Interesting, I noticed that my ssh keys where regenerated at every single
boot thanks to a wrong sshd_config.
However, after fixing this problem, my usb0 interface does not connect
anymore.
Am Mittwoch, 15. November 2017 09:51:29 UTC+1 schrieb Alexander Rössler:
>
> Hello everyone,
>
> I'm using the latest IoT images for the BBB and noticed that the bootup
> time from the eMMC is very slow. it takes ~1.5min for the USB gadget
> network interface to appear under Linux.
>
> What can I do to improve the startup performance of the BBB?
>
> So far I have disabled auto for the eth0 interface.
>
> sudo nano /etc/network/interfaces
> allow-hotplug eth0
>
>
> Moreover, I have disabled graphical boot.
>
> systemctl set-default multi-user.target
>> systemctl get-default
>
>
> Still very slow is the generic-board-startup.service
>
> 1min 53.980s dev-mmcblk1p1.device
>1min 50.627s generic-board-startup.service
> 4.208s ModemManager.service
> 4.106s systemd-udev-trigger.service
> 2.366s networking.service
> 2.032s NetworkManager.service
> 1.973s capemgr.service
> 1.838s systemd-journald.service
> 1.809s pppd-dns.service
> 1.579s dnsmasq.service
> 1.486s rsyslog.service
> 1.098s avahi-daemon.service
> 920ms systemd-logind.service
> 856ms systemd-udevd.service
> 845ms bb-wl18xx-wlan0.service
> 737ms sys-fs-fuse-connections.mount
> 730ms ssh.service
> 724ms systemd-sysctl.service
> 719ms systemd-timesyncd.service
> 651ms sys-kernel-debug.mount
> 604ms systemd-update-utmp.service
> 592ms dev-mqueue.mount
> 559ms sys-kernel-config.mount
> 493ms systemd-remount-fs.service
> 458ms polkit.service
> 448ms systemd-user-sessions.service
> 414ms systemd-tmpfiles-setup-dev.service
> 413ms systemd-tmpfiles-setup.service
> 360ms systemd-random-seed.service
> 359ms systemd-journal-flush.service
> 319ms systemd-modules-load.service
> 319ms kmod-static-nodes.service
> 225ms systemd-update-utmp-runlevel.service
> 168ms bb-wl18xx-bluetooth.service
>
>
> I noticed that SSH key regeneration takes ~15s at boot. However, when I
> removed /etc/ssh/ssh.regenerate USB networking did not work anymore.
>
> What else can I do to make the BBB boot faster?
>
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