[...]
registering closures...
populating...
creating FAT partition...
mkfs.fat 4.1 (2017-01-24)
mounting root partition...
[  688.377705] EXT4-fs (vda1): mounted filesystem with ordered data mode. Opts: (null)
installing bootloader...
/gnu/store/0g5bgkc757xmafxs2prjj896qpzj9wan-grub-efi-2.02/sbin/grub-install: error: /gnu/store/0g5bgkc757xmafxs2prjj896qpzj9wan-grub-efi-2.02/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
ERROR: In procedure scm-error:
ERROR: failed to install GRUB

Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue.
[  688.458461] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
[  688.458461] 
[  688.459789] CPU: 0 PID: 1 Comm: init Not tainted 4.12.0-gnu #1
[  688.460629] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
[  688.462310] Call Trace:
[  688.462857]  dump_stack+0x63/0x82
[  688.463785]  panic+0xe4/0x22d
[  688.464611]  do_exit+0xae2/0xaf0
[  688.465509]  ? wake_up_state+0x10/0x20
[  688.466330]  do_group_exit+0x43/0xb0
[  688.467147]  SyS_exit_group+0x14/0x20
[  688.467999]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[  688.469144] RIP: 0033:0x5e6b98
[  688.469902] RSP: 002b:00007ffe66065998 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[  688.471236] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000005e6b98
[  688.472252] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[  688.473413] RBP: 0000000000a51938 R08: 00000000000000e7 R09: ffffffffffffffc8
[  688.475139] R10: 0000000000000ec0 R11: 0000000000000246 R12: 0000000000000001
[  688.476422] R13: 0000000000a7f020 R14: 000000000352b700 R15: 0000000000000001
[  688.477540] Kernel Offset: 0x37000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[  688.479119] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000
[  688.479119]