mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 01:47:34 +00:00
Kernel: Implement OffsetDiskDevice to prepare for partition support
This implements a passthrough disk driver that translates the read/write block addresses by a fixed offset. This could form the basis of MBR partition support if we were to parse the MBR table at boot and create that OffsetDiskDevice dynamically, rather than seeking to a fixed offset. This also introduces a dependency in the form of grub. You'll need to have 32-bit grub binaries installed to build the project now. As a bonus, divorcing Serenity from qemu's kernel loading means we can now *technically* boot on real hardware. It just... doesn't get very far yet. If you write the `_disk_image` file to an IDE hard drive and boot it in a machine that supports all the basic PC hardware, it *will* start loading the kernel.
This commit is contained in:
Conrad Pankoff
Andreas Kling
parent
5e1c7cb32c
commit
6f43f81fb4
8 changed files with 220 additions and 66 deletions
170
Kernel/sync.sh
170
Kernel/sync.sh
|
|
@ -1,33 +1,68 @@
|
|||
#!/bin/bash
|
||||
|
||||
if [ "$1" = "-f" ]; then
|
||||
rm -vf _fs_contents
|
||||
fi
|
||||
set -e
|
||||
|
||||
die() {
|
||||
echo "die: $@"
|
||||
exit 1
|
||||
}
|
||||
|
||||
if [ $(id -u) != 0 ]; then
|
||||
echo "This needs to be run as root"
|
||||
exit 1
|
||||
die "this script needs to run as root"
|
||||
fi
|
||||
|
||||
rm -vf _fs_contents.lock
|
||||
|
||||
# If target filesystem image doesn't exist, create it.
|
||||
if [ ! -f _fs_contents ]; then
|
||||
dd if=/dev/zero of=_fs_contents bs=1M count=512
|
||||
echo "setting up disk image..."
|
||||
if [ ! -f _disk_image ]; then
|
||||
echo "not found; creating a new one"
|
||||
dd if=/dev/zero of=_disk_image bs=1M count=100 || die "couldn't create disk image"
|
||||
parted -s _disk_image mklabel msdos mkpart primary ext2 32k 100% -a minimal set 1 boot on || die "couldn't partition disk image"
|
||||
chown 1000:1000 _disk_image || die "couldn't adjust permissions on disk image"
|
||||
else
|
||||
echo "already exists, nothing to do"
|
||||
fi
|
||||
echo "done"
|
||||
|
||||
mke2fs -F -I 128 _fs_contents
|
||||
echo "checking for and removing old loopback devices..."
|
||||
losetup -j _disk_image | cut -d : -f 1 | while read old_dev; do
|
||||
echo "removing $dev"
|
||||
losetup -d ${old_dev}
|
||||
done
|
||||
echo "done"
|
||||
|
||||
chown 1000:1000 _fs_contents
|
||||
mkdir -vp mnt
|
||||
mount -o loop _fs_contents mnt/
|
||||
mkdir -vp mnt/bin
|
||||
mkdir -vp mnt/etc
|
||||
mkdir -vp mnt/proc
|
||||
mkdir -vp mnt/tmp
|
||||
echo -n "creating loopback device... "
|
||||
dev=$(losetup --find --partscan --show _disk_image)
|
||||
if [ -z $dev ]; then
|
||||
die "couldn't mount loopback device"
|
||||
fi
|
||||
echo "loopback device is at ${dev}"
|
||||
|
||||
echo -n "destroying old filesystem... "
|
||||
dd if=/dev/zero of=${dev}p1 bs=1M count=1 status=none
|
||||
echo "done"
|
||||
|
||||
echo -n "creating new filesystem... "
|
||||
mke2fs -q -I 128 ${dev}p1 || die "couldn't create filesystem"
|
||||
echo "done"
|
||||
|
||||
echo -n "mounting loopback device... "
|
||||
mkdir -p mnt
|
||||
mount ${dev}p1 mnt/ || die "couldn't mount loopback device"
|
||||
echo "done"
|
||||
|
||||
echo -n "creating initial filesystem structure... "
|
||||
mkdir -p mnt/{boot,bin,etc,proc,tmp}
|
||||
chmod 1777 mnt/tmp
|
||||
mkdir -vp mnt/dev
|
||||
mkdir -vp mnt/dev/pts
|
||||
echo "done"
|
||||
|
||||
echo "installing grub..."
