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Build: Remove grub from default build process
This removes grub and all the loopback device business from the default build process. Running grub takes about a second, and it turns out it's inconsistently packaged in different distributions, which has led to at least one confusing issue so far (grub-install vs grub2-install). Removing it from the basic path will make it easier for people to try Serenity out. There are now two scripts that can be used to build a disk image: 1. `build-image-grub.sh` - this will build an image suitable for writing to the IDE hard drive of a physical machine, complete with a partition table and bootloader. This can be run in qemu with the `qgrub` target for the `run` script. 2. `build-image-qemu.sh` - this is a simpler script which creates a bare filesystem image rather than a full MBR disk. Both of these call out to `build-root-filesystem.sh` to do most of the work setting up... the root filesystem. For completeness' sake, I've retained the `sync.sh` script as a simple forwarding to `build-image-qemu.sh`. This relies on the functionality from #194 and #195. #195 allows us to use `/dev/hda` as the root device when nothing else is specified, and #194 works around a strange feature of qemu that appends a space to the kernel command line.
This commit is contained in:
Conrad Pankoff
Andreas Kling
parent
0aa1f1c2d6
commit
e1c982e4db
5 changed files with 239 additions and 161 deletions
162
Kernel/sync.sh
162
Kernel/sync.sh
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@ -1,163 +1,3 @@
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#!/bin/bash
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set -e
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die() {
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echo "die: $@"
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exit 1
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}
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if [ $(id -u) != 0 ]; then
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die "this script needs to run as root"
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fi
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echo "setting up disk image..."
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if [ ! -f _disk_image ]; then
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echo "not found; creating a new one"
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dd if=/dev/zero of=_disk_image bs=1M count=${DISK_SIZE:-500} || die "couldn't create disk image"
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parted -s _disk_image mklabel msdos mkpart primary ext2 32k 100% -a minimal set 1 boot on || die "couldn't partition disk image"
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chown 1000:1000 _disk_image || die "couldn't adjust permissions on disk image"
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else
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echo "already exists, nothing to do"
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fi
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echo "done"
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echo "checking for and removing old loopback devices..."
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losetup -j _disk_image | cut -d : -f 1 | while read old_dev; do
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echo "removing $dev"
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losetup -d ${old_dev}
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done
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echo "done"
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echo -n "creating loopback device... "
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dev=$(losetup --find --partscan --show _disk_image)
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if [ -z $dev ]; then
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die "couldn't mount loopback device"
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fi
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echo "loopback device is at ${dev}"
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echo -n "destroying old filesystem... "
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dd if=/dev/zero of=${dev}p1 bs=1M count=1 status=none
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echo "done"
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echo -n "creating new filesystem... "
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mke2fs -q -I 128 ${dev}p1 || die "couldn't create filesystem"
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echo "done"
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echo -n "mounting loopback device... "
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mkdir -p mnt
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mount ${dev}p1 mnt/ || die "couldn't mount loopback device"
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echo "done"
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echo -n "creating initial filesystem structure... "
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mkdir -p mnt/{boot,bin,etc,proc,tmp}
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chmod 1777 mnt/tmp
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echo "done"
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grub=$(which grub-install 2>/dev/null) || true
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if [[ -z "$grub" ]]; then
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grub=$(which grub2-install 2>/dev/null) || true
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fi
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if [ -z "$grub" ]; then
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echo "can't find a grub-install or grub2-install binary, oh no"
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exit 1
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fi
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echo "installing grub using $grub..."
