我之前在我的高端台式机上从 USB SSD 启动了 Mint 18.x，加载时间大约为 15 秒。
我最近买了一个新的 SSD，并在上面安装了 Mint 20.3。问题是在这个新安装中，屏幕在我的主板徽标上停留了几分钟，然后才最终进入下一个 Linux Mint 屏幕。我已经尝试使用不同的分区设置重新安装几次，并且略有不同，但问题仍然存在。以下是终端诊断的一些输出：
$ systemd-analyze
Startup finished in 12.560s (firmware) + 3min 44.839s (loader) + 3.480s (kernel) + 1.010s (userspace) = 4min 1.891s
graphical.target reached after 1.005s in userspace
$ systemd-analyze blame
342ms networkd-dispatcher.service
293ms systemd-rfkill.service
283ms dev-sdb1.device
171ms upower.service
164ms accounts-daemon.service
etc....
$ sudo df -Th
Filesystem Type Size Used Avail Use% Mounted on
udev devtmpfs 7.8G 0 7.8G 0% /dev
tmpfs tmpfs 1.6G 1.8M 1.6G 1% /run
/dev/sdb1 ext4 865G 8.8G 812G 2% /
tmpfs tmpfs 7.8G 0 7.8G 0% /dev/shm
tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup
/dev/sdb2 vfat 94M 5.2M 89M 6% /boot/efi
tmpfs tmpfs 1.6G 44K 1.6G 1% /run/user/29999
$ 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=002adaac-5e2d-4b43-ada9-0321daa624ae / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sdb2 during installation
UUID=DBC4-8EFB /boot/efi vfat umask=0077 0 1
/swapfile
$ blkid
/dev/nvme0n1p2: LABEL="nvme" UUID="BA2C31472C310045" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="8263f52b-ab79-4a82-aca6-abbe304a5fbe"
/dev/sda1: LABEL="System Reserved" UUID="EA18E9DB18E9A6B3" TYPE="ntfs" PARTUUID="33e33b53-01"
/dev/sda2: UUID="0E46215F46214933" TYPE="ntfs" PARTUUID="33e33b53-02"
/dev/sda3: UUID="5672621C7262015B" TYPE="ntfs" PARTUUID="33e33b53-03"
/dev/sdb1: UUID="002adaac-5e2d-4b43-ada9-0321daa624ae" TYPE="ext4" PARTUUID="e8c7415a-01"
/dev/sdb2: UUID="DBC4-8EFB" TYPE="vfat" PARTUUID="e8c7415a-02"