Boot demorado ubuntu 14.04

[tharael]

Boa a noite todos.

Ultimamente, o tempo de boot do sistema tem demorado bem mais do que o normal para o Ubuntu, chegou a demorar cerca de 75 segundos, após desativar vários serviços que não utilizo, consegui 57 segundos. Como antigamente o tempo do boot ficava em torno de 25 segundos, não sei oque pode ser.

Resultado dmesg:

Código: [Selecionar]

[    0.377508] NET: Registered protocol family 1
[    0.377756] ACPI: PCI Interrupt Link [LUB0] enabled at IRQ 23
[    4.455306] Console: switching to colour frame buffer device 160x50
[    4.457631] uvesafb: framebuffer at 0xdd000000, mapped to 0xffffc90010e80000, using 10125k, total 14336k
[    4.457665] fb0: VESA VGA frame buffer device
[    4.614756] EXT4-fs (sda6): mounted filesystem with ordered data mode. Opts: (null)
[    4.874081] random: nonblocking pool is initialized
[   28.220770] Adding 8386556k swap on /dev/sda5.  Priority:-1 extents:1 across:8386556k FS
[   28.336172] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   28.336184] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
[   28.446568] systemd-udevd[369]: starting version 204
[   28.774530] lp: driver loaded but no devices found
[   28.837486] ppdev: user-space parallel port driver
[   28.860490] parport_pc 00:04: reported by Plug and Play ACPI
[   28.860534] parport0: PC-style at 0x378, irq 7 [PCSPP,TRISTATE]
[   28.943689] lp0: using parport0 (interrupt-driven).
[   29.399814] MCE: In-kernel MCE decoding enabled.
[   29.402932] EDAC MC: Ver: 3.0.0
[   29.438222] AMD64 EDAC driver v3.4.0
[   29.438248] EDAC amd64: DRAM ECC disabled.
[   29.438253] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
[   29.438253]  Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
[   29.438253]  (Note that use of the override may cause unknown side effects.)
[   29.440561] kvm: Nested Virtualization enabled
[   29.440563] kvm: Nested Paging enabled
[   29.552067] ACPI Warning: 0x0000000000000600-0x000000000000063f SystemIO conflicts with Region \_SB_.PCI0.SBRG.ASOC.SMRG 1 (20131115/utaddress-251)
[   29.552068] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[   29.552110] i2c i2c-0: nForce2 SMBus adapter at 0x700
[   29.608216] [drm] Initialized drm 1.1.0 20060810
[   30.075600] ACPI: PCI Interrupt Link [LAZA] enabled at IRQ 22
[   30.075609] hda_intel: Disabling MSI
[   30.075627] hda-intel 0000:00:05.0: Disabling 64bit DMA
[   30.080024] hda-intel 0000:00:05.0: Enable delay in RIRB handling
[   30.209922] type=1400 audit(1402962749.297:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=534 comm="apparmor_parser"
[   30.209929] type=1400 audit(1402962749.297:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=534 comm="apparmor_parser"
[   30.209933] type=1400 audit(1402962749.297:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=534 comm="apparmor_parser"
[   30.209944] type=1400 audit(1402962749.297:5): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/sbin/dhclient" pid=535 comm="apparmor_parser"
[   30.209952] type=1400 audit(1402962749.297:6): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=535 comm="apparmor_parser"
[   30.209955] type=1400 audit(1402962749.297:7): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=535 comm="apparmor_parser"
[   30.209967] type=1400 audit(1402962749.297:8): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/sbin/dhclient" pid=536 comm="apparmor_parser"
[   30.209974] type=1400 audit(1402962749.297:9): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=536 comm="apparmor_parser"
[   30.209978] type=1400 audit(1402962749.297:10): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=536 comm="apparmor_parser"
[   30.210310] type=1400 audit(1402962749.297:11): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=534 comm="apparmor_parser"
[   30.211256] Linux video capture interface: v2.00
[   30.278492] gspca_main: v2.14.0 registered
[   30.317352] gspca_main: gspca_zc3xx-2.14.0 probing 0ac8:307b
[   30.628137] autoconfig: line_outs=1 (0x1c/0x0/0x0/0x0/0x0) type:line
[   30.628141]    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[   30.628142]    hp_outs=1 (0x1d/0x0/0x0/0x0/0x0)
[   30.628143]    mono: mono_out=0x0
[   30.628144]    dig-out=0x20/0x0
[   30.628145]    inputs:
[   30.628146]      Rear Mic=0x1a
[   30.628147]      Front Mic=0x1e
[   30.628148]      Line=0x1b
[   30.860088] EXT4-fs (sda6): re-mounted. Opts: errors=remount-ro
[   31.150030] nvidia: module license 'NVIDIA' taints kernel.
[   31.150033] Disabling lock debugging due to kernel taint
[   31.157168] nvidia: module verification failed: signature and/or  required key missing - tainting kernel
[   31.161353] ACPI: PCI Interrupt Link [LNED] enabled at IRQ 18
[   31.161375] vgaarb: device changed decodes: PCI:0000:02:00.0,olddecodes=io+mem,decodes=none:owns=none
[   31.161576] [drm] Initialized nvidia-drm 0.0.0 20130102 for 0000:02:00.0 on minor 0
[   31.161584] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  331.38  Wed Jan  8 19:32:30 PST 2014
[   31.372503] input: HDA NVidia Front Headphone as /devices/pci0000:00/0000:00:05.0/sound/card0/input8
[   31.372585] input: HDA NVidia Line Out as /devices/pci0000:00/0000:00:05.0/sound/card0/input7
[   31.372637] input: HDA NVidia Line as /devices/pci0000:00/0000:00:05.0/sound/card0/input6
[   31.372690] input: HDA NVidia Front Mic as /devices/pci0000:00/0000:00:05.0/sound/card0/input5
[   31.372743] input: HDA NVidia Rear Mic as /devices/pci0000:00/0000:00:05.0/sound/card0/input4
[   31.576473] init: failsafe main process (678) killed by TERM signal
[   32.106760] input: gspca_zc3xx as /devices/pci0000:00/0000:00:02.0/usb2/2-4/input/input9
[   32.106879] usbcore: registered new interface driver gspca_zc3xx
[   32.960585] Bluetooth: Core ver 2.17
[   32.960606] NET: Registered protocol family 31
[   32.960607] Bluetooth: HCI device and connection manager initialized
[   32.960615] Bluetooth: HCI socket layer initialized
[   32.960617] Bluetooth: L2CAP socket layer initialized
[   32.960621] Bluetooth: SCO socket layer initialized
[   33.088727] Bluetooth: RFCOMM TTY layer initialized
[   33.088737] Bluetooth: RFCOMM socket layer initialized
[   33.088743] Bluetooth: RFCOMM ver 1.11
[   33.105791] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   33.105793] Bluetooth: BNEP filters: protocol multicast
[   33.105799] Bluetooth: BNEP socket layer initialized
[   33.995231] init: cups main process (828) killed by HUP signal
[   33.995245] init: cups main process ended, respawning
[   34.586076] vboxdrv: Found 6 processor cores.
[   34.586978] vboxdrv: fAsync=0 offMin=0x449 offMax=0x36ba
[   34.587050] vboxdrv: TSC mode is 'synchronous', kernel timer mode is 'normal'.
[   34.587051] vboxdrv: Successfully loaded version 4.3.10_Ubuntu (interface 0x001a0007).
[   34.599245] vboxpci: IOMMU not found (not registered)
[   34.619658] 8139too 0000:01:07.0 eth0: link down
[   34.619716] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   34.620026] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   34.622363] forcedeth 0000:00:07.0: irq 43 for MSI/MSI-X
[   34.622382] forcedeth 0000:00:07.0 eth1: MSI enabled
[   36.970099] nvidia 0000:02:00.0: irq 44 for MSI/MSI-X
[   38.176522] init: plymouth-upstart-bridge main process ended, respawning
[   38.180624] init: plymouth-upstart-bridge main process (2618) terminated with status 1
[   38.180634] init: plymouth-upstart-bridge main process ended, respawning
[   59.454773] systemd-hostnamed[4597]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[   62.654629] audit_printk_skb: 186 callbacks suppressed
[   62.654632] type=1400 audit(1402962782.316:74): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=4624 comm="apparmor_parser"
[   62.654638] type=1400 audit(1402962782.316:75): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=4624 comm="apparmor_parser"
[   62.654972] type=1400 audit(1402962782.316:76): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=4624 comm="apparmor_parser"
[  381.686443] systemd-hostnamed[19251]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!

Após pesquisar no forum encontrei um programa chamado bootchart, instalei para que seja possível visualizar o tempo de boot de cada serviço/etapa, mas não fica muito claro para mim oque pode estar causando tanta demora no boot.

Imagem BootChart
http://cdn.imghack.se/images/f7f4f1c10782264a033b119244af6f55.png

Alguém poderia me auxiliar com o bootchart e o dmesg para deixar o boot do sistema mais rápido?
Agradeço a todos pela ajuda e atenção.
Abraço!

[zekkerj]

Pela minha experiência, uma coisa que amarra o boot é a configuração da rede. Chama a atenção este trecho:

[   34.619658] 8139too 0000:01:07.0 eth0: link down
[   34.619716] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[   34.620026] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready

Confirme que você não tem configuração para ativar a placa de rede no arquivo "/etc/network/interfaces", a não ser que vc tenha um cabo de rede conectado à máquina sempre. Também não deixe a placa configurada para adquirir um IP automaticamente, se vc não tiver um servidor DHCP ativo em sua rede local.

Por fim, se vc não tem suporte a IPv6 em sua rede local, desative o serviço.