Could you post your dmesg log? On Wednesday, November 15, 2017 at 10:51:29 AM UTC+2, Alexander Rössler wrote: > > 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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