/proc/sys/kernel/random
NameSizeModeActions
boot_id00444editdlrm
entropy_avail00444editdlrm
poolsize00444editdlrm
read_wakeup_threshold00644editdlrm
urandom_min_reseed_secs00644editdlrm
uuid00444editdlrm
write_wakeup_threshold00644editdlrm
Edit: /proc/sys/kernel/random/boot_id (0B)
aa7c3705-e22a-4996-bf35-57ac2e229e9d