Date: Wed, 11 Dec 2019 14:35:34 -0800 From: David Wolfskill <david@catwhisker.org> To: hackers@freebsd.org Subject: Setting up encrypted swap: "swapon" vs. "swapctl -a" Message-ID: <20191211223534.GU27431@albert.catwhisker.org>
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--kSOhxpxUsM1s2qz/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable I find that swapon(8) allows a -E flag: | The swapon utility adds the specified swap devices to the system... | The -E option causes each of following devices to receive a BIO_DELETE | command.... While "swapctl -a" is (otherwise) similar to "swapon,": | swapctl -E -a /dev/nda11p5.eli | usage: swapctl [-AghklmsU] [-a file ... | -d file ...] | swapctl -a /dev/nda11p5.eli | swapctl: adding /dev/nda11p5.eli as swap device | swapoff /dev/nda11p5.eli | swapon -E /dev/nda11p5.eli That said, I also note: | The swapctl utility exists primarily for those familiar with other | BSDs and may be used to add, remove, or list swap devices.... Should "swapctl -a" also accept & make use of -E? Peace, david --=20 David H. Wolfskill david@catwhisker.org Some might think an oath of office is as meaningful as a marriage vow. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --kSOhxpxUsM1s2qz/ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEE4owz2QxMJyaxAefyQLJg+bY2PckFAl3xbzZfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEUy OEMzM0Q5MEM0QzI3MjZCMTAxRTdGMjQwQjI2MEY5QjYzNjNEQzkACgkQQLJg+bY2 PcmO+ggApvDQ1AwQiqCY+wy4LmsMloYmFp5JOpb2g7icXFxw/K8vLOjuBo578bV3 vc/aF2CDVXrAEPQjej0/yCPoxPtmztPULnT/72g5bXaYaEvfJGo2xxBCA0Xkz7ZY khlcUBPiJNqa+eKJWtHN7iIo5yiZUhBoCJ72xcijWlM89g/fClcgFUqaYU80I4YH Eflw6gjaWsuMS6qkJx/wtqCQOC7xds/7cX8b/Gs/JePqb38NAjSMI8R1a9ADKZXp 6qKpvICa6KDGF4EmXShwTthVYftkJ94Bg66qXFt+yf9vRyHhw5/RUAWchqbpb4fv qZvRtztfYv9WK53G+/LDa+mjaCxnjQ== =vEOv -----END PGP SIGNATURE----- --kSOhxpxUsM1s2qz/--
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