Добавить alt-e2k-chroot-setup.sh

alt-e2k-chroot-setup.sh

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+#!/bin/bash
+
+IMAGE_ARCH="e2kv6" # possible values are e2k, e2kv4, e2kv5, e2kv6
+IMAGE_VERSION="20240705"
+IMAGE_PATH="/ALTLinux/images/Sisyphus/docker/docker-$IMAGE_VERSION-$IMAGE_ARCH.tar.xz"
+MIRRORS=("http://elbrus.ivk.ru/pub" "http://setwd.ws/altlinux")
+
+QEMU_BUILD_FLAGS="--disable-werror --disable-pie"
+QEMU_BRANCH="e2k-v8.1.3"
+
+CHROOT_DIR="chroot-$IMAGE_ARCH"
+
+BINFMT_REGISTER_FLAGS=""
+
+# this is taken from qemu's binfmt set up script because I don't want to pollute
+# binfmt_misc with unrelated stuff
+e2k_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xaf\x00'
+e2k_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+e2k_old_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x31\x00'
+e2k_old_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'
+qemu_target_list="e2k e2k_old"
+
+if ! command -v git > /dev/null; then
+	echo "To build qemu-e2k, we need to clone git repository. Install git."
+	exit 1
+fi
+
+if ! command -v xz > /dev/null; then
+	echo "To unpack ALTLinux Docker image, we need xz. Install it."
+	exit 1
+fi
+
+if ! command -v wget > /dev/null; then
+	echo "To download ALTLinux Docker image, we need wget. Install it."
+	exit 1
+fi
+
+if [ $(uname -m) == "e2k" ]; then
+	echo "This script is for emulating Elbrus and you're already running on this architecture"
+	exit 1
+fi
+
+echo "WARNING: this script just set ups basic chroot to play with."
+echo "Do not use this in production!\n"
+echo "During installation, you will be asked for root access to properly"
+echo "unpack image and install binfmt_misc rule\n"
+read -p "Did you read and understood the message above? [Yn] " yn
+
+case $yn in
+	[yY|""] ) echo "Continuing..."; break;;
+	[nN] ) echo "Exiting"; exit 0;;
+	[*] ) echo "Unrecognized answer"; exit 1;;
+esac
+
+set -x
+
+git clone https://git.mentality.rip/OpenE2K/qemu-e2k -b $QEMU_BRANCH --depth=1 || exit 2
+pushd qemu-e2k
+./configure --target-list=e2k-linux-user --static $QEMU_BUILD_FLAGS
+make -j$(nproc)
+popd
+
+for i in ${MIRRORS[@]}; do
+	echo -n "Probing mirror $i..."
+	if wget -q -O/dev/null $i; then
+		SELECTED_MIRROR=$i
+
+		echo "OK"
+		break;
+	else
+		echo "BAD"
+	fi
+done
+
+if [ -z $SELECTED_MIRROR ]; then
+	echo "Can't find working mirror, exiting..."
+	exit 1
+fi
+
+qemu_register_interpreter() {
+	echo "Setting $qemu as binfmt interpreter for $cpu"
+	qemu_generate_register | sudo tee /proc/sys/fs/binfmt_misc/register
+}
+
+qemu_generate_register() {
+	flags="${BINFMT_REGISTER_FLAGS}"
+
+	echo ":qemu-$cpu:M::$magic:$mask:$qemu:$flags"
+}
+
+wget -Odocker.txz $SELECTED_MIRROR$IMAGE_PATH
+mkdir -p $CHROOT_DIR || exit 2
+pushd $CHROOT_DIR
+sudo tar -xJf ../docker.txz || exit 2
+sudo cp ../qemu-e2k/build/qemu-e2k usr/bin
+
+# Change default mirror in case if ivk is unreachable (it's kinda stupid to block non-Russian IP addresses, isn't it?)
+if [ $SELECTED_MIRROR != "http://elbrus.ivk.ru/pub" ]; then
+	sed "s|http://elbrus.ivk.ru/pub|$SELECTED_MIRROR|g" etc/apt/sources.list.d/ivk.list | sudo tee etc/apt/sources.list.d/mirror.list
+
+	sudo mv etc/apt/sources.list.d/ivk.list etc/apt/sources.list.d/ivk.list.disabled
+fi
+
+sudo cp /etc/resolv.conf etc/resolv.conf
+
+for cpu in ${qemu_target_list} ; do
+	qemu="/usr/bin/qemu-e2k"
+	magic=$(eval echo \$${cpu}_magic)
+	mask=$(eval echo \$${cpu}_mask)
+	qemu_register_interpreter
+done
+popd
+
+set +x
+
+echo "All done."
+echo "Keep in mind, it's up to you to set up binfmt_misc so it doesn't get lost between reboots"
+echo "Now you can do 'sudo chroot $CHROOT_DIR /bin/bash' and have some fun!"