Hello.
I use btrfs with 5 subvolumes.
-
@is mounted to/ -
@homeis mounted to/home -
@nixis mounted to/nix/ -
@var@logis mounted to/var/log -
@swapis mounted to/swap
On the default kernel 6.6.32, this setup shows no issues, however when I update to the latest kernel, it instead throws an error pertaining to failing to mount /sysroot/var/log, then a kernel panic looking log, and finally it stops without even allowing me to enter emergency console.
What could be the issue?
`hardware-configuration.nix`
{ config, lib, pkgs, modulesPath, ... }:
{
imports =
[ (modulesPath + "/installer/scan/not-detected.nix")
];
boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" "sr_mod" "rtsx_usb_sdmmc" ];
boot.initrd.kernelModules = [ ];
boot.kernelModules = [ "kvm-intel" ];
boot.extraModulePackages = [ ];
fileSystems."/" =
{ device = "/dev/disk/by-uuid/3ab94ea4-5b80-493e-a686-dcd40256dd48";
fsType = "btrfs";
options = [ "subvol=@" "compress=zstd:1" ];
};
boot.initrd.luks.devices."root".device = "/dev/disk/by-uuid/070c8951-af82-4a57-bc44-a0b85f8034ef";
fileSystems."/home" =
{ device = "/dev/disk/by-uuid/3ab94ea4-5b80-493e-a686-dcd40256dd48";
fsType = "btrfs";
options = [ "subvol=@home" "compress=zstd:1" ];
};
fileSystems."/nix" =
{ device = "/dev/disk/by-uuid/3ab94ea4-5b80-493e-a686-dcd40256dd48";
fsType = "btrfs";
options = [ "subvol=@nix" "noatime" ];
};
fileSystems."/var/log" =
{ device = "/dev/disk/by-uuid/3ab94ea4-5b80-493e-a686-dcd40256dd48";
fsType = "btrfs";
options = [ "subvol=@var@log" "compress:zstd" ];
};
fileSystems."/boot" =
{ device = "/dev/disk/by-uuid/7D83-6D26";
fsType = "vfat";
options = [ "uid=0" "gid=0" "fmask=0077" "dmask=0077" ];
};
fileSystems."/swap" =
{ device = "/dev/disk/by-uuid/3ab94ea4-5b80-493e-a686-dcd40256dd48";
fsType = "btrfs";
options = [ "subvol=@swap" ];
};
swapDevices = [ { device = "/swap/swapfile"; } ];
# Enables DHCP on each ethernet and wireless interface. In case of scripted networking
# (the default) this is the recommended approach. When using systemd-networkd it's
# still possible to use this option, but it's recommended to use it in conjunction
# with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
networking.useDHCP = lib.mkDefault true;
# networking.interfaces.enp0s20u1.useDHCP = lib.mkDefault true;
# networking.interfaces.enp2s0.useDHCP = lib.mkDefault true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
}