Slower boot since GRUB update

Can you define slower... Is it taking minutes to boot?

It is taking about 50 secs to get the password screen.

The machine is Dell Inspiron 660 desktop Core i5, 4 physical processors of 3GHz each.

I never timed the previous boots. They seem slower now.

If you run:

dmesg | less

Use SPACE to scroll down page by page and look for large gaps in the numbers on the left. This is seconds since the kernel came online. This will help isolate the issue.

Here is the final screen of dmesg | less

[ 16.315349] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 16.495787] r8169 0000:04:00.0 eth0: link down
[ 16.495803] r8169 0000:04:00.0 eth0: link down
[ 16.495836] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 16.496109] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 18.061465] r8169 0000:04:00.0 eth0: link up
[ 18.061473] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 21.918107] init: plymouth-upstart-bridge main process ended, respawning
[ 21.921780] init: plymouth-upstart-bridge main process (1558) terminated with status 1
[ 21.921790] init: plymouth-upstart-bridge main process ended, respawning
[ 30.720726] hda-codec: out of range cmd 0:4:707:ffffffff
[ 41.414185] audit_printk_skb: 177 callbacks suppressed
[ 41.414187] type=1400 audit(1431817764.860:71): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2008 comm="apparmor_parser"
[ 41.414192] type=1400 audit(1431817764.860:72): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2008 comm="apparmor_parser"
[ 41.414532] type=1400 audit(1431817764.860:73): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2008 comm="apparmor_parser"
[ 50.155098] hda-codec: out of range cmd 0:5:707:ffffffbf
(END)

That's 45 seconds. Seems to be an apparmor issue

Are you sure? Here is another dump from today. Note the very large amount of time to get to audit_printk_skb in both cases.

[ 13.243280] vboxdrv: Successfully loaded version 4.3.10_Ubuntu (interface 0x001a0007).
[ 13.257947] vboxpci: IOMMU not found (not registered)
[ 13.862999] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 13.865996] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 14.195776] r8169 0000:04:00.0 eth0: link down
[ 14.195796] r8169 0000:04:00.0 eth0: link down
[ 14.195827] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 14.196138] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 15.769090] r8169 0000:04:00.0 eth0: link up
[ 15.769097] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 16.223084] init: plymouth-upstart-bridge main process ended, respawning
[ 42.424836] audit_printk_skb: 195 callbacks suppressed
[ 42.424839] type=1400 audit(1431891089.974:77): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2632 comm="apparmor_parser"
[ 42.424844] type=1400 audit(1431891089.974:78): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2632 comm="apparmor_parser"
[ 42.425185] type=1400 audit(1431891089.974:79): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2632 comm="apparmor_parser"
(END)

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