[    1.423138] tg3 0000:02:00.0 eth0: dma_rwctrl[76180000] dma_mask[64-bit]
[    1.440357] nouveau  [   VBIOS][0000:01:00.0] ... appears to be valid
[    1.440359] nouveau  [   VBIOS][0000:01:00.0] using image from PRAMIN
[    1.440446] nouveau  [   VBIOS][0000:01:00.0] BIT signature found
[    1.440449] nouveau  [   VBIOS][0000:01:00.0] version 62.98.42.00.06
[    1.460506] nouveau 0000:01:00.0: irq 42 for MSI/MSI-X
[    1.460516] nouveau  [     PMC][0000:01:00.0] MSI interrupts enabled
[    1.460609] nouveau  [     PFB][0000:01:00.0] RAM type: DDR2
[    1.460611] nouveau  [     PFB][0000:01:00.0] RAM size: 256 MiB
[    1.460612] nouveau  [     PFB][0000:01:00.0]    ZCOMP: 960 tags
[    1.462279] nouveau  [  PTHERM][0000:01:00.0] FAN control: PWM
[    1.462291] nouveau  [  PTHERM][0000:01:00.0] fan management: automatic
[    1.462334] nouveau  [  PTHERM][0000:01:00.0] internal sensor: yes
[    1.462340] nouveau  [     CLK][0000:01:00.0] 03: core 169 MHz shader 338 MHz memory 100 MHz
[    1.462343] nouveau  [     CLK][0000:01:00.0] 0f: core 540 MHz shader 1300 MHz memory 500 MHz
[    1.462414] nouveau  [     CLK][0000:01:00.0] --: core 540 MHz shader 1300 MHz memory 499 MHz
[    1.462555] [TTM] Zone  kernel: Available graphics memory: 429566 kiB
[    1.462556] [TTM] Zone highmem: Available graphics memory: 2038290 kiB
[    1.462558] [TTM] Initializing pool allocator
[    1.462563] [TTM] Initializing DMA pool allocator
[    1.462573] nouveau  [     DRM] VRAM: 256 MiB
[    1.462575] nouveau  [     DRM] GART: 1048576 MiB
[    1.462578] nouveau  [     DRM] TMDS table version 2.0
[    1.462580] nouveau  [     DRM] DCB version 4.0
[    1.462582] nouveau  [     DRM] DCB outp 00: 02000300 00000028
[    1.462584] nouveau  [     DRM] DCB outp 01: 01000302 00000010
[    1.462586] nouveau  [     DRM] DCB outp 02: 04011310 00000028
[    1.462588] nouveau  [     DRM] DCB outp 03: 02011312 00000010
[    1.462589] nouveau  [     DRM] DCB outp 04: 010223f1 00c0c080
[    1.462591] nouveau  [     DRM] DCB conn 00: 00001030
[    1.462593] nouveau  [     DRM] DCB conn 01: 00002130
[    1.462595] nouveau  [     DRM] DCB conn 02: 00000210
[    1.462596] nouveau  [     DRM] DCB conn 03: 00000211
[    1.462598] nouveau  [     DRM] DCB conn 04: 00000213
[    1.472845] nouveau W[     DRM] failed to create encoder 0/1/0: -19
[    1.472847] nouveau W[     DRM] TV-1 has no encoders, removing
[    1.472869] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.472870] [drm] Driver supports precise vblank timestamp query.
[    1.736290] nouveau  [     DRM] MM: using M2MF for buffer copies
[    1.798669] nouveau  [     DRM] allocated 1366x768 fb: 0x60000, bo f5cdc400
[    1.798749] fbcon: nouveaufb (fb0) is primary device
[    1.798774] Console: switching to colour frame buffer device 170x48
[    1.798801] nouveau 0000:01:00.0: fb0: nouveaufb frame buffer device
[    1.798802] nouveau 0000:01:00.0: registered panic notifier
[    1.832029] [drm] Initialized nouveau 1.1.2 20120801 for 0000:01:00.0 on minor 0
[    1.852034] tsc: Refined TSC clocksource calibration: 2925.999 MHz
[    2.076029] usb 2-1: new low-speed USB device number 2 using uhci_hcd
[    2.283705] usb 2-1: New USB device found, idVendor=413c, idProduct=2105
[    2.283710] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    2.283713] usb 2-1: Product: Dell USB Keyboard
[    2.283716] usb 2-1: Manufacturer: Dell
[    2.325841] hidraw: raw HID events driver (C) Jiri Kosina
[    2.362114] usbcore: registered new interface driver usbhid
[    2.362116] usbhid: USB HID core driver
[    2.365899] input: Dell Dell USB Keyboard as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.0/0003:413C:2105.0001/input/input5
[    2.365977] hid-generic 0003:413C:2105.0001: input,hidraw0: USB HID v1.10 Keyboard [Dell Dell USB Keyboard] on usb-0000:00:1d.0-1/input0
[    2.556029] usb 4-2: new full-speed USB device number 2 using uhci_hcd
[    2.741663] usb 4-2: New USB device found, idVendor=16c0, idProduct=0483
[    2.741668] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.741672] usb 4-2: Product: USB Serial
[    2.741675] usb 4-2: Manufacturer: Teensyduino
[    2.741678] usb 4-2: SerialNumber: 12345
[    2.852071] Switched to clocksource tsc
[    2.984024] usb 5-2: new full-speed USB device number 2 using uhci_hcd
[    3.168136] usb 5-2: New USB device found, idVendor=046d, idProduct=c52b
[    3.168140] usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    3.168144] usb 5-2: Product: USB Receiver
[    3.168147] usb 5-2: Manufacturer: Logitech
[    3.189363] logitech-djreceiver 0003:046D:C52B.0004: hiddev0,hidraw1: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1d.3-2/input2
[    3.246656] input: Logitech Unifying Device. Wireless PID:1025 as /devices/pci0000:00/0000:00:1d.3/usb5/5-2/5-2:1.2/0003:046D:C52B.0004/0003:046D:C52B.0005/input/input6
[    3.246758] logitech-djdevice 0003:046D:C52B.0005: input,hidraw2: USB HID v1.11 Mouse [Logitech Unifying Device. Wireless PID:1025] on usb-0000:00:1d.3-2:1
[    4.356029] floppy0: no floppy controllers found
[   84.463654] random: nonblocking pool is initialized
[  172.786755] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: (null)
[  175.349471] init: plymouth-upstart-bridge main process (268) killed by TERM signal
[  176.964425] Adding 4124668k swap on /dev/mapper/ubuntu--vg-swap_1.  Priority:-1 extents:1 across:4124668k FS
[  177.297806] EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro
[  178.188125] EXT4-fs (sda1): mounting ext2 file system using the ext4 subsystem
[  178.244351] systemd-udevd[425]: starting version 208
[  178.308195] EXT4-fs (sda1): mounted filesystem without journal. Opts: (null)
[  179.532157] lp: driver loaded but no devices found
[  179.612989] ppdev: user-space parallel port driver
[  179.660858] parport_pc 00:02: reported by Plug and Play ACPI
[  179.660909] parport0: PC-style at 0x378 (0x778), irq 7, using FIFO [PCSPP,TRISTATE,COMPAT,ECP]
[  179.756148] lp0: using parport0 (interrupt-driven).
[  183.886340] Floppy drive(s): fd0 is 1.44M
[  183.943502] intel_rng: Firmware space is locked read-only. If you can't or
intel_rng: don't want to disable this in firmware setup, and if
intel_rng: you are certain that your system has a functional
intel_rng: RNG, try using the 'no_fwh_detect' option.
[  183.967812] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[  184.169327] ACPI Warning: SystemIO range 0x00000828-0x0000082f conflicts with OpRegion 0x00000828-0x0000082d (\GLBC) (20140424/utaddress-258)
[  184.169333] ACPI Warning: SystemIO range 0x00000828-0x0000082f conflicts with OpRegion 0x0000082a-0x0000082a (\SACT) (20140424/utaddress-258)
[  184.169336] ACPI Warning: SystemIO range 0x00000828-0x0000082f conflicts with OpRegion 0x00000828-0x00000828 (\SSTS) (20140424/utaddress-258)
[  184.169340] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[  184.169371] lpc_ich: Resource conflict(s) found affecting gpio_ich
[  184.295941] leds_ss4200: no LED devices found
[  184.604180] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[  184.806255] cfg80211: Calling CRDA to update world regulatory domain
[  185.376606] gpio_ich: GPIO from 190 to 239 on gpio_ich
[  185.442829] cdc_acm 4-2:1.0: This device cannot do calls on its own. It is not a modem.
[  185.442874] cdc_acm 4-2:1.0: ttyACM0: USB ACM device
[  185.444857] usbcore: registered new interface driver cdc_acm
[  185.444860] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[  185.535247] input: Dell WMI hotkeys as /devices/virtual/input/input7
[  185.616265] b43legacy-phy0: Broadcom 4306 WLAN found (core revision 4)
[  185.664054] b43legacy-phy0: Loading firmware b43legacy/ucode4.fw
[  185.664141] Broadcom 43xx-legacy driver loaded [ Features: PLID ]
[  185.808266] snd_hda_intel 0000:00:1b.0: irq 43 for MSI/MSI-X
[  186.003068] sound hdaudioC0D0: ALC269VB: SKU not ready 0x411111f0
[  186.003622] sound hdaudioC0D0: autoconfig: line_outs=1 (0x1b/0x0/0x0/0x0/0x0) type:line
[  186.003624] sound hdaudioC0D0:    speaker_outs=1 (0x14/0x0/0x0/0x0/0x0)
[  186.003626] sound hdaudioC0D0:    hp_outs=1 (0x1a/0x0/0x0/0x0/0x0)
[  186.003628] sound hdaudioC0D0:    mono: mono_out=0x0
[  186.003629] sound hdaudioC0D0:    inputs:
[  186.003632] sound hdaudioC0D0:      Rear Mic=0x19
[  186.003634] sound hdaudioC0D0:      Front Mic=0x18
[  186.010603] input: HDA Intel Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[  186.010767] input: HDA Intel Front Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[  186.010924] input: HDA Intel Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[  186.011060] input: HDA Intel Front Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[  186.199271] b43legacy ssb0:0: Direct firmware load failed with error -2
[  186.199276] b43legacy ssb0:0: Falling back to user helper
[  186.908034] floppy0: no floppy controllers found
[  186.909179] b43legacy-phy0 ERROR: Firmware file "b43legacy/ucode4.fw" not found or load failed.
[  186.909193] b43legacy-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware (version 3).
[  187.775370] cfg80211: World regulatory domain updated:
[  187.775374] cfg80211:  DFS Master region: unset
[  187.775375] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[  187.775378] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  187.775380] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  187.775381] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[  187.775383] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  187.775385] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[  187.844306] audit: type=1400 audit(1425922369.267:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=548 comm="apparmor_parser"
[  187.844312] audit: type=1400 audit(1425922369.267:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=548 comm="apparmor_parser"
[  187.844316] audit: type=1400 audit(1425922369.267:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=548 comm="apparmor_parser"
[  187.844915] audit: type=1400 audit(1425922369.267:5): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/sbin/dhclient" pid=549 comm="apparmor_parser"
[  187.844920] audit: type=1400 audit(1425922369.267:6): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=549 comm="apparmor_parser"
[  187.844925] audit: type=1400 audit(1425922369.267:7): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=549 comm="apparmor_parser"
[  188.275163] audit: type=1400 audit(1425922369.695:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/ntpd" pid=637 comm="apparmor_parser"
[  188.275502] audit: type=1400 audit(1425922369.695:9): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/ntpd" pid=636 comm="apparmor_parser"
[  188.999949] audit: type=1400 audit(1425922370.419:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=643 comm="apparmor_parser"
[  188.999956] audit: type=1400 audit(1425922370.419:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cupsd" pid=643 comm="apparmor_parser"
[  189.010227] init: cups main process (730) killed by HUP signal
[  189.010240] init: cups main process ended, respawning
[  190.032594] Bluetooth: Core ver 2.19
[  190.032614] NET: Registered protocol family 31
[  190.032615] Bluetooth: HCI device and connection manager initialized
[  190.032848] Bluetooth: HCI socket layer initialized
[  190.032851] Bluetooth: L2CAP socket layer initialized
[  190.032862] Bluetooth: SCO socket layer initialized
[  190.147686] Bluetooth: RFCOMM TTY layer initialized
[  190.147695] Bluetooth: RFCOMM socket layer initialized
[  190.147700] Bluetooth: RFCOMM ver 1.11
[  190.330844] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[  190.330848] Bluetooth: BNEP filters: protocol multicast
[  190.330854] Bluetooth: BNEP socket layer initialized
[  190.647348] init: failsafe main process (660) killed by TERM signal
[  194.204840] audit_printk_skb: 18 callbacks suppressed
[  194.204843] audit: type=1400 audit(1425922375.627:18): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince" pid=914 comm="apparmor_parser"
[  194.204850] audit: type=1400 audit(1425922375.627:19): apparmor="STATUS" operation="profile_load" profile="unconfined" name="sanitized_helper" pid=914 comm="apparmor_parser"
[  194.204854] audit: type=1400 audit(1425922375.627:20): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince-previewer" pid=914 comm="apparmor_parser"
[  194.204858] audit: type=1400 audit(1425922375.627:21): apparmor="STATUS" operation="profile_load" profile="unconfined" name="sanitized_helper" pid=914 comm="apparmor_parser"
[  194.204862] audit: type=1400 audit(1425922375.627:22): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince-thumbnailer" pid=914 comm="apparmor_parser"
[  194.204866] audit: type=1400 audit(1425922375.627:23): apparmor="STATUS" operation="profile_load" profile="unconfined" name="sanitized_helper" pid=914 comm="apparmor_parser"
[  194.569258] audit: type=1400 audit(1425922375.991:24): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/mission-control-5" pid=914 comm="apparmor_parser"
[  194.569266] audit: type=1400 audit(1425922375.991:25): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/telepathy/telepathy-*" pid=914 comm="apparmor_parser"
[  194.569270] audit: type=1400 audit(1425922375.991:26): apparmor="STATUS" operation="profile_load" profile="unconfined" name="pxgsettings" pid=914 comm="apparmor_parser"
[  194.569274] audit: type=1400 audit(1425922375.991:27): apparmor="STATUS" operation="profile_load" profile="unconfined" name="sanitized_helper" pid=914 comm="apparmor_parser"
[  196.014155] systemd-logind[1084]: New seat seat0.
[  196.050803] systemd-logind[1084]: Watching system buttons on /dev/input/event1 (Power Button)
[  196.050876] systemd-logind[1084]: Watching system buttons on /dev/input/event0 (Power Button)
[  196.282975] tg3 0000:02:00.0: irq 44 for MSI/MSI-X
[  196.293964] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[  196.421054] tg3 0000:02:00.0 eth0: Link is down
[  198.628650] init: modemmanager main process ended, respawning
[  198.649678] init: modemmanager main process ended, respawning
[  198.668510] init: modemmanager main process ended, respawning
[  198.693212] init: modemmanager main process ended, respawning
[  198.713641] init: modemmanager main process ended, respawning
[  198.731199] init: modemmanager main process ended, respawning
[  198.748435] init: modemmanager main process ended, respawning
[  198.767868] init: modemmanager main process ended, respawning
[  198.785918] init: modemmanager main process ended, respawning
[  198.804171] init: modemmanager main process ended, respawning
[  198.824759] init: modemmanager respawning too fast, stopped
[  200.421058] tg3 0000:02:00.0 eth0: Link is up at 1000 Mbps, full duplex
[  200.421062] tg3 0000:02:00.0 eth0: Flow control is on for TX and on for RX
[  200.421073] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[  202.782714] init: samba-ad-dc main process (1375) terminated with status 1
[  208.244712] systemd-logind[1084]: Failed to start unit user@1000.service: Unknown unit: user@1000.service
[  208.244719] systemd-logind[1084]: Failed to start user service: Unknown unit: user@1000.service
[  208.249198] systemd-logind[1084]: New session c1 of user randomconstructs.
[  208.249216] systemd-logind[1084]: Linked /tmp/.X11-unix/X0 to /run/user/1000/X11-display.
[  219.068120] audit_printk_skb: 24 callbacks suppressed
[  219.068123] audit: type=1400 audit(1425922399.821:36): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2234 comm="apparmor_parser"
[  219.068130] audit: type=1400 audit(1425922399.821:37): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2234 comm="apparmor_parser"
[  219.078376] audit: type=1400 audit(1425922399.829:38): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="third_party" pid=2234 comm="apparmor_parser"
[  329.849989] systemd-hostnamed[2891]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[  722.092113] usb 4-2: USB disconnect, device number 2
[  746.356029] usb 4-2: new full-speed USB device number 3 using uhci_hcd
[  746.541036] usb 4-2: New USB device found, idVendor=16c0, idProduct=0483
[  746.541041] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  746.541045] usb 4-2: Product: USB Serial
[  746.541049] usb 4-2: Manufacturer: Teensyduino
[  746.541052] usb 4-2: SerialNumber: 12345
[  746.544084] cdc_acm 4-2:1.0: This device cannot do calls on its own. It is not a modem.
[  746.544102] cdc_acm 4-2:1.0: ttyACM0: USB ACM device
[ 1045.532299] perf interrupt took too long (2506 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[ 1449.228064] usb 4-2: USB disconnect, device number 3
[ 1656.376031] usb 4-2: new full-speed USB device number 4 using uhci_hcd
[ 1656.562030] usb 4-2: New USB device found, idVendor=16c0, idProduct=0483
[ 1656.562035] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1656.562039] usb 4-2: Product: USB Serial
[ 1656.562042] usb 4-2: Manufacturer: Teensyduino
[ 1656.562046] usb 4-2: SerialNumber: 12345
[ 1656.565065] cdc_acm 4-2:1.0: This device cannot do calls on its own. It is not a modem.
[ 1656.565083] cdc_acm 4-2:1.0: ttyACM0: USB ACM device
[ 1907.584785] audit: type=1400 audit(1425924088.336:39): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=4124 comm="apparmor_parser"
[ 1907.584793] audit: type=1400 audit(1425924088.336:40): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=4124 comm="apparmor_parser"
[ 1907.592121] audit: type=1400 audit(1425924088.344:41): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="third_party" pid=4124 comm="apparmor_parser"
[ 1994.669680] sr 3:0:0:0: [sr0] Device not ready
[ 1994.669685] sr 3:0:0:0: [sr0]  
[ 1994.669689] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 1994.669692] sr 3:0:0:0: [sr0]  
[ 1994.669694] Sense Key : Not Ready [current] 
[ 1994.669699] sr 3:0:0:0: [sr0]  
[ 1994.669703] Add. Sense: Medium not present - tray closed
[ 1994.669707] sr 3:0:0:0: [sr0] CDB: 
[ 1994.669709] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 1994.669721] end_request: I/O error, dev sr0, sector 0
[ 1994.669725] Buffer I/O error on device sr0, logical block 0
[ 1994.669729] Buffer I/O error on device sr0, logical block 1
[ 1994.669732] Buffer I/O error on device sr0, logical block 2
[ 1994.669734] Buffer I/O error on device sr0, logical block 3
[ 1994.669737] Buffer I/O error on device sr0, logical block 4
[ 1994.669740] Buffer I/O error on device sr0, logical block 5
[ 1994.669743] Buffer I/O error on device sr0, logical block 6
[ 1994.669746] Buffer I/O error on device sr0, logical block 7
[ 1994.669754] Buffer I/O error on device sr0, logical block 8
[ 1994.669757] Buffer I/O error on device sr0, logical block 9
[ 1994.669766] sr 3:0:0:0: [sr0] unaligned transfer
[ 1994.669779] sr 3:0:0:0: [sr0] unaligned transfer
[ 1994.669788] sr 3:0:0:0: [sr0] unaligned transfer
[ 1994.669795] sr 3:0:0:0: [sr0] unaligned transfer
[ 1994.669803] sr 3:0:0:0: [sr0] unaligned transfer
[ 1994.669810] sr 3:0:0:0: [sr0] unaligned transfer
[ 1994.669818] sr 3:0:0:0: [sr0] unaligned transfer
[ 1994.669825] sr 3:0:0:0: [sr0] unaligned transfer
[ 2498.020108] usb 4-2: USB disconnect, device number 4
[ 2556.796052] usb 4-2: new full-speed USB device number 5 using uhci_hcd
[ 2556.982033] usb 4-2: New USB device found, idVendor=16c0, idProduct=0483
[ 2556.982039] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2556.982043] usb 4-2: Product: USB Serial
[ 2556.982046] usb 4-2: Manufacturer: Teensyduino
[ 2556.982049] usb 4-2: SerialNumber: 12345
[ 2556.985068] cdc_acm 4-2:1.0: This device cannot do calls on its own. It is not a modem.
[ 2556.985086] cdc_acm 4-2:1.0: ttyACM0: USB ACM device
[ 2831.937700] sr 3:0:0:0: [sr0] Device not ready
[ 2831.937706] sr 3:0:0:0: [sr0]  
[ 2831.937710] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2831.937713] sr 3:0:0:0: [sr0]  
[ 2831.937715] Sense Key : Not Ready [current] 
[ 2831.937720] sr 3:0:0:0: [sr0]  
[ 2831.937725] Add. Sense: Medium not present - tray closed
[ 2831.937728] sr 3:0:0:0: [sr0] CDB: 
[ 2831.937730] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2831.937742] end_request: I/O error, dev sr0, sector 0
[ 2831.937746] quiet_error: 22 callbacks suppressed
[ 2831.937749] Buffer I/O error on device sr0, logical block 0
[ 2831.937753] Buffer I/O error on device sr0, logical block 1
[ 2831.937755] Buffer I/O error on device sr0, logical block 2
[ 2831.937758] Buffer I/O error on device sr0, logical block 3
[ 2831.937761] Buffer I/O error on device sr0, logical block 4
[ 2831.937764] Buffer I/O error on device sr0, logical block 5
[ 2831.937766] Buffer I/O error on device sr0, logical block 6
[ 2831.937769] Buffer I/O error on device sr0, logical block 7
[ 2831.937777] Buffer I/O error on device sr0, logical block 8
[ 2831.937780] Buffer I/O error on device sr0, logical block 9
[ 2831.937790] sr 3:0:0:0: [sr0] unaligned transfer
[ 2831.937803] sr 3:0:0:0: [sr0] unaligned transfer
[ 2831.937811] sr 3:0:0:0: [sr0] unaligned transfer
[ 2831.937819] sr 3:0:0:0: [sr0] unaligned transfer
[ 2831.937826] sr 3:0:0:0: [sr0] unaligned transfer
[ 2831.937834] sr 3:0:0:0: [sr0] unaligned transfer
[ 2831.937841] sr 3:0:0:0: [sr0] unaligned transfer
[ 2831.937848] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745682] sr 3:0:0:0: [sr0] Device not ready
[ 2834.745687] sr 3:0:0:0: [sr0]  
[ 2834.745690] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2834.745694] sr 3:0:0:0: [sr0]  
[ 2834.745696] Sense Key : Not Ready [current] 
[ 2834.745701] sr 3:0:0:0: [sr0]  
[ 2834.745705] Add. Sense: Medium not present - tray closed
[ 2834.745709] sr 3:0:0:0: [sr0] CDB: 
[ 2834.745711] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2834.745723] end_request: I/O error, dev sr0, sector 0
[ 2834.745750] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745761] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745769] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745777] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745785] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745792] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745800] sr 3:0:0:0: [sr0] unaligned transfer
[ 2834.745807] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325681] sr 3:0:0:0: [sr0] Device not ready
[ 2836.325686] sr 3:0:0:0: [sr0]  
[ 2836.325690] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2836.325693] sr 3:0:0:0: [sr0]  
[ 2836.325695] Sense Key : Not Ready [current] 
[ 2836.325700] sr 3:0:0:0: [sr0]  
[ 2836.325705] Add. Sense: Medium not present - tray closed
[ 2836.325708] sr 3:0:0:0: [sr0] CDB: 
[ 2836.325710] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2836.325722] end_request: I/O error, dev sr0, sector 0
[ 2836.325749] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325760] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325768] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325776] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325784] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325791] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325798] sr 3:0:0:0: [sr0] unaligned transfer
[ 2836.325806] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169677] sr 3:0:0:0: [sr0] Device not ready
[ 2837.169683] sr 3:0:0:0: [sr0]  
[ 2837.169686] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2837.169690] sr 3:0:0:0: [sr0]  
[ 2837.169692] Sense Key : Not Ready [current] 
[ 2837.169697] sr 3:0:0:0: [sr0]  
[ 2837.169701] Add. Sense: Medium not present - tray closed
[ 2837.169705] sr 3:0:0:0: [sr0] CDB: 
[ 2837.169707] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2837.169719] end_request: I/O error, dev sr0, sector 0
[ 2837.169723] quiet_error: 86 callbacks suppressed
[ 2837.169725] Buffer I/O error on device sr0, logical block 0
[ 2837.169729] Buffer I/O error on device sr0, logical block 1
[ 2837.169732] Buffer I/O error on device sr0, logical block 2
[ 2837.169735] Buffer I/O error on device sr0, logical block 3
[ 2837.169737] Buffer I/O error on device sr0, logical block 4
[ 2837.169740] Buffer I/O error on device sr0, logical block 5
[ 2837.169743] Buffer I/O error on device sr0, logical block 6
[ 2837.169746] Buffer I/O error on device sr0, logical block 7
[ 2837.169753] Buffer I/O error on device sr0, logical block 8
[ 2837.169756] Buffer I/O error on device sr0, logical block 9
[ 2837.169765] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169778] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169786] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169794] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169801] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169809] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169816] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.169824] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353680] sr 3:0:0:0: [sr0] Device not ready
[ 2837.353685] sr 3:0:0:0: [sr0]  
[ 2837.353689] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2837.353692] sr 3:0:0:0: [sr0]  
[ 2837.353694] Sense Key : Not Ready [current] 
[ 2837.353699] sr 3:0:0:0: [sr0]  
[ 2837.353704] Add. Sense: Medium not present - tray closed
[ 2837.353707] sr 3:0:0:0: [sr0] CDB: 
[ 2837.353709] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2837.353721] end_request: I/O error, dev sr0, sector 0
[ 2837.353747] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353759] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353767] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353775] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353782] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353790] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353797] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.353805] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521678] sr 3:0:0:0: [sr0] Device not ready
[ 2837.521684] sr 3:0:0:0: [sr0]  
[ 2837.521687] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2837.521690] sr 3:0:0:0: [sr0]  
[ 2837.521692] Sense Key : Not Ready [current] 
[ 2837.521698] sr 3:0:0:0: [sr0]  
[ 2837.521702] Add. Sense: Medium not present - tray closed
[ 2837.521705] sr 3:0:0:0: [sr0] CDB: 
[ 2837.521708] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2837.521719] end_request: I/O error, dev sr0, sector 0
[ 2837.521746] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521758] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521766] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521774] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521781] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521789] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521796] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.521804] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629678] sr 3:0:0:0: [sr0] Device not ready
[ 2837.629683] sr 3:0:0:0: [sr0]  
[ 2837.629686] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2837.629690] sr 3:0:0:0: [sr0]  
[ 2837.629692] Sense Key : Not Ready [current] 
[ 2837.629697] sr 3:0:0:0: [sr0]  
[ 2837.629701] Add. Sense: Medium not present - tray closed
[ 2837.629705] sr 3:0:0:0: [sr0] CDB: 
[ 2837.629707] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2837.629719] end_request: I/O error, dev sr0, sector 0
[ 2837.629744] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629756] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629764] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629772] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629780] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629788] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629795] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.629803] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813679] sr 3:0:0:0: [sr0] Device not ready
[ 2837.813685] sr 3:0:0:0: [sr0]  
[ 2837.813688] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2837.813691] sr 3:0:0:0: [sr0]  
[ 2837.813694] Sense Key : Not Ready [current] 
[ 2837.813699] sr 3:0:0:0: [sr0]  
[ 2837.813703] Add. Sense: Medium not present - tray closed
[ 2837.813706] sr 3:0:0:0: [sr0] CDB: 
[ 2837.813709] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2837.813721] end_request: I/O error, dev sr0, sector 0
[ 2837.813746] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813758] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813766] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813774] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813781] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813789] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813796] sr 3:0:0:0: [sr0] unaligned transfer
[ 2837.813804] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837680] sr 3:0:0:0: [sr0] Device not ready
[ 2842.837686] sr 3:0:0:0: [sr0]  
[ 2842.837689] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2842.837692] sr 3:0:0:0: [sr0]  
[ 2842.837694] Sense Key : Not Ready [current] 
[ 2842.837699] sr 3:0:0:0: [sr0]  
[ 2842.837704] Add. Sense: Medium not present - tray closed
[ 2842.837707] sr 3:0:0:0: [sr0] CDB: 
[ 2842.837709] Read(10): 28 00 00 00 00 00 00 00 08 00
[ 2842.837721] end_request: I/O error, dev sr0, sector 0
[ 2842.837725] quiet_error: 150 callbacks suppressed
[ 2842.837728] Buffer I/O error on device sr0, logical block 0
[ 2842.837732] Buffer I/O error on device sr0, logical block 1
[ 2842.837735] Buffer I/O error on device sr0, logical block 2
[ 2842.837738] Buffer I/O error on device sr0, logical block 3
[ 2842.837741] Buffer I/O error on device sr0, logical block 4
[ 2842.837743] Buffer I/O error on device sr0, logical block 5
[ 2842.837746] Buffer I/O error on device sr0, logical block 6
[ 2842.837749] Buffer I/O error on device sr0, logical block 7
[ 2842.837757] Buffer I/O error on device sr0, logical block 8
[ 2842.837760] Buffer I/O error on device sr0, logical block 9
[ 2842.837768] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837781] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837789] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837797] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837804] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837812] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837819] sr 3:0:0:0: [sr0] unaligned transfer
[ 2842.837826] sr 3:0:0:0: [sr0] unaligned transfer
[ 3990.236067] usb 4-2: USB disconnect, device number 5
[ 5419.944252] systemd-hostnamed[8578]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[ 6010.290202] systemd-hostnamed[8803]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[ 6678.957020] systemd-hostnamed[8988]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[10331.184115] systemd-hostnamed[11496]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!
[14873.464036] usb 5-1: new full-speed USB device number 3 using uhci_hcd
[14873.636799] usb 5-1: New USB device found, idVendor=16c0, idProduct=0483
[14873.636805] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[14873.636809] usb 5-1: Product: USB Serial
[14873.636812] usb 5-1: Manufacturer: Teensyduino
[14873.636815] usb 5-1: SerialNumber: 12345
[14873.639851] cdc_acm 5-1:1.0: This device cannot do calls on its own. It is not a modem.
[14873.639895] cdc_acm 5-1:1.0: ttyACM0: USB ACM device
randomconstructs@randomconstructs-OptiPlex-380:~$ usb 5-1
No command 'usb' found, did you mean:
 Command 'jsb' from package 'jsonbot' (universe)
 Command 'sb' from package 'lrzsz' (universe)
usb: command not found