mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-23 14:11:36 +00:00
48a282b913
(cherry picked from commit 78bb17dd22e4da4e3810fbc78185d73bb25ea73e) Signed-off-by: Domen Kožar <domen@dev.si>
90 lines
2.9 KiB
Plaintext
90 lines
2.9 KiB
Plaintext
Let all the files in the system tarball sit in a directory served by NFS (the
|
|
NFS root) like this in exportfs:
|
|
/home/pcroot 192.168.1.0/24(rw,no_root_squash,no_all_squash)
|
|
|
|
Run "exportfs -a" after editing /etc/exportfs, for the nfs server to be aware
|
|
of the changes.
|
|
|
|
Use a tftp server serving the root of boot/ (from the system tarball).
|
|
|
|
In order to have PXE boot, use the boot/dhcpd.conf-example file for your dhcpd
|
|
server, as it will point your PXE clients to pxelinux.0 from the tftp server.
|
|
Adapt the configuration to your network.
|
|
|
|
Adapt the pxelinux configuration (boot/pxelinux.cfg/default) to set the path to
|
|
your nfrroot. If you use ip=dhcp in the kernel, the nfs server ip will be taken
|
|
from dhcp and so you don't have to specify it.
|
|
|
|
The linux in bzImage includes network drivers for some usual cards.
|
|
|
|
|
|
QEMU Testing
|
|
---------------
|
|
|
|
You can test qemu pxe boot without having a DHCP server adapted, but having
|
|
nfsroot, like this:
|
|
qemu-system-x86_64 -tftp /home/pcroot/boot -net nic -net user,bootfile=pxelinux.0 -boot n
|
|
|
|
I don't know how to use NFS through the qemu '-net user' though.
|
|
|
|
|
|
QEMU Testing with NFS root and bridged network
|
|
-------------------------------------------------
|
|
|
|
This allows testing with qemu as any other host in your LAN.
|
|
|
|
Testing with the real dhcpd server requires setting up a bridge and having a
|
|
tap device.
|
|
tunctl -t tap0
|
|
brctl addbr br0
|
|
brctl addif br0 eth0
|
|
brctl addif tap0 eth0
|
|
ifconfig eth0 0.0.0.0 up
|
|
ifconfig tap0 0.0.0.0 up
|
|
ifconfig br0 up # With your ip configuration
|
|
|
|
Then you can run qemu:
|
|
qemu-system-x86_64 -boot n -net tap,ifname=tap0,script=no -net nic,model=e1000
|
|
|
|
|
|
Using the system-tarball-pc in a chroot
|
|
--------------------------------------------------
|
|
|
|
Installation:
|
|
mkdir nixos-chroot && cd nixos-chroot
|
|
tar xf your-system-tarball.tar.xz
|
|
mkdir sys dev proc tmp root var run
|
|
mount --bind /sys sys
|
|
mount --bind /dev dev
|
|
mount --bind /proc proc
|
|
|
|
Activate the system: look for a directory in nix/store similar to:
|
|
"/nix/store/y0d1lcj9fppli0hl3x0m0ba5g1ndjv2j-nixos-feb97bx-53f008"
|
|
Having found it, activate that nixos system *twice*:
|
|
chroot . /nix/store/SOMETHING-nixos-SOMETHING/activate
|
|
chroot . /nix/store/SOMETHING-nixos-SOMETHING/activate
|
|
|
|
This runs a 'hostname' command. Restore your old hostname with:
|
|
hostname OLDHOSTNAME
|
|
|
|
Copy your system resolv.conf to the /etc/resolv.conf inside the chroot:
|
|
cp /etc/resolv.conf etc
|
|
|
|
Then you can get an interactive shell in the nixos chroot. '*' means
|
|
to run inside the chroot interactive shell
|
|
chroot . /bin/sh
|
|
* source /etc/profile
|
|
|
|
Populate the nix database: that should be done in the init script if you
|
|
had booted this nixos. Run:
|
|
* `grep local-cmds run/current-system/init`
|
|
|
|
Then you can proceed normally subscribing to a nixos channel:
|
|
nix-channel --add https://nixos.org/channels/nixos-unstable
|
|
nix-channel --update
|
|
|
|
Testing:
|
|
nix-env -i hello
|
|
which hello
|
|
hello
|