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$grub --boot-directory=mnt/boot --target=i386-pc --modules="ext2 part_msdos" ${dev}
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if [ -d mnt/boot/grub2 ]; then
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cp grub.cfg mnt/boot/grub2/grub.cfg
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else
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cp grub.cfg mnt/boot/grub/grub.cfg
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fi
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echo -n "setting up device nodes... "
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mkdir -p mnt/dev
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mkdir -p mnt/dev/pts
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mknod -m 666 mnt/dev/bxvga b 82 413
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mknod mnt/dev/tty0 c 4 0
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mknod mnt/dev/tty1 c 4 1
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mknod mnt/dev/tty2 c 4 2
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mknod mnt/dev/tty3 c 4 3
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mknod mnt/dev/random c 1 8
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mknod mnt/dev/null c 1 3
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mknod mnt/dev/zero c 1 5
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mknod mnt/dev/full c 1 7
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mknod -m 666 mnt/dev/debuglog c 1 18
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mknod mnt/dev/keyboard c 85 1
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mknod mnt/dev/psaux c 10 1
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mknod -m 666 mnt/dev/ptmx c 5 2
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ln -s /proc/self/fd/0 mnt/dev/stdin
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ln -s /proc/self/fd/1 mnt/dev/stdout
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ln -s /proc/self/fd/2 mnt/dev/stderr
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echo "done"
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echo -n "installing base system... "
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cp -R ../Base/* mnt/
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cp -R ../Root/* mnt/
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cp kernel mnt/boot
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cp kernel.map mnt/
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echo "done"
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echo -n "installing users... "
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mkdir -p mnt/home/anon
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mkdir -p mnt/home/nona
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cp ../ReadMe.md mnt/home/anon/
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chown -R 100:100 mnt/home/anon
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chown -R 200:200 mnt/home/nona
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echo "done"
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echo -n "installing userland... "
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find ../Userland/ -type f -executable -exec cp {} mnt/bin/ \;
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chmod 4755 mnt/bin/su
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echo "done"
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echo -n "installing applications... "
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cp ../Applications/About/About mnt/bin/About
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cp ../Applications/Downloader/Downloader mnt/bin/Downloader
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cp ../Applications/FileManager/FileManager mnt/bin/FileManager
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cp ../Applications/FontEditor/FontEditor mnt/bin/FontEditor
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cp ../Applications/IRCClient/IRCClient mnt/bin/IRCClient
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cp ../Applications/Launcher/Launcher mnt/bin/Launcher
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cp ../Applications/ProcessManager/ProcessManager mnt/bin/ProcessManager
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cp ../Applications/Taskbar/Taskbar mnt/bin/Taskbar
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cp ../Applications/Terminal/Terminal mnt/bin/Terminal
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cp ../Applications/TextEditor/TextEditor mnt/bin/TextEditor
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cp ../Demos/HelloWorld/HelloWorld mnt/bin/HelloWorld
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cp ../Demos/RetroFetch/RetroFetch mnt/bin/RetroFetch
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cp ../Demos/WidgetGallery/WidgetGallery mnt/bin/WidgetGallery
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cp ../DevTools/VisualBuilder/VisualBuilder mnt/bin/VisualBuilder
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cp ../Games/Minesweeper/Minesweeper mnt/bin/Minesweeper
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cp ../Games/Snake/Snake mnt/bin/Snake
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cp ../Servers/LookupServer/LookupServer mnt/bin/LookupServer
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cp ../Servers/SystemServer/SystemServer mnt/bin/SystemServer
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cp ../Servers/WindowServer/WindowServer mnt/bin/WindowServer
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cp ../Shell/Shell mnt/bin/Shell
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echo "done"
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echo -n "installing shortcuts... "
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ln -s Downloader mnt/bin/dl
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ln -s FileManager mnt/bin/fm
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ln -s HelloWorld mnt/bin/hw
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ln -s IRCClient mnt/bin/irc
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ln -s Minesweeper mnt/bin/ms
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ln -s Shell mnt/bin/sh
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ln -s Snake mnt/bin/sn
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ln -s Taskbar mnt/bin/tb
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ln -s VisualBuilder mnt/bin/vb
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ln -s WidgetGallery mnt/bin/wg
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echo "done"
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# Run local sync script, if it exists
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if [ -f sync-local.sh ]; then
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sh sync-local.sh
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fi
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echo -n "unmounting filesystem... "
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umount mnt || ( sleep 1 && sync && umount mnt )
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echo "done"
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echo -n "removing loopback device... "
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losetup -d ${dev}
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echo "done"
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./build-image-qemu.sh
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