From d5ab95ba147ee82661d1c9d14df841a52ef784ee Mon Sep 17 00:00:00 2001 From: Keith Nash Date: Sun, 15 Dec 2019 14:15:14 -0600 Subject: [PATCH] Update README.md Added reference to device options based on comments by bcmryan --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index dbd1aa6..1b586b5 100644 --- a/README.md +++ b/README.md @@ -42,7 +42,7 @@ The only required command-line argument is the device specifier, e.g.: The script is distributed with 'dry run mode' enabled. This lets you check the sleep duration calculations and to insure that the sequence of commands suits your needs. In 'dry runs' the script does not actually perform any SMART tests or invoke the `sleep` or `badblocks` programs. __You will need to edit the script and change the `Dry_Run` variable, setting it to 0, in order to actually perform tests on drives.__ -Some users with atypical hardware environments may need to modify the script and specify the `smartctl` command device type explictly with the `-d` option. User reported success using `-d sat` with a Western Digital MyBook external USB enclosure. +Some users with atypical hardware environments may need to modify the script and specify the `smartctl` command device type explictly with the `-d` option. User __bcmryan__ reports success using `-d sat` with a Western Digital MyBook 8TB external drive enclosure. Before using the script on FreeBSD systems (including FreeNAS) you must first execute the `sysctl` command below to alter the kernel's geometry debug flags. This allows `badblocks` to write to the entire disk: