On Tue, Nov 27, 2018 at 1:15 AM Grant Grundler <span> wrote: > > Hi! > Asus Chromebox (Panther) with Celeron 2995U processor is supposed to > have a HW Random Number Generator: > https://ark.intel.com/products/75608/Intel-Celeron-Processor-2955U-2M-Cache-... > > (Intel calls it Secure Key) > > But "modprobe intel-rng" is failing with "No such device" (Debian > 4.18.0-2-amd64 kernel). > > That's because there isn't one listed in "lspci" output: > root@stoke:~# lspci -n > 00:00.0 0600: 8086:0a04 (rev 09) > 00:02.0 0300: 8086:0a06 (rev 09) > 00:03.0 0403: 8086:0a0c (rev 09) > 00:14.0 0c03: 8086:9c31 (rev 04) > 00:16.0 0780: 8086:9c3a (rev 04) > 00:1b.0 0403: 8086:9c20 (rev 04) > 00:1c.0 0604: 8086:9c14 (rev e4) > 00:1c.1 0604: 8086:9c16 (rev e4) > 00:1c.2 0604: 8086:9c18 (rev e4) > 00:1f.0 0601: 8086:9c45 (rev 04) > 00:1f.2 0106: 8086:9c03 (rev 04) > 00:1f.3 0c05: 8086:9c22 (rev 04) > 00:1f.6 1180: 8086:9c24 (rev 04) > 01:00.0 0200: 10ec:8168 (rev 0c) > 02:00.0 0280: 168c:0034 (rev 01) > > Could Firmware add the HW RNG so intel-rng is happy? > > (I'll append human readable below) > > Current firmware is: > [ 0.000000] DMI: Google Panther/Panther, BIOS MattDevo 04/18/2016 > > And if this is fixed in a newer firmware update, please hand me the > paper bag I can hide under. :) I've downloaded a newer version of the > SeaBIOS but haven't (yet) found the instructions to install it.
While not likely to fix your issue, that firmware is very old, and updating wouldn't be a terrible idea. You can update via my ChromeOS Device Firmware Utility Script, see https://mrchromebox.tech/#fwscript. Both UEFI and Legacy Boot (SeaBIOS) versions are available for your device.
> > Why do I care about HW RNG? > Because of this: > ... > [ 8.560270] r8169 0000:01:00.0 enp1s0: link up > [ 8.560287] IPv6: ADDRCONF(NETDEV_CHANGE): enp1s0: link becomes ready > [19039.712644] random: crng init done > [19039.712649] random: 7 urandom warning(s) missed due to ratelimiting > [19044.485625] wlp2s0: authenticate with ... > ...
I'm surprised you're seeing this with such a recent kernel. I saw this on a few Chromebooks with earlier 4.1x kernels, and would manifest as a delay in the desktop loading, but could be mitigated by providing trackpad input. A quick googling says to install the rng-tools5 package if you haven't already
> > Yes, several *hours* until the crng was initialized and then > wpa_supplicant could start talking on WIFI. :( > > The length of the delay varies...shortest was 7 minutes. > > thanks for any help, > grant > > > # lspci > 00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09) > 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT > Integrated Graphics Controller (rev 09) > 00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09) > 00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) > 00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04) > 00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04) > 00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4) > 00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4) > 00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4) > 00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04) > 00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 > [AHCI mode] (rev 04) > 00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04) > 00:1f.6 Signal processing controller: Intel Corporation 8 Series > Thermal (rev 04) > 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. > RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c) > 02:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network > Adapter (rev 01) > > -- > coreboot mailing list: firstname.lastname@example.org > https://mail.coreboot.org/mailman/listinfo/coreboot</span>