Slightly changed the sequence: I know that. I remember I did several boots and on each, just after closing/saving gksudo gedit /etc/default/grub, ctrl+alt+t then up arrow <change>(to recall sudo update-grub from ~/.bash_history - not waiting the terminal was opened) then enter</change>, then reboot to test if the bootdelay option was enough or too long until I find the exact amount of seconds needed. As I experienced this several times, I thought it was a story of responsiveness of the system and decided to fill this bug. I'll try to reproduce. Feel free to set back to hidden/security issue.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1527850 Title: sudo won't ask password Status in linux package in Ubuntu: Incomplete Bug description: Tweaking my :etc/default/grub to find the shortest possible rootdelay=value option I found sudo didn't asked me for password: ^[[Ame@pcgksudo gedit /etc/default/grub (gedit:2484): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files (gedit:2484): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files me@pc:~$ sudo update-grub Création du fichier de configuration GRUB… Image Linux trouvée : /boot/vmlinuz-3.13.0-74-lowlatency Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-74-lowlatency Image Linux trouvée : /boot/vmlinuz-3.13.0-74-generic Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-74-generic Image Linux trouvée : /boot/vmlinuz-3.13.0-73-lowlatency Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-73-lowlatency Image Linux trouvée : /boot/vmlinuz-3.13.0-73-generic Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-73-generic Found memtest86+ image: /boot/memtest86+.elf Found memtest86+ image: /boot/memtest86+.bin fait (done) me@pc:~$ cat /boot/grub/grub.cfg |grep dela linux /boot/vmlinuz-3.13.0-74-lowlatency root=UUID=09ecdff0-44fe-437e-8063-deabc6feb00e ro bootdelay=13 linux /boot/vmlinuz-3.13.0-74-generic root=UUID=09ecdff0-44fe-437e-8063-deabc6feb00e ro bootdelay=13 linux /boot/vmlinuz-3.13.0-73-lowlatency root=UUID=09ecdff0-44fe-437e-8063-deabc6feb00e ro bootdelay=13 linux /boot/vmlinuz-3.13.0-73-generic root=UUID=09ecdff0-44fe-437e-8063-deabc6feb00e ro bootdelay=13 me@pc:~$ cat /etc/issue Ubuntu 14.04.3 LTS \n \l me@pc:~$ uname -a Linux nux 3.13.0-74-generic #118-Ubuntu SMP Thu Dec 17 22:52:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux me@pc:~$ Reissuing the command in the same terminal after writing this ~bug~, pw still not asked: me@pc:~$ sudo update-grub Création du fichier de configuration GRUB… Image Linux trouvée : /boot/vmlinuz-3.13.0-74-lowlatency Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-74-lowlatency Image Linux trouvée : /boot/vmlinuz-3.13.0-74-generic Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-74-generic Image Linux trouvée : /boot/vmlinuz-3.13.0-73-lowlatency Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-73-lowlatency Image Linux trouvée : /boot/vmlinuz-3.13.0-73-generic Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-73-generic Found memtest86+ image: /boot/memtest86+.elf Found memtest86+ image: /boot/memtest86+.bin fait (done) me@pc:~$ Closing the terminal then reissuing the command in a new one, password is asked as intended: me@pc:~$ sudo update-grub [sudo] password for me: Création du fichier de configuration GRUB… Image Linux trouvée : /boot/vmlinuz-3.13.0-74-lowlatency Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-74-lowlatency Image Linux trouvée : /boot/vmlinuz-3.13.0-74-generic Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-74-generic Image Linux trouvée : /boot/vmlinuz-3.13.0-73-lowlatency Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-73-lowlatency Image Linux trouvée : /boot/vmlinuz-3.13.0-73-generic Image mémoire initiale trouvée : /boot/initrd.img-3.13.0-73-generic Found memtest86+ image: /boot/memtest86+.elf Found memtest86+ image: /boot/memtest86+.bin fait me@pc:~$ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1527850/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp