mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-22 23:13:19 +00:00
* The -smb flag in QEMU/KVM is unreliable: it doesn't work without the
-no-kvm-irqchip flag, and on the Hydra machines only works on the rather old KVM 76. So as a workaround, don't use -smb, but use QEMU's "guestfwd" feature to forward 10.0.2.4:139 in the guest to a Unix domain socket on the host connected to Samba. * Use "cache=writeback" to improve performance a lot. * Use "werror=report" to make QEMU crash instead of hang if the host filesystem is full. svn path=/nixpkgs/trunk/; revision=22249
This commit is contained in:
Eelco Dolstra
parent
9bf1c85983
commit
1f8e6d4814
@ -7,15 +7,18 @@ rec {
|
||||
|
||||
inherit (linuxPackages_2_6_32) kernel;
|
||||
|
||||
kvm = pkgs.kvm76;
|
||||
kvm = pkgs.qemu_kvm;
|
||||
|
||||
|
||||
modulesClosure = makeModulesClosure {
|
||||
inherit kernel;
|
||||
rootModules = ["cifs" "virtio_net" "virtio_pci" "virtio_blk" "virtio_balloon" "nls_utf8" "ext2" "ext3" "unix"];
|
||||
rootModules = [ "cifs" "virtio_net" "virtio_pci" "virtio_blk" "virtio_balloon" "nls_utf8" "ext2" "ext3" "unix" "sd_mod" "ata_piix" ];
|
||||
};
|
||||
|
||||
|
||||
hd = "vda"; # either "sda" or "vda"
|
||||
|
||||
|
||||
initrdUtils = runCommand "initrd-utils"
|
||||
{ buildInputs = [ nukeReferences ];
|
||||
allowedReferences = [ "out" modulesClosure ]; # prevent accidents like glibc being included in the initrd
|
||||
@ -47,8 +50,8 @@ rec {
|
||||
# Copy some other tools.
|
||||
cp ${bash}/bin/bash $out/bin
|
||||
cp ${module_init_tools}/sbin/insmod $out/bin/insmod
|
||||
cp ${pkgs.nettools}/sbin/ifconfig $out/bin
|
||||
cp ${pkgs.sysvinit}/sbin/halt $out/bin
|
||||
cp ${nettools}/sbin/ifconfig $out/bin
|
||||
cp ${sysvinit}/sbin/halt $out/bin
|
||||
|
||||
# Run patchelf to make the programs refer to the copied libraries.
|
||||
for i in $out/bin/* $out/lib/*; do if ! test -L $i; then nuke-refs $i; fi; done
|
||||
@ -65,8 +68,8 @@ rec {
|
||||
mknod ${dev}/null c 1 3
|
||||
mknod ${dev}/zero c 1 5
|
||||
mknod ${dev}/tty c 5 0
|
||||
. /sys/class/block/vda/uevent
|
||||
mknod ${dev}/vda b $MAJOR $MINOR
|
||||
. /sys/class/block/${hd}/uevent
|
||||
mknod ${dev}/${hd} b $MAJOR $MINOR
|
||||
'';
|
||||
|
||||
|
||||
@ -123,7 +126,7 @@ rec {
|
||||
if test -z "$mountDisk"; then
|
||||
mount -t tmpfs none /fs
|
||||
else
|
||||
mount -t ext2 /dev/vda /fs
|
||||
mount -t ext2 /dev/${hd} /fs
|
||||
fi
|
||||
|
||||
mkdir -p /fs/hostfs
|
||||
@ -131,17 +134,9 @@ rec {
|
||||
mkdir -p /fs/dev
|
||||
mount -o bind /dev /fs/dev
|
||||
|
||||
n=.
|
||||
echo "mounting host filesystem..."
|
||||
while true; do
|
||||
if mount -t cifs //10.0.2.4/qemu /fs/hostfs -o guest,username=nobody; then
|
||||
break
|
||||
else
|
||||
n=".$n"
|
||||
test ''${#n} -le 10 || exit 1
|
||||
sleep 1
|
||||
echo "retrying..."
|
||||
fi
|
||||
for ((n = 0; n < 10; n++)); do
|
||||
echo "mounting host filesystem, attempt $n..."
|
||||
mount -t cifs //10.0.2.4/qemu /fs/hostfs -o guest,username=nobody && break
|
||||
done
|
||||
|
||||
mkdir -p /fs/nix/store
|
||||
@ -215,10 +210,10 @@ rec {
|
||||
|
||||
|
||||
qemuCommandLinux = ''
|
||||
qemu-system-x86_64 -no-kvm-irqchip \
|
||||
qemu-system-x86_64 \
|
||||
-nographic -no-reboot \
|
||||
-net nic,model=virtio -net user -smb / \
|
||||
-drive file=$diskImage,if=virtio,boot=on \
|
||||
-net nic,model=virtio -chardev socket,id=samba,path=$TMPDIR/samba -net user,guestfwd=tcp:10.0.2.4:139-chardev:samba \
|
||||
-drive file=$diskImage,if=virtio,boot=on,cache=writeback,werror=report \
|
||||
-kernel ${kernel}/bzImage \
|
||||
-initrd ${initrd}/initrd \
|
||||
-append "console=ttyS0 panic=1 command=${stage2Init} tmpDir=$TMPDIR out=$out mountDisk=$mountDisk" \
|
||||
@ -229,12 +224,28 @@ rec {
|
||||
vmRunCommand = qemuCommand: writeText "vm-run" ''
|
||||
export > saved-env
|
||||
|
||||
PATH=${coreutils}/bin:${kvm}/bin:${samba}/sbin
|
||||
PATH=${coreutils}/bin:${kvm}/bin
|
||||
|
||||
diskImage=''${diskImage:-/dev/null}
|
||||
|
||||
eval "$preVM"
|
||||
|
||||
cat > smb.conf <<EOF
|
||||
[global]
|
||||
private dir=$TMPDIR
|
||||
smb ports=0
|
||||
socket address=127.0.0.1
|
||||
pid directory=$TMPDIR
|
||||
lock directory=$TMPDIR
|
||||
log file=$TMPDIR/log.smbd
|
||||
smb passwd file=$TMPDIR/smbpasswd
|
||||
security = share
|
||||
[qemu]
|
||||
path=/
|
||||
read only=no
|
||||
guest ok=yes
|
||||
EOF
|
||||
|
||||
# Write the command to start the VM to a file so that the user can
|
||||
# debug inside the VM if the build fails (when Nix is called with
|
||||
# the -K option to preserve the temporary build directory).
|
||||
@ -242,6 +253,8 @@ rec {
|
||||
#! ${bash}/bin/sh
|
||||
diskImage=$diskImage
|
||||
TMPDIR=$TMPDIR
|
||||
${socat}/bin/socat unix-listen:$TMPDIR/samba exec:'${samba}/sbin/smbd -s $TMPDIR/smb.conf' &
|
||||
while [ ! -e $TMPDIR/samba ]; do sleep 0.1; done # ugly
|
||||
${qemuCommand}
|
||||
EOF
|
||||
|
||||
@ -271,8 +284,8 @@ rec {
|
||||
|
||||
createRootFS = ''
|
||||
mkdir /mnt
|
||||
${e2fsprogs}/sbin/mke2fs -F /dev/vda
|
||||
${utillinux}/bin/mount -t ext2 /dev/vda /mnt
|
||||
${e2fsprogs}/sbin/mke2fs -F /dev/${hd}
|
||||
${utillinux}/bin/mount -t ext2 /dev/${hd} /mnt
|
||||
|
||||
if test -e /mnt/.debug; then
|
||||
exec ${bash}/bin/sh
|
||||
@ -429,6 +442,7 @@ rec {
|
||||
# Make the Nix store available in /mnt, because that's where the RPMs live.
|
||||
mkdir -p /mnt/nix/store
|
||||
${utillinux}/bin/mount -o bind /nix/store /mnt/nix/store
|
||||
${utillinux}/bin/mount -o bind /tmp /mnt/tmp
|
||||
|
||||
echo "installing RPMs..."
|
||||
PATH=/usr/bin:/bin:/usr/sbin:/sbin $chroot /mnt \
|
||||
@ -440,6 +454,7 @@ rec {
|
||||
rm /mnt/.debug
|
||||
|
||||
${utillinux}/bin/umount /mnt/nix/store
|
||||
${utillinux}/bin/umount /mnt/tmp
|
||||
${utillinux}/bin/umount /mnt
|
||||
'';
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user