I see so many suggestions from blog related to bitlocker encryption dual boot ( Win 10 + ubuntu ) . But most of the cases, there is no success.
May I know how to proceed with working dual boot encryption enabled.
Kindly let me know the step by step procedure, how to achieve this.
Thanks Jay
I'm trying to automate ubuntu 18.04 LTS Desktop installation using seed file, but unfortunately I'm unable to proceed futher after patitioning step while installation, as the window got hang.
Even I copy - paste entire "https://help.ubuntu.com/lts/installation-guide/example-preseed.txt" still the same problem
Below is the current configuration
d-i debian-installer/locale string en_US
d-i passwd/user-fullname string test host
d-i passwd/username string test
d-i passwd/user-password password ubuntutest
d-i passwd/user-password-again password ubuntutest
d-i partman-auto/method string lvm
d-i partman-lvm/device_remove_lvm boolean true
d-i partman-lvm/confirm boolean true
d-i partman-lvm/confirm_nooverwrite boolean true
tasksel tasksel/first multiselect ubuntu-desktop
d-i pkgsel/include string ssh vim build-essential
d-i pkgsel/upgrade select none
I just mention the seed files in the boot params as auto url=http://192.168.56.101/test.cfg
Here I'm testing on Virtual box.
Please suggest
Env:- 16.04.4 LTS (Xenial Xerus) 4.13.0-36-generic
I'm following this article (https://wiki.ubuntu.com/Enterprise/Authentication/KerberosServices ) for setting up kerberised ssh. Tried with domain instead of IP, still no luck..
Also I want to enable these kerberised users needs have sudo access on the machine, so that every kerberised users will get admin prvileges. This can be achieved by adding entry in sudoers file.
For enabling kerberized ssh its not working.
Below is the client configuration.
$grep -i ad.ny /etc/krb5.conf
kdc = ad.test.edu
admin_server = ad.test.edu
I'm able to get the kerberos ticket without any issues
$kinit [email protected]
Password for [email protected]:
Below is the ticket details
$klist
Ticket cache: FILE:/tmp/krb5cc_1000
Default principal: [email protected]
Valid starting Expires Service principal
03/19/2019 16:36:05 03/20/2019 02:36:05
krbtgt/[email protected]
Below is the ssh configuration
$ grep -v ^# /etc/ssh/sshd_config | grep -v -e '^$'
Port 22
Protocol 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
UsePrivilegeSeparation yes
KeyRegenerationInterval 3600
ServerKeyBits 1024
SyslogFacility AUTH
LogLevel INFO
LoginGraceTime 120
PermitRootLogin prohibit-password
StrictModes yes
RSAAuthentication yes
PubkeyAuthentication yes
IgnoreRhosts yes
RhostsRSAAuthentication no
HostbasedAuthentication no
PermitEmptyPasswords no
ChallengeResponseAuthentication no
X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
UsePAM yes
KerberosAuthentication yes
KerberosTicketCleanup yes
GSSAPIAuthentication yes
GSSAPICleanupCredentials yes
Below is the ssh verbose output
$ssh -K -v test/[email protected]
<< .snip>
..
<snip>
debug1: Authentications that can continue: publickey,gssapi-
keyex,gssapi-with-mic,password
debug1: Trying private key: /Users/test/.ssh/id_dsa
debug1: Trying private key: /Users/test/.ssh/id_ecdsa
debug1: Trying private key: /Users/test/.ssh/id_ed25519
debug1: Trying private key: /Users/test/.ssh/id_xmss
debug1: Next authentication method: password
test/[email protected]'s password:
This is freshly installed machine running as dual boot over Win 10. For every reboot machine hangs for 15 secs as the plymouth service unable to start, due to some reasons.
ENv:-
Manufacturer: Dell Inc.
Product Name: Precision 5820 Tower
Ubuntu 18.04
4.15.0-29-generic
vendor : NVIDIA Corporation
model : GP104GL [Quadro P4000]
Below is the systemd-analyse output snippet
sudo systemd-analyze blame
14.405s plymouth-quit-wait.service
8.843s dev-sdb4.device
8.049s NetworkManager-wait-online.service
5.305s bolt.service
4.889s snapd.service
4.243s udisks2.service
4.092s grub-common.service
3.806s networking.service
3.780s ModemManager.service
3.325s dev-loop10.device
3.295s apparmor.service
3.190s dev-loop13.device
3.162s accounts-daemon.service
Here is the few snippet of boot logs
Feb 18 11:37:42 polkitd[876]: started daemon version 0.105 using
authority implementation `local' version `0.105'
Feb 18 11:37:42 dbus-daemon[820]: [system] Successfully activated service 'org.freedesktop.PolicyKit1'
Feb 18 11:37:42 systemd[1]: Started Authorization Manager.
Feb 18 11:37:42 accounts-daemon[801]: started daemon version 0.6.45
Feb 18 11:37:42 systemd[1]: Started Accounts Service.
Feb 18 11:37:42 systemd[1]: Received SIGRTMIN+20 from PID 394 (plymouthd).
Here is the delay
Feb 18 11:37:57 nvidia-persistenced: The daemon no longer has
permission to remove its runtime data directory /var/run/nvidia-
persistenced
Feb 18 11:37:57 nvidia-persistenced: Shutdown (1206)
Feb 18 11:37:57 systemd[1]: Stopped NVIDIA Persistence Daemon.
Feb 18 11:37:58 gdm3: Child process -1088 was already dead.
Feb 18 11:37:58 systemd[1]: Stopping User Manager for UID 121...
Feb 18 11:37:58 systemd[1]: Received SIGRTMIN+21 from PID 394 (plymouthd)
sudo systemctl status plymouth-quit-wait.service
● plymouth-quit-wait.service - Hold until boot process finishes up
Loaded: loaded (/lib/systemd/system/plymouth-quit-wait.service; static; vendor preset: enabled)
Active: inactive (dead) since Mon 2019-02-18 11:37:58 +04; 7min ago
Main PID: 943 (code=exited, status=0/SUCCESS)
Feb 18 11:37:43 systemd[1]: Starting Hold until boot
process finishes up...
Feb 18 11:37:58 systemd[1]: Started Hold until boot
process finishes up.
Graphics driver installed latest version - 415 from ppa repository
ii nvidia-compute-utils-415 415.27-0ubuntu0~gpu18.04.2 amd64 NVIDIA compute utilities
ii nvidia-dkms-415 415.27-0ubuntu0~gpu18.04.2 amd64 NVIDIA DKMS package
ii nvidia-driver-415 415.27-0ubuntu0~gpu18.04.2 amd64 NVIDIA driver metapackage
ii nvidia-kernel-common-415 415.27-0ubuntu0~gpu18.04.2 amd64 Shared files used with the kernel module
ii nvidia-kernel-source-415 415.27-0ubuntu0~gpu18.04.2 amd64 NVIDIA kernel source package
ii nvidia-prime 0.8.8.2 all Tools to enable NVIDIA's Prime
ii nvidia-settings 415.27-0ubuntu0~gpu18.04.1 amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-utils-415 415.27-0ubuntu0~gpu18.04.2 amd64 NVIDIA driver support binaries
ii xserver-xorg-video-nvidia-415 415.27-0ubuntu0~gpu18.04.2 amd64 NVIDIA binary Xorg driver
Can you let me know why there is a delay happening due to plymount-quit service? Please let me know is there any other info you would require for troubleshoot?
Is it related to hardware / software /grahics driver issue?
Thanks