blob: b1457b80399b140472e3e4673b34858175f72275 [file] [log] [blame]
#!/bin/bash
# Copyright 2014 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
# This script requires expect, growisofs and qemu.
set -e
set -u
readonly VERSION="6.2"
readonly RELNO="${VERSION/./}"
readonly ARCH="${ARCH:-amd64}"
readonly MIRROR="${MIRROR:-ftp.usa.openbsd.org}"
if [[ "${ARCH}" != "amd64" && "${ARCH}" != "i386" ]]; then
echo "ARCH must be amd64 or i386"
exit 1
fi
readonly ISO="install${RELNO}-${ARCH}.iso"
readonly ISO_PATCHED="install${RELNO}-${ARCH}-patched.iso"
if [[ ! -f "${ISO}" ]]; then
curl -o "${ISO}" "http://${MIRROR}/pub/OpenBSD/${VERSION}/${ARCH}/install${RELNO}.iso"
fi
function cleanup() {
rm -f "${ISO_PATCHED}"
rm -f auto_install.conf
rm -f boot.conf
rm -f disk.raw
rm -f disklabel.template
rm -f etc/rc.local
rm -f install.site
rm -f random.seed
rm -f site${RELNO}.tgz
rmdir etc
}
trap cleanup EXIT INT
# XXX: Download and save bash, curl, and their dependencies too?
# Currently we download them from the network during the install process.
# Create custom siteXX.tgz set.
mkdir -p etc
cat >install.site <<EOF
#!/bin/sh
env PKG_PATH=http://${MIRROR}/pub/OpenBSD/${VERSION}/packages/${ARCH} \
pkg_add -iv bash curl git
echo 'set tty com0' > boot.conf
EOF
cat >etc/rc.local <<EOF
(
set -x
echo "Remounting root with softdep,noatime..."
mount -o softdep,noatime,update /
echo "starting buildlet script"
netstat -rn
cat /etc/resolv.conf
dig metadata.google.internal
(
set -e
export PATH="\$PATH:/usr/local/bin"
/usr/local/bin/curl -o /buildlet \$(/usr/local/bin/curl --fail -H "Metadata-Flavor: Google" http://metadata.google.internal/computeMetadata/v1/instance/attributes/buildlet-binary-url)
chmod +x /buildlet
exec /buildlet
)
echo "giving up"
(
sleep 10
halt -p
)&
)
EOF
chmod +x install.site
tar -zcvf site${RELNO}.tgz install.site etc/rc.local
# Autoinstall script.
cat >auto_install.conf <<EOF
System hostname = buildlet
Which network interface = vio0
IPv4 address for vio0 = dhcp
IPv6 address for vio0 = none
Password for root account = root
Do you expect to run the X Window System = no
Change the default console to com0 = yes
Which speed should com0 use = 115200
Setup a user = gopher
Full name for user gopher = Gopher Gopherson
Password for user gopher = gopher
Allow root ssh login = no
What timezone = US/Pacific
Which disk = sd0
Use (W)hole disk or (E)dit the MBR = whole
Use (A)uto layout, (E)dit auto layout, or create (C)ustom layout = auto
URL to autopartitioning template for disklabel = file://disklabel.template
Set name(s) = +* -x* -game* -man* done
Directory does not contain SHA256.sig. Continue without verification = yes
EOF
# Disklabel template.
cat >disklabel.template <<EOF
/ 5G-* 95%
swap 1G
EOF
# Hack install CD a bit.
echo 'set tty com0' > boot.conf
dd if=/dev/urandom of=random.seed bs=4096 count=1
cp "${ISO}" "${ISO_PATCHED}"
growisofs -M "${ISO_PATCHED}" -l -R -graft-points \
/${VERSION}/${ARCH}/site${RELNO}.tgz=site${RELNO}.tgz \
/auto_install.conf=auto_install.conf \
/disklabel.template=disklabel.template \
/etc/boot.conf=boot.conf \
/etc/random.seed=random.seed
# Initialize disk image.
rm -f disk.raw
qemu-img create -f raw disk.raw 10G
# Run the installer to create the disk image.
expect <<EOF
set timeout 1800
spawn qemu-system-x86_64 -nographic -smp 2 \
-drive if=virtio,file=disk.raw,format=raw -cdrom "${ISO_PATCHED}" \
-net nic,model=virtio -net user -boot once=d
expect timeout { exit 1 } "boot>"
send "\n"
# Need to wait for the kernel to boot.
expect timeout { exit 1 } "\(I\)nstall, \(U\)pgrade, \(A\)utoinstall or \(S\)hell\?"
send "s\n"
expect timeout { exit 1 } "# "
send "mount /dev/cd0c /mnt\n"
send "cp /mnt/auto_install.conf /mnt/disklabel.template /\n"
send "umount /mnt\n"
send "exit\n"
expect timeout { exit 1 } "CONGRATULATIONS!"
# There is some form of race condition with OpenBSD 6.2 MP
# and qemu, which can result in init(1) failing to run /bin/sh
# the first time around...
expect {
timeout { exit 1 }
"Enter pathname of shell or RETURN for sh:" {
send "\nexit\n"
expect timeout { exit 1 } eof
}
eof
}
EOF
# Create Compute Engine disk image.
echo "Archiving disk.raw... (this may take a while)"
tar -Szcf "openbsd-${ARCH}-gce.tar.gz" disk.raw
echo "Done. GCE image is openbsd-${ARCH}-gce.tar.gz."