stroebs · January 19, 2025 10:59 · May 9, 2022 · Mar 31, 2021 · Jan 4, 2021 · Jan 4, 2021
diff --git a/make-chr.sh b/make-chr.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Digital Ocean Ubuntu 18.04 x64 Droplet
+# Digital Ocean Ubuntu 18.04 x64 Droplet with "Regular Intel" CPU.
 # Running:
 # git clone https://gist.github.com/54fc09734a3911e91eeeb43434f117df.git
 # cd 54fc09734a3911e91eeeb43434f117df/

diff --git a/make-chr.sh b/make-chr.sh
@@ -2,7 +2,8 @@
 #
 # Digital Ocean Ubuntu 18.04 x64 Droplet
 # Running:
-# wget https://gist.githubusercontent.com/stroebs/54fc09734a3911e91eeeb43434f117df/raw/54fc09734a3911e91eeeb43434f117df/make-chr.sh
+# git clone https://gist.github.com/54fc09734a3911e91eeeb43434f117df.git
+# cd 54fc09734a3911e91eeeb43434f117df/
 # chmod +x make-chr.sh
 # ./make-chr.sh
 #

diff --git a/make-chr.sh b/make-chr.sh
@@ -1,11 +1,16 @@
 #!/bin/bash
 #
-# Digital Ocean Ubuntu 16.04.6 Droplet
+# Digital Ocean Ubuntu 18.04 x64 Droplet
 # Running:
-# wget https://gist.githubusercontent.com/stroebs/54fc09734a3911e91eeeb43434f117df/raw/1ede2fb162d404171122db0c84a9eeea468a92cd/make-chr.sh
+# wget https://gist.githubusercontent.com/stroebs/54fc09734a3911e91eeeb43434f117df/raw/54fc09734a3911e91eeeb43434f117df/make-chr.sh
 # chmod +x make-chr.sh
 # ./make-chr.sh
 #
+# Once the reboot is done, login with root/CHANGEME and change the password!
+# You might get a "Segmentation fault" on line 56 while the image is being written.
+# Most of the time this is absolutely fine. Reboot the droplet and attempt to login using Winbox.
+# If it didn't work, just trash the droplet and try it again.
+#
 wget http://download2.mikrotik.com/routeros/6.37/chr-6.37.img.zip -O chr.img.zip  && \
 gunzip -c chr.img.zip > chr.img  && \
 apt-get update && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -1,3 +1,11 @@
+#!/bin/bash
+#
+# Digital Ocean Ubuntu 16.04.6 Droplet
+# Running:
+# wget https://gist.githubusercontent.com/stroebs/54fc09734a3911e91eeeb43434f117df/raw/1ede2fb162d404171122db0c84a9eeea468a92cd/make-chr.sh
+# chmod +x make-chr.sh
+# ./make-chr.sh
+#
 wget http://download2.mikrotik.com/routeros/6.37/chr-6.37.img.zip -O chr.img.zip  && \
 gunzip -c chr.img.zip > chr.img  && \
 apt-get update && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -1,21 +1,25 @@
-wget http://download2.mikrotik.com/routeros/6.40.5/chr-6.40.5.img.zip -O chr.img.zip  && \
+wget http://download2.mikrotik.com/routeros/6.37/chr-6.37.img.zip -O chr.img.zip  && \
 gunzip -c chr.img.zip > chr.img  && \
 apt-get update && \
 apt install -y qemu-utils pv && \
 qemu-img convert chr.img -O qcow2 chr.qcow2 && \
-qemu-img resize chr.qcow2 `fdisk /dev/vda -l | head -n 1 | cut -d',' -f 2 | cut -d' ' -f 2` && \
+qemu-img resize chr.qcow2 1073741824 && \
 modprobe nbd && \
 qemu-nbd -c /dev/nbd0 chr.qcow2 && \
 echo "Give some time for qemu-nbd to be ready" && \
 sleep 2 && \
-partx -a /dev/nbd0 && \
+partprobe /dev/nbd0 && \
+sleep 5 && \
 mount /dev/nbd0p2 /mnt && \
 ADDRESS=`ip addr show eth0 | grep global | cut -d' ' -f 6 | head -n 1` && \
 GATEWAY=`ip route list | grep default | cut -d' ' -f 3` && \
+PASSWORD="CHANGEME" && \
 echo "/ip address add address=$ADDRESS interface=[/interface ethernet find where name=ether1]
 /ip route add gateway=$GATEWAY
 /ip service disable telnet
-/user set 0 name=root password=xxxxxx
+/user set 0 name=root password=$PASSWORD
+/ip dns set servers=1.1.1.1,1.0.0.1
+/system package update install
  " > /mnt/rw/autorun.scr && \
 umount /mnt && \
 echo "Magic constant is 65537 (second partition address). You can check it with fdisk before appliyng this" && \
@@ -35,6 +39,7 @@ echo "Warming up sleep" && \
 sleep 1 && \
 echo "Writing raw image, this will take time" && \
 zcat /mnt/chr-extended.gz | pv > /dev/vda && \
+echo "Don't forget your password: $PASSWORD" && \
 echo "Sleep 5 seconds (if lucky)" && \
 sleep 5 || true && \
 echo "sync disk" && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -1,7 +1,7 @@
 wget http://download2.mikrotik.com/routeros/6.40.5/chr-6.40.5.img.zip -O chr.img.zip  && \
 gunzip -c chr.img.zip > chr.img  && \
 apt-get update && \
-apt install -y qemu-utils pv partx && \
+apt install -y qemu-utils pv && \
 qemu-img convert chr.img -O qcow2 chr.qcow2 && \
 qemu-img resize chr.qcow2 `fdisk /dev/vda -l | head -n 1 | cut -d',' -f 2 | cut -d' ' -f 2` && \
 modprobe nbd && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -1,7 +1,7 @@
 wget http://download2.mikrotik.com/routeros/6.40.5/chr-6.40.5.img.zip -O chr.img.zip  && \
 gunzip -c chr.img.zip > chr.img  && \
 apt-get update && \
-apt install -y qemu-utils pv && \
+apt install -y qemu-utils pv partx && \
 qemu-img convert chr.img -O qcow2 chr.qcow2 && \
 qemu-img resize chr.qcow2 `fdisk /dev/vda -l | head -n 1 | cut -d',' -f 2 | cut -d' ' -f 2` && \
 modprobe nbd && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -8,6 +8,7 @@ modprobe nbd && \
 qemu-nbd -c /dev/nbd0 chr.qcow2 && \
 echo "Give some time for qemu-nbd to be ready" && \
 sleep 2 && \
+partx -a /dev/nbd0 && \
 mount /dev/nbd0p2 /mnt && \
 ADDRESS=`ip addr show eth0 | grep global | cut -d' ' -f 6 | head -n 1` && \
 GATEWAY=`ip route list | grep default | cut -d' ' -f 3` && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -1,4 +1,4 @@
-wget http://download2.mikrotik.com/routeros/6.40.4/chr-6.40.4.img.zip -O chr.img.zip  && \
+wget http://download2.mikrotik.com/routeros/6.40.5/chr-6.40.5.img.zip -O chr.img.zip  && \
 gunzip -c chr.img.zip > chr.img  && \
 apt-get update && \
 apt install -y qemu-utils pv && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -1,4 +1,4 @@
-wget http://download2.mikrotik.com/routeros/6.36.4/chr-6.40.4.img.zip -O chr.img.zip  && \
+wget http://download2.mikrotik.com/routeros/6.40.4/chr-6.40.4.img.zip -O chr.img.zip  && \
 gunzip -c chr.img.zip > chr.img  && \
 apt-get update && \
 apt install -y qemu-utils pv && \

diff --git a/make-chr.sh b/make-chr.sh
@@ -0,0 +1,42 @@
+wget http://download2.mikrotik.com/routeros/6.36.4/chr-6.40.4.img.zip -O chr.img.zip  && \
+gunzip -c chr.img.zip > chr.img  && \
+apt-get update && \
+apt install -y qemu-utils pv && \
+qemu-img convert chr.img -O qcow2 chr.qcow2 && \
+qemu-img resize chr.qcow2 `fdisk /dev/vda -l | head -n 1 | cut -d',' -f 2 | cut -d' ' -f 2` && \
+modprobe nbd && \
+qemu-nbd -c /dev/nbd0 chr.qcow2 && \
+echo "Give some time for qemu-nbd to be ready" && \
+sleep 2 && \
+mount /dev/nbd0p2 /mnt && \
+ADDRESS=`ip addr show eth0 | grep global | cut -d' ' -f 6 | head -n 1` && \
+GATEWAY=`ip route list | grep default | cut -d' ' -f 3` && \
+echo "/ip address add address=$ADDRESS interface=[/interface ethernet find where name=ether1]
+/ip route add gateway=$GATEWAY
+/ip service disable telnet
+/user set 0 name=root password=xxxxxx
+ " > /mnt/rw/autorun.scr && \
+umount /mnt && \
+echo "Magic constant is 65537 (second partition address). You can check it with fdisk before appliyng this" && \
+echo "This scary sequence removes seconds partition on nbd0 and creates new, but bigger one" && \
+echo -e 'd\n2\nn\np\n2\n65537\n\nw\n' | fdisk /dev/nbd0 && \
+e2fsck -f -y /dev/nbd0p2 || true && \
+resize2fs /dev/nbd0p2 && \
+sleep 1 && \
+echo "Compressing to gzip, this can take several minutes" && \
+mount -t tmpfs tmpfs /mnt && \
+pv /dev/nbd0 | gzip > /mnt/chr-extended.gz && \
+sleep 1 && \
+killall qemu-nbd && \
+sleep 1 && \
+echo u > /proc/sysrq-trigger && \
+echo "Warming up sleep" && \
+sleep 1 && \
+echo "Writing raw image, this will take time" && \
+zcat /mnt/chr-extended.gz | pv > /dev/vda && \
+echo "Sleep 5 seconds (if lucky)" && \
+sleep 5 || true && \
+echo "sync disk" && \
+echo s > /proc/sysrq-trigger && \
+echo "Ok, reboot" && \
+echo b > /proc/sysrq-trigger
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