Thanks Martin. Yes, that sounds like it because after I captured your below output, I commented out cryptswap1 and it boots quickly. I'll post the output of systemd-analyze critical-chain again after I reboot to capture it.
um@um:~$ systemd-analyze critical-chain The time after the unit is active or started is printed after the "@" character. The time the unit takes to start is printed after the "+" character. graphical.target @1min 36.507s └─ntp.service @1min 41.887s +28ms └─network-online.target @1min 36.483s └─network.target @1min 31.150s └─NetworkManager.service @1min 30.352s +796ms └─basic.target @1min 30.328s └─sockets.target @1min 30.328s └─dbus.socket @1min 30.328s └─sysinit.target @1min 30.322s └─networking.service @701ms +174ms └─local-fs.target @693ms └─media-um-VBOXADDITIONS_4.3.26_989881.mount @1min 42.004s └─dev-sr0.device @551ms um@um:~$ cat /etc/fstab # Removed comments to save space on the post.. # # <file system> <mount point> <type> <options> <dump> <pass> /dev/mapper/ubuntu--mate--vg-root / ext4 errors=remount-ro 0 1 # /boot was on /dev/sda1 during installation UUID=5359f267-7e41-4f26-8019-1067f1bc2e00 /boot ext2 defaults 0 2 /dev/mapper/ubuntu--mate--vg-swap_1 none swap sw 0 0 /dev/mapper/cryptswap1 none swap sw 0 0 um@um:~$ cat /etc/crypttab sda5_crypt UUID=d51f28a2-1653-41f4-b847-56c880492e7f none luks,discard cryptswap1 UUID=a3239201-afba-4b99-87c1-57c0b6c208e8 /dev/urandom swap,offset=1024,cipher=aes-xts-plain64 um@um:~$ sudo blkid [sudo] password for um: /dev/mapper/sda5_crypt: UUID="HxZvHu-1h97-0xsi-JLd1-vtAb-oeQk-HI0J8a" TYPE="LVM2_member" /dev/sda1: UUID="5359f267-7e41-4f26-8019-1067f1bc2e00" TYPE="ext2" PARTUUID="1ab40460-01" /dev/sda5: UUID="d51f28a2-1653-41f4-b847-56c880492e7f" TYPE="crypto_LUKS" PARTUUID="1ab40460-05" /dev/sr0: UUID="2015-03-16-17-37-09-00" LABEL="VBOXADDITIONS_4.3.26_98988" TYPE="iso9660" /dev/mapper/ubuntu--mate--vg-root: UUID="a3c2ab9d-4219-4540-97bd-ccf83521281e" TYPE="ext4" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1437362 Title: cryptswap is hanging during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1437362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs