vsevolod@hp15ubuntu1804:~$ systemd-analyze blame
4.810s dev-sda1.device
1.664s udisks2.service
1.504s gpm.service
1.440s systemd-journal-flush.service
1.351s grub-common.service
1.327s apport.service
1.284s systemd-rfkill.service
1.258s systemd-resolved.service
1.194s sysstat.service
1.191s alsa-state.service
1.184s pppd-dns.service
1.171s rsyslog.service
1.164s networkd-dispatcher.service
root@hp15ubuntu1804:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdb1 during installation
UUID=706beb33-361d-4142-b3ba-2af5844bbcb6 / ext4 errors=remount-ro,discard 0 1
# swap was on /dev/sdb2 during installation
UUID=aa9978a6-2aa5-4cbb-bbf4-0056c346c1a9 none swap sw,discard 0 0
root@hp15ubuntu1804:~# blkid -c /dev/null
/dev/sda1: UUID="706beb33-361d-4142-b3ba-2af5844bbcb6" TYPE="ext4" PARTUUID="13d424a8-01"
/dev/sda2: UUID="aa9978a6-2aa5-4cbb-bbf4-0056c346c1a9" TYPE="swap" PARTUUID="13d424a8-02"
TRIM SSD раз в неделю выключен, так как discard. И диск в компе один, просто при установке флешка была sda почему-то. Пакет ureadahead удалял, не помогло.