Setelah instalasi Ubuntu 15.04 baru, startup meminta kata sandi meskipun tidak ada enkripsi disk yang diatur

Saya memasang SSD baru ke laptop saya dan melakukan instalasi baru Ubuntu 15.04, tanpa enkripsi sistem yang digunakan (hanya enkripsi direktori rumah). Namun, masih meminta saya untuk memasukkan kata sandi saat boot (saya cukup tekan Enter untuk melewati):

Selain itu, setelah melakukan instalasi baru, memutakhirkan paket juga meminta saya kata sandi beberapa kali, yang Enterjuga memotong. Programnya adalah "systemd-tty-ask-password-agent", jadi masalahnya sepertinya ada pada systemd.

Pesan yang relevan di terminal:

Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none! 
update-initramfs: deferring update (trigger activated)

Broadcast message from root@username-XPS-13-9343 (Thu 2015-04-30 22:06:22 EDT):

Password entry required for 'Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none!' (PID 4027).
Please enter password with the systemd-tty-ask-password-agent tool!

Output penuh dari menjalankan pembaruan:

+username@username-XPS-13-9343:~$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
  ca-certificates firefox gir1.2-gudev-1.0 libcurl3 libcurl3-gnutls
  libgudev-1.0-0 libnm-glib-vpn1 libnm-glib4 libnm-util2 liboxideqt-qmlplugin
  liboxideqtcore0 liboxideqtquick0 libpam-systemd libsystemd0 libudev1
  network-manager oxideqt-codecs systemd systemd-sysv tzdata udev
  usb-creator-common usb-creator-gtk wpasupplicant
24 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 47.9 MB/73.2 MB of archives.
After this operation, 2,989 kB of additional disk space will be used.
Do you want to continue? [Y/n] Y
Get:1 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libudev1 amd64 219-7ubuntu4 [40.8 kB]
Get:2 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main udev amd64 219-7ubuntu4 [929 kB]
Get:3 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main systemd-sysv amd64 219-7ubuntu4 [14.0 kB]
Get:4 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libpam-systemd amd64 219-7ubuntu4 [108 kB]
Get:5 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libsystemd0 amd64 219-7ubuntu4 [73.8 kB]
Get:6 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main systemd amd64 219-7ubuntu4 [3,531 kB]
Get:7 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libcurl3-gnutls amd64 7.38.0-3ubuntu2.2 [172 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libcurl3 amd64 7.38.0-3ubuntu2.2 [180 kB]
Get:9 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libgudev-1.0-0 amd64 1:219-7ubuntu4 [14.4 kB]
Get:10 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libnm-util2 amd64 0.9.10.0-4ubuntu15.1 [134 kB]
Get:11 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libnm-glib-vpn1 amd64 0.9.10.0-4ubuntu15.1 [14.4 kB]
Get:12 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main libnm-glib4 amd64 0.9.10.0-4ubuntu15.1 [84.7 kB]
Get:13 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main tzdata all 2015d-0ubuntu0.15.04 [178 kB]
Get:14 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main ca-certificates all 20141019ubuntu0.15.04.1 [191 kB]
Get:15 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main firefox amd64 37.0.2+build1-0ubuntu0.15.04.1 [40.1 MB]
Get:16 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main gir1.2-gudev-1.0 amd64 1:219-7ubuntu4 [5,564 B]
Get:17 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main wpasupplicant amd64 2.1-0ubuntu7.1 [768 kB]
Get:18 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main network-manager amd64 0.9.10.0-4ubuntu15.1 [754 kB]
Get:19 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main usb-creator-gtk amd64 0.2.67ubuntu0.1 [23.4 kB]
Get:20 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main usb-creator-common amd64 0.2.67ubuntu0.1 [23.7 kB]
Get:21 http://us.archive.ubuntu.com/ubuntu/ vivid-updates/main oxideqt-codecs amd64 1.6.5-0ubuntu0.15.04.1 [533 kB]
Fetched 47.9 MB in 1min 18s (613 kB/s)                                         
Preconfiguring packages ...
(Reading database ... 171469 files and directories currently installed.)
Preparing to unpack .../libudev1_219-7ubuntu4_amd64.deb ...
Unpacking libudev1:amd64 (219-7ubuntu4) over (219-7ubuntu3) ...
Setting up libudev1:amd64 (219-7ubuntu4) ...
Processing triggers for libc-bin (2.21-0ubuntu4) ...
(Reading database ... 171469 files and directories currently installed.)
Preparing to unpack .../udev_219-7ubuntu4_amd64.deb ...
Unpacking udev (219-7ubuntu4) over (219-7ubuntu3) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for ureadahead (0.100.0-19) ...
ureadahead will be reprofiled on next reboot
Processing triggers for systemd (219-7ubuntu3) ...
Setting up udev (219-7ubuntu4) ...
Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none! 
update-initramfs: deferring update (trigger activated)

