From 2f3098a18d7560cb6539df45af6870a95bee8a43 Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sat, 22 Apr 2023 01:23:28 +0200
Subject: [PATCH 1/6] Support older kernels

---
 run/run.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/run/run.sh b/run/run.sh
index 8cc935f..126aecb 100755
--- a/run/run.sh
+++ b/run/run.sh
@@ -3,7 +3,7 @@ set -eu
 
 # Docker environment variabeles
 
-: ${URL:=''}.                     # URL of the PAT file
+: ${URL:=''}                      # URL of the PAT file
 : ${DEBUG:=''}.               # Enable debug mode
 : ${ALLOCATE:='Y'}       # Preallocate diskspace
 : ${CPU_CORES:='1'}     # Amount of CPU cores
@@ -67,4 +67,8 @@ set -m
 )
 set +m
 
-pidwait -F "${_QEMU_PID}" & wait $!
+if (( $(echo "$(uname -r | cut -d '.' -f 1-2) > 5.2" |bc -l) )); then
+  pidwait -F "${_QEMU_PID}" & wait $!
+else
+  tail --pid "$(cat ${_QEMU_PID})" --follow /dev/null & wait $!
+fi

From 979adebebae29c8a0a4fed0ff2ff3082ce790826 Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sat, 22 Apr 2023 01:27:25 +0200
Subject: [PATCH 2/6] Add bc

---
 Dockerfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Dockerfile b/Dockerfile
index 4cf0cc8..28cede6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,6 +11,7 @@ FROM debian:bookworm-20230411-slim
 
 RUN apt-get update && apt-get -y upgrade && \
     apt-get --no-install-recommends -y install \
+	bc \
 	curl \
 	cpio \
 	wget \

From fdbaccab14d44a855d91a5c646ce4906e86d7fc4 Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sat, 22 Apr 2023 01:36:16 +0200
Subject: [PATCH 3/6] Remove bc

---
 Dockerfile | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 28cede6..4cf0cc8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,6 @@ FROM debian:bookworm-20230411-slim
 
 RUN apt-get update && apt-get -y upgrade && \
     apt-get --no-install-recommends -y install \
-	bc \
 	curl \
 	cpio \
 	wget \

From ba9d814219cd8db47f36d001a496600216fb7761 Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sat, 22 Apr 2023 01:38:55 +0200
Subject: [PATCH 4/6] Detect kernel version

---
 run/run.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/run/run.sh b/run/run.sh
index 126aecb..abe5589 100755
--- a/run/run.sh
+++ b/run/run.sh
@@ -13,6 +13,8 @@ set -eu
 echo "Starting Virtual DSM for Docker v${VERSION}..."
 
 STORAGE="/storage"
+KERNEL=$(uname -r | cut -b 1)
+
 [ ! -d "$STORAGE" ] && echo "Storage folder (${STORAGE}) not found!" && exit 69
 [ ! -f "/run/run.sh" ] && echo "Script must run inside Docker container!" && exit 60
 
@@ -67,7 +69,7 @@ set -m
 )
 set +m
 
-if (( $(echo "$(uname -r | cut -d '.' -f 1-2) > 5.2" |bc -l) )); then
+if (( KERNEL > 4 )); then
   pidwait -F "${_QEMU_PID}" & wait $!
 else
   tail --pid "$(cat ${_QEMU_PID})" --follow /dev/null & wait $!

From c97735f567f792cd87ba553fdc8e808d11f7d870 Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sat, 22 Apr 2023 01:40:03 +0200
Subject: [PATCH 5/6] Check kernel version

---
 run/network.sh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/run/network.sh b/run/network.sh
index 1df4c84..63cfed2 100644
--- a/run/network.sh
+++ b/run/network.sh
@@ -112,8 +112,10 @@ configureNAT () {
   iptables -t nat -A PREROUTING -i "${VM_NET_DEV}" -p tcp  -j DNAT --to $VM_NET_IP
   iptables -t nat -A PREROUTING -i "${VM_NET_DEV}" -p udp  -j DNAT --to $VM_NET_IP
 
-  # Hack for guest VMs complaining about "bad udp checksums in 5 packets"
-  iptables -A POSTROUTING -t mangle -p udp --dport bootpc -j CHECKSUM --checksum-fill || true
+  if (( KERNEL > 4 )); then
+    # Hack for guest VMs complaining about "bad udp checksums in 5 packets"
+    iptables -A POSTROUTING -t mangle -p udp --dport bootpc -j CHECKSUM --checksum-fill || true
+  fi
 
   #Enable port forwarding flag
   [[ $(< /proc/sys/net/ipv4/ip_forward) -eq 0 ]] && sysctl -w net.ipv4.ip_forward=1

From 9c4a000d403ed1d4944b670c32241c71c25501ab Mon Sep 17 00:00:00 2001
From: Kroese <kroese@users.noreply.github.com>
Date: Sat, 22 Apr 2023 01:43:02 +0200
Subject: [PATCH 6/6] Dot

---
 run/run.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/run/run.sh b/run/run.sh
index abe5589..1c7734d 100755
--- a/run/run.sh
+++ b/run/run.sh
@@ -4,7 +4,7 @@ set -eu
 # Docker environment variabeles
 
 : ${URL:=''}                      # URL of the PAT file
-: ${DEBUG:=''}.               # Enable debug mode
+: ${DEBUG:=''}                # Enable debug mode
 : ${ALLOCATE:='Y'}       # Preallocate diskspace
 : ${CPU_CORES:='1'}     # Amount of CPU cores
 : ${DISK_SIZE:='16G'}    # Initial data disk size