat -c%s "${DEB}") -gt $((50*1024*1024)) ] || { echo "Download looks wrong (file too small)"; exit 1; }
+
+gdebi -n "${DEB}"
+rm -f "${DEB}"
+
+# --- The Littlest JupyterHub ---
 curl -L https://tljh.jupyter.org/bootstrap.py | sudo -E python3 - --admin anon
 
-# --- Add R kernel to Jupyter ---
-R -e "install.packages('IRkernel', repos='http://cran.r-project.org')"
+# --- Add R to Jupyter (IRkernel) ---
+R -e "install.packages('IRkernel', repos='https://cloud.r-project.org')"
 R -e "IRkernel::installspec(user = FALSE)"
+
+echo "Done. RStudio Server: http://<server-ip>:8787  (login with a system user)"