Broadcast message from root@username-XPS-13-9343 (Thu 2015-04-30 22:06:22 EDT):

Password entry required for 'Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none!' (PID 4027).
Please enter password with the systemd-tty-ask-password-agent tool!

Processing triggers for initramfs-tools (0.103ubuntu15) ...
update-initramfs: Generating /boot/initrd.img-3.19.0-15-generic
(Reading database ... 171469 files and directories currently installed.)
Preparing to unpack .../systemd-sysv_219-7ubuntu4_amd64.deb ...
Unpacking systemd-sysv (219-7ubuntu4) over (219-7ubuntu3) ...
Processing triggers for man-db (2.7.0.2-5) ...
Setting up systemd-sysv (219-7ubuntu4) ...
(Reading database ... 171469 files and directories currently installed.)
Preparing to unpack .../libpam-systemd_219-7ubuntu4_amd64.deb ...
Unpacking libpam-systemd:amd64 (219-7ubuntu4) over (219-7ubuntu3) ...
Preparing to unpack .../libsystemd0_219-7ubuntu4_amd64.deb ...
Unpacking libsystemd0:amd64 (219-7ubuntu4) over (219-7ubuntu3) ...
Processing triggers for man-db (2.7.0.2-5) ...
Setting up libsystemd0:amd64 (219-7ubuntu4) ...
Processing triggers for libc-bin (2.21-0ubuntu4) ...
(Reading database ... 171469 files and directories currently installed.)
Preparing to unpack .../systemd_219-7ubuntu4_amd64.deb ...
Unpacking systemd (219-7ubuntu4) over (219-7ubuntu3) ...
Processing triggers for dbus (1.8.12-1ubuntu5) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for ureadahead (0.100.0-19) ...
Setting up systemd (219-7ubuntu4) ...
Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none! 
(Reading database ... 171469 files and directories currently installed.)
Preparing to unpack .../libcurl3-gnutls_7.38.0-3ubuntu2.2_amd64.deb ...
Unpacking libcurl3-gnutls:amd64 (7.38.0-3ubuntu2.2) over (7.38.0-3ubuntu2) ...
Preparing to unpack .../libcurl3_7.38.0-3ubuntu2.2_amd64.deb ...
Unpacking libcurl3:amd64 (7.38.0-3ubuntu2.2) over (7.38.0-3ubuntu2) ...
Preparing to unpack .../libgudev-1.0-0_1%3a219-7ubuntu4_amd64.deb ...
Unpacking libgudev-1.0-0:amd64 (1:219-7ubuntu4) over (1:219-7ubuntu3) ...
Preparing to unpack .../libnm-util2_0.9.10.0-4ubuntu15.1_amd64.deb ...
Unpacking libnm-util2:amd64 (0.9.10.0-4ubuntu15.1) over (0.9.10.0-4ubuntu15) ...
Preparing to unpack .../libnm-glib-vpn1_0.9.10.0-4ubuntu15.1_amd64.deb ...
Unpacking libnm-glib-vpn1:amd64 (0.9.10.0-4ubuntu15.1) over (0.9.10.0-4ubuntu15) ...
Preparing to unpack .../libnm-glib4_0.9.10.0-4ubuntu15.1_amd64.deb ...
Unpacking libnm-glib4:amd64 (0.9.10.0-4ubuntu15.1) over (0.9.10.0-4ubuntu15) ...
Preparing to unpack .../tzdata_2015d-0ubuntu0.15.04_all.deb ...
Unpacking tzdata (2015d-0ubuntu0.15.04) over (2015c-1) ...
Setting up tzdata (2015d-0ubuntu0.15.04) ...

Current default time zone: 'America/New_York'
Local time is now:      Thu Apr 30 22:20:06 EDT 2015.
Universal Time is now:  Fri May  1 02:20:06 UTC 2015.
Run 'dpkg-reconfigure tzdata' if you wish to change it.

(Reading database ... 171469 files and directories currently installed.)
Preparing to unpack .../ca-certificates_20141019ubuntu0.15.04.1_all.deb ...
Unpacking ca-certificates (20141019ubuntu0.15.04.1) over (20141019) ...
Preparing to unpack .../firefox_37.0.2+build1-0ubuntu0.15.04.1_amd64.deb ...
Unpacking firefox (37.0.2+build1-0ubuntu0.15.04.1) over (37.0+build2-0ubuntu1) ...
Preparing to unpack .../gir1.2-gudev-1.0_1%3a219-7ubuntu4_amd64.deb ...
Unpacking gir1.2-gudev-1.0 (1:219-7ubuntu4) over (1:219-7ubuntu3) ...
Preparing to unpack .../wpasupplicant_2.1-0ubuntu7.1_amd64.deb ...
Unpacking wpasupplicant (2.1-0ubuntu7.1) over (2.1-0ubuntu7) ...
Preparing to unpack .../network-manager_0.9.10.0-4ubuntu15.1_amd64.deb ...
Unpacking network-manager (0.9.10.0-4ubuntu15.1) over (0.9.10.0-4ubuntu15) ...

Broadcast message from root@username-XPS-13-9343 (Thu 2015-04-30 22:20:19 EDT):

Password entry required for 'Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none!' (PID 15391).
Please enter password with the systemd-tty-ask-password-agent tool!

Preparing to unpack .../usb-creator-gtk_0.2.67ubuntu0.1_amd64.deb ...
Unpacking usb-creator-gtk (0.2.67ubuntu0.1) over (0.2.67) ...
Preparing to unpack .../usb-creator-common_0.2.67ubuntu0.1_amd64.deb ...
Unpacking usb-creator-common (0.2.67ubuntu0.1) over (0.2.67) ...
Preparing to unpack .../liboxideqt-qmlplugin_1.6.5-0ubuntu0.15.04.1_amd64.deb ...
Unpacking liboxideqt-qmlplugin:amd64 (1.6.5-0ubuntu0.15.04.1) over (1.5.5-0ubuntu1) ...
Preparing to unpack .../liboxideqtquick0_1.6.5-0ubuntu0.15.04.1_amd64.deb ...
Unpacking liboxideqtquick0:amd64 (1.6.5-0ubuntu0.15.04.1) over (1.5.5-0ubuntu1) ...
Preparing to unpack .../liboxideqtcore0_1.6.5-0ubuntu0.15.04.1_amd64.deb ...
Unpacking liboxideqtcore0:amd64 (1.6.5-0ubuntu0.15.04.1) over (1.5.5-0ubuntu1) ...
Preparing to unpack .../oxideqt-codecs_1.6.5-0ubuntu0.15.04.1_amd64.deb ...
Unpacking oxideqt-codecs:amd64 (1.6.5-0ubuntu0.15.04.1) over (1.5.5-0ubuntu1) ...
Processing triggers for man-db (2.7.0.2-5) ...
Processing triggers for gnome-menus (3.10.1-0ubuntu5) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu3) ...
Processing triggers for bamfdaemon (0.5.1+15.04.20150202-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for mime-support (3.58ubuntu1) ...
Processing triggers for dbus (1.8.12-1ubuntu5) ...
Processing triggers for systemd (219-7ubuntu4) ...
Processing triggers for ureadahead (0.100.0-19) ...
Processing triggers for hicolor-icon-theme (0.14-0ubuntu1) ...
Setting up libpam-systemd:amd64 (219-7ubuntu4) ...
Setting up libcurl3-gnutls:amd64 (7.38.0-3ubuntu2.2) ...
Setting up libcurl3:amd64 (7.38.0-3ubuntu2.2) ...
Setting up libgudev-1.0-0:amd64 (1:219-7ubuntu4) ...
Setting up libnm-util2:amd64 (0.9.10.0-4ubuntu15.1) ...
Setting up libnm-glib-vpn1:amd64 (0.9.10.0-4ubuntu15.1) ...
Setting up libnm-glib4:amd64 (0.9.10.0-4ubuntu15.1) ...
Setting up ca-certificates (20141019ubuntu0.15.04.1) ...
Setting up firefox (37.0.2+build1-0ubuntu0.15.04.1) ...
Please restart all running instances of firefox, or you will experience problems.
Setting up gir1.2-gudev-1.0 (1:219-7ubuntu4) ...
Setting up wpasupplicant (2.1-0ubuntu7.1) ...
Setting up network-manager (0.9.10.0-4ubuntu15.1) ...
Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none! 

Broadcast message from root@username-XPS-13-9343 (Thu 2015-04-30 22:20:47 EDT):

Password entry required for 'Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none!' (PID 19822).
Please enter password with the systemd-tty-ask-password-agent tool!

Please enter passphrase for disk Crucial_CT250MX200SSD4 (cryptswap1) on none! 
Setting up usb-creator-common (0.2.67ubuntu0.1) ...
Setting up usb-creator-gtk (0.2.67ubuntu0.1) ...
Setting up oxideqt-codecs:amd64 (1.6.5-0ubuntu0.15.04.1) ...
Setting up liboxideqtcore0:amd64 (1.6.5-0ubuntu0.15.04.1) ...
Setting up liboxideqtquick0:amd64 (1.6.5-0ubuntu0.15.04.1) ...
Setting up liboxideqt-qmlplugin:amd64 (1.6.5-0ubuntu0.15.04.1) ...
Processing triggers for libc-bin (2.21-0ubuntu4) ...
Processing triggers for ca-certificates (20141019ubuntu0.15.04.1) ...
Updating certificates in /etc/ssl/certs... 0 added, 0 removed; done.
Running hooks in /etc/ca-certificates/update.d....done.
username@username-XPS-13-9343:~$ 

Seseorang memposting masalah serupa di sini , tapi itu sepertinya terkait dengan OpenVPN, yang tidak saya gunakan. Saya tidak punya /etc/default/openvpnfile itu.

Bagaimana cara memperbaiki masalah ini?

Ini masalah yang diketahui, harus segera diperbaiki:

https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/1447282

Singkatnya: Dalam keadaan tertentu, systemd tidak mengenali swap yang dienkripsi dengan benar dan meminta kata sandi yang belum pernah ditetapkan. Swap selalu dienkripsi jika enkripsi untuk rumah diaktifkan karena data pengguna mungkin diganti dan kemudian menjadi tidak terenkripsi.

Ini bukan solusi yang tepat dan seperti yang dikatakan Christian dalam komentar di bawah, itu akan membuatnya kurang aman. Tetapi jika enkripsi bukan prioritas untuk Anda, Anda bisa menggunakan solusi ini.

Pertama temukan partisi yang memiliki swap

sudo fdisk -l
[sudo] password for kempe: 

Disk /dev/sda: 233,8 GiB, 251000193024 bytes, 490234752 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: B59D4149-AC8E-4B71-B51F-8926B2E82C14

Device         Start       End   Sectors   Size Type
/dev/sda1       2048    409599    407552   199M EFI System
/dev/sda2     409640 253319775 252910136 120,6G Apple HFS/HFS+
/dev/sda3  253321216 269320191  15998976   7,6G Linux swap
/dev/sda4  269320192 490233855 220913664 105,3G Linux filesystem

Dalam kasus saya, swap diaktifkan /dev/sda3

kemudian matikan swap

sudo swapoff -a

nonaktifkan cryptswap

sudo cryptsetup remove /dev/mapper/cryptswap1

Hapus baris yang sesuai di / etc / crypttab. Saya hanya memiliki satu baris di sana tetapi Anda mungkin memiliki lebih jadi pastikan Anda menghapus yang benar

sudo vim /etc/crypttab 

Siapkan area swap baru (ingat output fstab)

sudo /sbin/mkswap /dev/sda3
sudo swapon /dev/sda3

dan akhirnya memperbaiki garis fstab

sudo vim /etc/fstab

ganti /dev/mapper/cryptswap1dengan/dev/sda3

Aktifkan dan nonaktifkan swap terenkripsi - Ubuntu

Saya dapat mengatasi masalah ini dengan langkah-langkah berikut:

Dari prompt perintah, jalankan gnome-disks

Temukan perangkat mana yang merupakan drive swap Anda. Milik saya/dev/sda3

ls -l /dev/disk/by-uuid/

Temukan ID yang dikaitkan dengan partisi swap Anda

sudo vim /etc/crypttab

Pada baris yang dimulai dengan cryptswap1, ubah bagian UUID = ... menjadi / dev / disk / oleh-id / ID-HERE. Simpan dan mulai ulang.

Jika Anda masih diminta kata sandi, jalankan:

sudo dd if=/dev/zero of=/dev/sdaX bs=512 count=20480

Nyalakan kembali.

Jalankan sudo fdisk -luntuk menemukan partisi swap (yaitu / dev / sda6)

Raih UUID di / etc / crypttab atau sudo blkiduntuk / dev / sda6 (ganti perangkat dengan swap Anda)

Menjalankan sudo swapoff /dev/sda6

Jalankan sudo mkswap -U UUID /dev/sda6(ganti UUID dan perangkat dengan swap Anda)

Tambahkan ,offset=1024ke akhir baris cryptswap di / etc / crypttab

Tambahkan "/ dev / mapper / cryptswap1 none swap sw 0 0" ke / etc / fstab

Menjalankan sudo update-initramfs -u

Menjalankan sudo swapon -a

Periksa swap aktif dengan sudo systemctl status /dev/mapper/cryptswap

Masalah ini masih ada bahkan di Ubuntu 15.10. Saya telah membuat solusi sementara - mematikan enkripsi untuk partisi swap (rumah masih terenkripsi). Panduan ini bekerja untuk saya dalam hal ini. Permintaan frasa sandi ini tidak lagi memperingatkan saya tentang sistem boot dan memperbarui perangkat lunak.

Mungkin, nanti saya akan menghidupkan enkripsi kembali partisi swap (menggunakan panduan yang sama ), ketika saya akan tahu, bahwa bug ini diperbaiki.

Solusi terbaik adalah menonaktifkan (tanda komentar) garis swap klasik di fstab (bukan mapper). jika Anda kemudian reboot dan ketik sudo swapon --summary Anda harus mendapatkan partisi swap di / dev / dm-X (biasanya 0). Jika ya, berbahagialah cryptswap bekerja dengan baik.

Sebagai alternatif untuk menyelesaikan bug, proses init dapat dialihkan ke pemula, karena ini adalah bug yang terkait dengan systemd. Di sini dinyatakan bahwa pemula dapat digunakan sebagai solusi.

Untuk melakukannya, cara termudah adalah menginstal paket yang sesuai:

sudo apt-get install upstart-sysv

Setelah instalasi, Anda masih dapat memulai sistem dengan systemd di sub-menu "Opsi lanjutan untuk Ubuntu" grub, dengan opsi yang disebut "Ubuntu, dengan Linux ... (systemd)."