info.txt

$ parted /dev/sda print
Model: APPLE SD Card Reader (scsi)
Disk /dev/sda: 31.7GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name  Flags
 1      1049kB  31.7GB  31.7GB

$ cryptsetup status lvm
/dev/mapper/lvm is active and is in use.
  type:    LUKS1
  cipher:  aes-xts-plain64
  keysize: 256 bits
  device:  /dev/sda1
  offset:  4096 sectors
  size:    61956063 sectors
  mode:    read/write

$ pvdisplay
  --- Physical volume ---
  PV Name               /dev/mapper/lvm
  VG Name               vg
  PV Size               29.54 GiB / not usable 3.98 MiB
  Allocatable           yes (but full)
  PE Size               4.00 MiB
  Total PE              7562
  Free PE               0
  Allocated PE          7562
  PV UUID               dciazn-LBKi-52WH-WeO1-3gDU-Yy6d-damkD2
   
$ vgdisplay
  --- Volume group ---
  VG Name               vg
  System ID             
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  3
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               1
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               29.54 GiB
  PE Size               4.00 MiB
  Total PE              7562
  Alloc PE / Size       7562 / 29.54 GiB
  Free  PE / Size       0 / 0   
  VG UUID               Jiur5s-g7qU-Vkfm-xCXN-5LWf-uqYD-vKyTwo
   
$ lvdisplay
  --- Logical volume ---
  LV Path                /dev/vg/boot
  LV Name                boot
  VG Name                vg
  LV UUID                944x7g-0mDF-piV3-2gG4-Ouzz-6yBR-giAeaA
  LV Write Access        read/write
  LV Creation host, time nixos, 2017-03-11 23:33:09 +0000
  LV Status              available
  # open                 0
  LV Size                1.00 GiB
  Current LE             256
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:1
   
  --- Logical volume ---
  LV Path                /dev/vg/root
  LV Name                root
  VG Name                vg
  LV UUID                1briPM-HaB3-0meK-wQgZ-eEy7-cX6p-V7vmK1
  LV Write Access        read/write
  LV Creation host, time nixos, 2017-03-11 23:33:41 +0000
  LV Status              available
  # open                 1
  LV Size                28.54 GiB
  Current LE             7306
  Segments               1
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     256
  Block device           254:2
   
$ mount | grep vg 
/dev/mapper/vg-root on /mnt type ext4 (rw,relatime,data=ordered)

nixos-install.txt

updating GRUB 2 menu...
installing the GRUB 2 boot loader on /dev/sda...
Installing for i386-pc platform.
You have a memory leak (not released memory pool):
 [0x8d5350] dtree
 [0x8d4d70] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d5350] dtree
 [0x8d4d70] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d5350] dtree
 [0x8d4d70] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d5350] dtree
 [0x8d4d70] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d4e50] dtree
 [0x8d74f0] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d4e50] dtree
 [0x8d74f0] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d4e50] dtree
 [0x8d74f0] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d8060] dtree
 [0xb82950] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d8060] dtree
 [0xb82950] dtree
Internal error: Unreleased memory pool(s) found.
You have a memory leak (not released memory pool):
 [0x8d8060] dtree
 [0xb82950] dtree
Internal error: Unreleased memory pool(s) found.
/nix/store/5kymdi4b6yrskx0569zw7xj69bcy4ryq-grub-2.x-2015-11-16/sbin/grub-install: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible.
/nix/store/5kymdi4b6yrskx0569zw7xj69bcy4ryq-grub-2.x-2015-11-16/sbin/grub-install: error: embedding is not possible, but this is required for RAID and LVM install.
/nix/store/jsjq388zm25mrq0d3r8djv9xgssvhjcl-install-grub.pl: installation of GRUB on /dev/sda failed