pyrox.dev
amazon-grow-partition module: autodetect the root device
+6
-2
nixos/modules/virtualisation/amazon-grow-partition.nix
+6
-2
nixos/modules/virtualisation/amazon-grow-partition.nix
···
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10
copy_bin_and_libs ${pkgs.gawk}/bin/gawk
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copy_bin_and_libs ${pkgs.gnused}/bin/sed
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copy_bin_and_libs ${pkgs.utillinux}/sbin/sfdisk
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+
copy_bin_and_libs ${pkgs.utillinux}/sbin/lsblk
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cp -v ${pkgs.cloud-utils}/bin/growpart $out/bin/growpart
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ln -s sed $out/bin/gnused
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'';
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boot.initrd.postDeviceCommands = ''
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-
if [ -e /dev/xvda ] && [ -e /dev/xvda1 ]; then
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-
TMPDIR=/run sh $(type -P growpart) /dev/xvda 1
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+
rootDevice="${config.fileSystems."/".device}"
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+
if [ -e "$rootDevice" ]; then
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+
rootDevice="$(readlink -f "$rootDevice")"
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parentDevice="$(lsblk -npo PKNAME "$rootDevice")"
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+
TMPDIR=/run sh $(type -P growpart) "$parentDevice" "''${rootDevice#$parentDevice}"
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udevadm settle
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fi
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'';