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update to alpine v3.21, use dropbear as ssh server #25

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update to alpine v3.21, use dropbear as ssh server #25

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9 changes: 5 additions & 4 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -25,9 +25,9 @@ pkg install qemu-utils qemu-common qemu-system-x86_64-headless wget -y
mkdir alpine && cd alpine
```

5. Download Alpine Linux 3.20.2 (virt optimized) ISO:
5. Download Alpine Linux v3.21 (virt optimized) ISO:
```bash
wget http://dl-cdn.alpinelinux.org/alpine/v3.20/releases/x86_64/alpine-virt-3.20.2-x86_64.iso
wget https://dl-cdn.alpinelinux.org/alpine/v3.21/releases/x86_64/alpine-virt-3.21.0-x86_64.iso
```

6. Create disk (note it won't actually take 5GB of space, more like 500-600MB):
Expand All @@ -38,7 +38,7 @@ qemu-img create -f qcow2 alpine.img 5G
7. Boot it up:
Here we're using 1024MB of memory and 2 cpus
```bash
qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 -drive if=pflash,format=raw,read-only=on,file=$PREFIX/share/qemu/edk2-x86_64-code.fd -netdev user,id=n1,dns=8.8.8.8,hostfwd=tcp::2222-:22 -device virtio-net,netdev=n1 -cdrom alpine-virt-3.20.2-x86_64.iso -nographic alpine.img
qemu-system-x86_64 -machine q35 -m 1024 -smp cpus=2 -cpu qemu64 -drive if=pflash,format=raw,read-only=on,file=$PREFIX/share/qemu/edk2-x86_64-code.fd -netdev user,id=n1,dns=8.8.8.8,hostfwd=tcp::2222-:22 -device virtio-net,netdev=n1 -cdrom alpine-virt-3.21.0-x86_64.iso -nographic alpine.img
```
> you can get number of useable cpus using `nproc` and total memory using `free -m | grep -oP '\d+' | head -n 1`
8. Login with username ``root`` (no password)
Expand Down Expand Up @@ -68,10 +68,11 @@ wget https://raw.githubusercontent.com/cyberkernelofficial/docker-in-termux/main

11. Patch ``setup-disk`` to enable serial console output on boot:
```bash
sed -i -E 's/(local kernel_opts)=.*/\1="console=ttyS0"/' /sbin/setup-disk
sed -i -E 's/(local kernel_opts)=.*/\1="console=ttyS0"/' /usr/sbin/setup-disk && echo "Success" || echo "Failure: Exit code: $?"
```

12. Run setup to install to disk
> **NOTE:** Edit answerfile to adjust Keymap and Timzone if you want (Default: KEYMAPOPTS="us us" and TIMEZONEOPTS="-z UTC")
```bash
setup-alpine -f answerfile
```
Expand Down
10 changes: 7 additions & 3 deletions answerfile
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
KEYMAPOPTS="tr"
# Use US layout with US variant
KEYMAPOPTS="us us"

HOSTNAMEOPTS="-n alpine"
INTERFACESOPTS="auto lo
iface lo inet loopback
Expand All @@ -9,7 +11,9 @@ iface eth0 inet dhcp
"
TIMEZONEOPTS="-z UTC"
PROXYOPTS="none"
APKREPOSOPTS="http://dl-cdn.alpinelinux.org/alpine/v3.20/main http://dl-cdn.alpinelinux.org/alpine/v3.20/community"
SSHDOPTS="-c openssh"
APKREPOSOPTS="http://dl-cdn.alpinelinux.org/alpine/v3.21/main http://dl-cdn.alpinelinux.org/alpine/v3.21/community"

SSHDOPTS="-c dropbear"
NTPOPTS="-c busybox"

DISKOPTS="-v -m sys -s 0 /dev/sda"