|
||||
mkdir -p mnt/boot/grub
|
||||
cp grub.cfg mnt/boot/grub/grub.cfg
|
||||
grub-install --boot-directory=mnt/boot --target=i386-pc --modules="ext2 part_msdos" ${dev}
|
||||
echo "done"
|
||||
|
||||
echo -n "setting up device nodes... "
|
||||
mkdir -p mnt/dev
|
||||
mkdir -p mnt/dev/pts
|
||||
mknod -m 666 mnt/dev/bxvga b 82 413
|
||||
mknod mnt/dev/tty0 c 4 0
|
||||
mknod mnt/dev/tty1 c 4 1
|
||||
|
|
@ -44,50 +79,73 @@ mknod -m 666 mnt/dev/ptmx c 5 2
|
|||
ln -s /proc/self/fd/0 mnt/dev/stdin
|
||||
ln -s /proc/self/fd/1 mnt/dev/stdout
|
||||
ln -s /proc/self/fd/2 mnt/dev/stderr
|
||||
cp -vR ../Base/* mnt/
|
||||
cp -vR ../Root/* mnt/
|
||||
mkdir -vp mnt/home/anon
|
||||
mkdir -vp mnt/home/nona
|
||||
echo "done"
|
||||
|
||||
echo -n "installing base system... "
|
||||
cp -R ../Base/* mnt/
|
||||
cp -R ../Root/* mnt/
|
||||
cp kernel mnt/boot
|
||||
cp kernel.map mnt/
|
||||
echo "done"
|
||||
|
||||
echo -n "installing users... "
|
||||
mkdir -p mnt/home/anon
|
||||
mkdir -p mnt/home/nona
|
||||
cp ../ReadMe.md mnt/home/anon/
|
||||
chown -vR 100:100 mnt/home/anon
|
||||
chown -vR 200:200 mnt/home/nona
|
||||
find ../Userland/ -type f -executable -exec cp -v {} mnt/bin/ \;
|
||||
chown -R 100:100 mnt/home/anon
|
||||
chown -R 200:200 mnt/home/nona
|
||||
echo "done"
|
||||
|
||||
echo -n "installing userland... "
|
||||
find ../Userland/ -type f -executable -exec cp {} mnt/bin/ \;
|
||||
chmod 4755 mnt/bin/su
|
||||
cp -v ../Applications/Terminal/Terminal mnt/bin/Terminal
|
||||
cp -v ../Applications/FontEditor/FontEditor mnt/bin/FontEditor
|
||||
cp -v ../Applications/Launcher/Launcher mnt/bin/Launcher
|
||||
cp -v ../Applications/FileManager/FileManager mnt/bin/FileManager
|
||||
cp -v ../Applications/ProcessManager/ProcessManager mnt/bin/ProcessManager
|
||||
cp -v ../Applications/About/About mnt/bin/About
|
||||
cp -v ../Applications/TextEditor/TextEditor mnt/bin/TextEditor
|
||||
cp -v ../Applications/IRCClient/IRCClient mnt/bin/IRCClient
|
||||
ln -s IRCClient mnt/bin/irc
|
||||
ln -s FileManager mnt/bin/fm
|
||||
cp -v ../Servers/SystemServer/SystemServer mnt/bin/SystemServer
|
||||
cp -v ../Servers/LookupServer/LookupServer mnt/bin/LookupServer
|
||||
cp -v ../Servers/WindowServer/WindowServer mnt/bin/WindowServer
|
||||
cp -v ../Applications/Taskbar/Taskbar mnt/bin/Taskbar
|
||||
ln -s Taskbar mnt/bin/tb
|
||||
cp -v ../Applications/Downloader/Downloader mnt/bin/Downloader
|
||||
echo "done"
|
||||
|
||||
echo -n "installing applications... "
|
||||
cp ../Applications/About/About mnt/bin/About
|
||||
cp ../Applications/Downloader/Downloader mnt/bin/Downloader
