r0 = openat$nvram(0xffffffffffffff9c, &(0x7f0000000040), 0xbbf3c2551f18913a, 0x0)
pwritev2(r0, &(0x7f0000000180)=[{&(0x7f00000002c0)="9e", 0x1}], 0x1, 0x0, 0x0, 0x0)