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My (pretty new) computer boots very slow; I see the purple empty screen for more than a minute until the Ubuntu logo appears.

dmesg shows a gap of 60 seconds in which nothing seems to happen (no CPU load or iowait). I suspect is has something to do with udev or udevadm, since disk utilization spikes when they exit.

I already unplugged everything I could (second harddrive, all usb devices), but that didn't help.

Setting udev logging to "debug" in /etc/udev/udev.conf gave me some logs, but without timing information.

What can I do to debug this further?

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cweiske
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1 Answers1

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It seems I'm hitting Bug #906358: udev and lvm2 hang at boot.

I found it when looking at /var/log/syslog - the first line in there after the gap was

lp: driver loaded but no devices found

Searching for it gave me [xubuntu] Boot hangs for 60 seconds under 3.0.0-14-generic, which in turn linked to the bug.

cweiske
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