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{ fetchurl, writeText, libguestfs-with-appliance, pkgsCross, qemu, runCommand
, writeShellApplication, sshPassword, sshPort, httpPort }:
let
updateName = "remarkable-ct-prototype-image-3.16.1.0-ferrari-public";
updateArchive = fetchurl {
url =
# TODO: this is not an official source. might be worth authenticating the updates
"https://storage.googleapis.com/remarkable-versions/${updateName}.swu";
hash = "";
};
xochitlConfig = writeText "xochitl.conf" ''
[General]
DeveloperPassword=${sshPassword}
wifion=false
WebInterfaceEnabled=true
IdleSuspendDelay=0
SuspendPowerOffDelay=0
'';
usbMacAddr = "52:54:00:12:34:56";
ifnameUdevRule = writeText "70-persistent-net.rules" ''
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", \
ATTR{address}=="${usbMacAddr}", \
ATTR{type}=="1", KERNEL=="eth*", NAME="usb0"
'';
xochitlService = writeText "xochitl.service" ''
[Unit]
Description=reMarkable main application
After=home.mount network.target
[Service]
ExecStart=/usr/bin/xochitl --system
Restart=always
# required to make xochitl run
# Environment=LD_PRELOAD=/usr/lib/libfakefbdev.so # TODO uncomment?
[Install]
WantedBy=multi-user.target
'';
fakefbdev = pkgsCross.remarkable2.gcc11Stdenv.mkDerivation {
name = "fakefbdev";
src = ./fakefbdev;
installFlags = [ "DESTDIR=${placeholder "out"}" ];
};
rootfsImage = runCommand "rm-rootfs.ext4" ''
cpio -i --file ${updateArchive}
gzip -dc ${updateName}.ext4.verity.gz > $out
'';
diskImage = runCommand "rm-disk.qcow2" {
nativeBuildInputs = [ qemu libguestfs-with-appliance ];
} ''
qemu-img create -f qcow2 $out 8G
guestfish --rw --blocksize=512 --add $out <<EOF
run
part-init /dev/sda mbr
part-add /dev/sda p 2048 43007
part-add /dev/sda p 43008 595967
part-add /dev/sda p 595968 1148927
part-add /dev/sda p 1148928 14942207
mkfs vfat /dev/sda1
upload ${rootfsImage} /dev/sda2
mkfs ext4 /dev/sda3
mkfs ext4 /dev/sda4
mount /dev/sda2 /
download /etc/fstab fstab
! sed -i 's/mmcblk2p/vda/' fstab
upload fstab /etc/fstab
upload ${ifnameUdevRule} /etc/udev/rules.d/70-persistent-net.rules
download /lib/systemd/system/dhcpcd.service dhcpcd.service
! sed -i 's/wlan/usb/' dhcpcd.service
upload dhcpcd.service /lib/systemd/system/dhcpcd.service
rm /lib/systemd/system/remarkable-fail.service
rm /lib/systemd/system/rm-sync.service
upload ${xochitlService} /lib/systemd/system/xochitl.service
upload ${fakefbdev}/lib/libfakefbdev.so /usr/lib/libfakefbdev.so
chmod 0755 /usr/lib/libfakefbdev.so
mount /dev/sda4 /home
cp-a /etc/skel /home/root
mkdir-p /home/root/.local/share/remarkable/xochitl
mkdir-p /home/root/.config/remarkable
upload ${xochitlConfig} /home/root/.config/remarkable/xochitl.conf
EOF
'';
kernel = pkgsCross.aarch64-linux.linux_5_4;
in writeShellApplication {
name = "reMder-server";
runtimeInputs = [ qemu ];
text = ''
qemu-img create -b ${diskImage} -F qcow2 -f qcow2 ./reMder.qcow2
qemu-system-aarch64 \
-enable-kvm \
-machine virt \
-cpu host \
-m 2048 \
-kernel ${kernel}/zImage \
-drive if=none,file=./reMder.qcow2,format=qcow2,id=hd \
-device virtio-blk-device,drive=hd \
-netdev user,hostfwd=tcp::${toString sshPort}-:22,hostfwd=tcp::${
toString httpPort
}-:80,id=net \
-device virtio-net-device,netdev=net,mac=${usbMacAddr} \
-append "console=ttyAMA0 rootfstype=ext4 root=/dev/vda2 rw rootwait init=/sbin/init" \
-serial stdio \
-monitor none \
-nographic
'';
}
|