resize2fs not present during stage-1

[tomberek]

On EC2 deployments, the ami's (as well as some custom one's I've made in attempts to fix this) don't seem to have resize2fs in order to expand to accommodate the ebsInitialRootDiskSize.

[    3.126921] random: fast init done
[    5.514947] stage-1-init: nixos: 78561/131072 files (0.1% non-contiguous), 287748/523776 blocks
[    5.525847] stage-1-init: /init: line 394: resize2fs: not found
...

Not sure why https://github.com/NixOS/nixpkgs/blame/30c312341fbe435349f364fcd306a12c28fcde8d/nixos/modules/system/boot/stage-1.nix#L130 does not go into effect.

[tomberek]

    boot.initrd.postDeviceCommands= ''
    ${pkgs.e2fsprogs}/sbin/e2fsck -fp /dev/disk/by-label/nixos
    ${pkgs.e2fsprogs}/sbin/resize2fs /dev/disk/by-label/nixos
  '';

This is a hacky workaround that accomplishes the resize, but it isn't the right solution because the other "./resize2fs" call still fails.

[AmineChikhaoui]

I used ami-009c9c3f1af480ff3 which is the NixOS 18.09 ami and didn't see this:

[amine@nixos:~]$ nixops show-console-output -d lb4-machine build3
[    0.001000] Cannot get hvm parameter CONSOLE_EVTCHN (18): -22!
[    0.471186] Cannot get hvm parameter CONSOLE_EVTCHN (18): -22!

<<< NixOS Stage 1 >>>

loading module xen-blkfront...
loading module xen-netfront...
loading module fuse...
loading module dm_mod...
loading module af_packet...
running udev...
kbd_mode: KDSKBMODE: Inappropriate ioctl for device
bringing up network interface eth0...
bringing up network interface lo...
acquiring IP address via DHCP...
udhcpc: started, v1.29.3
udhcpc: sending discover
udhcpc: sending select for 10.0.7.90
udhcpc: lease of 10.0.7.90 obtained, lease time 3600
networking is up!
starting device mapper and LVM...
CHANGED: partition=1 start=2048 old: size=4190208 end=4192256 new: size=1468004319,end=1468006
checking /dev/disk/by-label/nixos...
fsck (busybox 1.29.3)
[fsck.ext4 (1) -- /mnt-root/] fsck.ext4 -a /dev/disk/by-label/nixos
nixos: clean, 73413/131072 files, 285205/523776 blocks
resizing /dev/disk/by-label/nixos...
nixos: 73413/131072 files (0.1% non-contiguous), 285205/523776 blocks
resize2fs 1.44.4 (18-Aug-2018)

[talyz]

I have this too - NixOS/nixpkgs#57633 should fix it (at least it did for me)

[AmineChikhaoui]

cherry-picked to 19.03 (NixOS/nixpkgs#59848). Will generate 19.03 amis as soon as the channel is updated