|
||||
cp ../Applications/FileManager/FileManager mnt/bin/FileManager
|
||||
cp ../Applications/FontEditor/FontEditor mnt/bin/FontEditor
|
||||
cp ../Applications/IRCClient/IRCClient mnt/bin/IRCClient
|
||||
cp ../Applications/Launcher/Launcher mnt/bin/Launcher
|
||||
cp ../Applications/ProcessManager/ProcessManager mnt/bin/ProcessManager
|
||||
cp ../Applications/Taskbar/Taskbar mnt/bin/Taskbar
|
||||
cp ../Applications/Terminal/Terminal mnt/bin/Terminal
|
||||
cp ../Applications/TextEditor/TextEditor mnt/bin/TextEditor
|
||||
cp ../Demos/HelloWorld/HelloWorld mnt/bin/HelloWorld
|
||||
cp ../Demos/RetroFetch/RetroFetch mnt/bin/RetroFetch
|
||||
cp ../Demos/WidgetGallery/WidgetGallery mnt/bin/WidgetGallery
|
||||
cp ../DevTools/VisualBuilder/VisualBuilder mnt/bin/VisualBuilder
|
||||
cp ../Games/Minesweeper/Minesweeper mnt/bin/Minesweeper
|
||||
cp ../Games/Snake/Snake mnt/bin/Snake
|
||||
cp ../Servers/LookupServer/LookupServer mnt/bin/LookupServer
|
||||
cp ../Servers/SystemServer/SystemServer mnt/bin/SystemServer
|
||||
cp ../Servers/WindowServer/WindowServer mnt/bin/WindowServer
|
||||
cp ../Shell/Shell mnt/bin/Shell
|
||||
echo "done"
|
||||
|
||||
echo -n "installing shortcuts... "
|
||||
ln -s Downloader mnt/bin/dl
|
||||
cp -v ../DevTools/VisualBuilder/VisualBuilder mnt/bin/VisualBuilder
|
||||
ln -s VisualBuilder mnt/bin/vb
|
||||
cp -v ../Games/Minesweeper/Minesweeper mnt/bin/Minesweeper
|
||||
ln -s Minesweeper mnt/bin/ms
|
||||
cp -v ../Games/Snake/Snake mnt/bin/Snake
|
||||
ln -s Snake mnt/bin/sn
|
||||
cp -v ../Shell/Shell mnt/bin/Shell
|
||||
ln -s Shell mnt/bin/sh
|
||||
cp -v kernel.map mnt/
|
||||
cp -v ../Demos/HelloWorld/HelloWorld mnt/bin/HelloWorld
|
||||
ln -s FileManager mnt/bin/fm
|
||||
ln -s HelloWorld mnt/bin/hw
|
||||
cp -v ../Demos/RetroFetch/RetroFetch mnt/bin/RetroFetch
|
||||
cp -v ../Demos/WidgetGallery/WidgetGallery mnt/bin/WidgetGallery
|
||||
ln -s IRCClient mnt/bin/irc
|
||||
ln -s Minesweeper mnt/bin/ms
|
||||
ln -s Shell mnt/bin/sh
|
||||
ln -s Snake mnt/bin/sn
|
||||
ln -s Taskbar mnt/bin/tb
|
||||
ln -s VisualBuilder mnt/bin/vb
|
||||
ln -s WidgetGallery mnt/bin/wg
|
||||
echo "done"
|
||||
|
||||
# Run local sync script, if it exists
|
||||
if [ -f sync-local.sh ]; then
|
||||
sh sync-local.sh
|
||||
fi
|
||||
|
||||
umount mnt || ( sleep 0.5 && sync && umount mnt )
|
||||
echo -n "unmounting filesystem... "
|
||||
umount mnt || ( sleep 1 && sync && umount mnt )
|
||||
echo "done"
|
||||
|
||||
echo -n "removing loopback device... "
|
||||
losetup -d ${dev}
|
||||
echo "done"
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue