Posts

maas - Document Update Required about the Openstack Autopilot Installation - Ask Ubuntu

i installing autopilot openstack referring guideline on offical cloud website: current issue stucked @ juju bootstrap when excute "sudo openstack-install" @ step 6 "launch openstack autopilot", please see attached image: enter image description here fact step skip @ step 3 when installing maas, mentioned on guide [go “networks” tab , each of networks auto-created, click “edit network” add default gateway , dns server details"],but acutally, not find "networks" tab, instead, have "subnets" tab instead, skip step. enter image description here find installation log [{"network": ["node must configured use network"]}] in ~/.cloud-install/commands.log. looking forward reply, in advance. i appricated if cc reply email juan_qiu@tongji.edu.cn.

mount - Graphical umount application - Ask Ubuntu

is there application graphically view partitions mounted , able unmount them gui? on windows -> computer -> eject. download gparted : · ubuntu software · run command sudo apt-get install gparted

How can I remove a Bluetooth device? - Ask Ubuntu

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i remove bluetooth device shown in indicator menu not appear in bluetooth settings menu. screenshots after clicking on bluetooth settings shown in second image, menu title bluetooth select item want remove. click - button. the miscale device see in first image not connected. can remove devices connected (paired) bluetooth. actual paired devices shows in bluetooth settings list.

drivers - Can't make nvidia work in fresh dual boot install - Ask Ubuntu

i'm trying find out how make nvidia work. instalation successfull, , after reboot can access tty. machine specifications: nvidia geforce gtx 1060 gpu (6gb dedicated) cpu: intel® core™ i7 skylake - 6700hq 2.6 ghz, 6mb cache (3.50 ghz com max turbo) memory: 32gb memória ddr4 (2133 mhz) hard disk (hdd), ssd ou sshd: sshd 1 tb com 8gb ssd satae m.2: satae m.2 - 480gb sata iii - 6gb/s tela (lcd): 15.6" fullhd (1920 x 1080p) 16:9 led-backlit - (matte) i have tried make installation of seveveral nvidia drivers versions, latter 307 version, nothing happens... i'm using 16.04.01 release. preliminary step - removing old drivers: sudo apt purge nvidia* sudo reboot now adding graphics drivers ppa (additional software source providing newer drivers versions): sudo add-apt-repository ppa:graphics-drivers/ppa sudo apt update installing recommended driver: sudo apt install nvidia-370 sudo reboot now

mount - How can I grant read-only acces to my harddrive to guest user? - Ask Ubuntu

this question has answer here: how can grant guest accounts read (or read-write) permission on folder outside home? 1 answer i want allow 'guest' user read files in harddrive (mounted during startup @ '/mnt/blahblahblah' ) . don't want them write it.i'm on xubuntu 16.04. how can it? guest sessions locked down using apparmor, uses long list of special permissions keep guest users touching anything. these accessed etc/apparmor.d/lightdm-guest-session . on machine, file looks this: # profile restricting lightdm guest session #include <tunables/global> /usr/lib/lightdm/lightdm-guest-session { # applications confined via main abstraction #include <abstractions/lightdm> # chromium-browser needs special confinement due sandboxing #include <abstractions/lightdm_chromium-browser> } opening "main abstract...

networking - Qualcomm Atheros Device [168c:0042] (rev 30) ubuntu 16.04 - Ask Ubuntu

i have lenovo i310 running ubuntu 16.04 (kernel 4.4). wifi works if follow odd procedure: switch on laptop press few seconds power button switch on laptop again the hardware switch on. wifi enabled in bios. differences noticed far. command: lspci -nnv |grep ualcom when wi-fi not working: 02:00.0 ethernet controller [0200]: qualcomm atheros device [168c:abcd] (rev 01) when wi-fi working: 02:00.0 network controller [0280]: qualcomm atheros device [168c:0042] (rev 30) command: rfkill list . when wi-fi not working: 0: ideapad_wlan: wireless lan soft blocked: no hard blocked: no 1: ideapad_bluetooth: bluetooth soft blocked: yes hard blocked: no when wi-fi working: 0: ideapad_wlan: wireless lan soft blocked: no hard blocked: no 1: ideapad_bluetooth: bluetooth soft blocked: yes hard blocked: no 2: hci0: bluetooth soft blocked: yes hard blocked: no 3: phy0: wireless lan soft blocked: no hard blocked: no edit 1: command: lsmo...

apt - Not able to install gcc and g++ - Ask Ubuntu

i have rm-r files starting gcc , g++ /usr/bin .. now when trying reinstall using sudo apt-get install gcc getting following error reading package lists... done building dependency tree reading state information... done gcc newest version (4:5.3.1-1ubuntu1). following packages automatically installed , no longer required: libgcrypt20:i386 libsystemd0:i386 linux-headers-4.4.0-38 linux-headers-4.4.0-38-generic linux-image-4.4.0-38-generic linux-image-extra-4.4.0-38-generic use 'sudo apt autoremove' remove them. 0 upgraded, 0 newly installed, 0 remove , 0 not upgraded. 1 not installed or removed. after operation, 0 b of additional disk space used. want continue? [y/n] y setting gcc (4:5.3.1-1ubuntu1) ... update-alternatives: error: alternative path /usr/bin/gcc doesn't exist dpkg: error processing package gcc (--configure): subprocess installed post-installation script returned error exit status 2 errors encountered while processing: gcc e: sub-process ...