Question Ubuntu boots really slow

Sep 14, 2019
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I bought an acer aspire A51515 about a month back.It has a core i5 8th gen processor, 8 gigs of ram, and ask me if you need something else. It came preinstalled with Ubuntu, but for some reason the retailer installed windows 10 after i bought it. So i installed Ubuntu 18.04 LTS with USB installation, completely erasing the disk first in the installation options menu. The problem now is that where people say Ubuntu takes 10 seconds to boot, my laptop takes about 5 minutes.I'm relatively new to Linux so i have'nt really tried much except reinstalling Ubuntu 3 times or so.
output of dmesg-
[ 2342.150225] i2c_hid i2c-ELAN0501:01: i2c_hid_get_input: incomplete report (14/65535)
this is the output to systemd-analyze critical-chain-
graphical.target @9min 54.149s └─multi-user.target @9min 54.149s └─snapd.seeded.service @3min 20.246s +6min 33.902s └─basic.target @2min 34.839s └─sockets.target @2min 34.839s └─snapd.socket @2min 34.839s +461us └─sysinit.target @2min 34.773s └─cryptsetup.target @2min 34.773s └─systemd-ask-password-wall.path @9.550s └─-.mount @9.546s └─system.slice @9.550s └─-.slice @9.546s
and inxi-F-
System: Host: PUTER Kernel: 4.18.0-15-generic x86_64 bits: 64 Desktop: Gnome 3.28.3 Distro: Ubuntu 18.04.2 LTS Machine: Device: laptop System: Acer product: Aspire A515-51 v: V1.17 serial: N/A Mobo: KBL model: Charmander_KL v: V1.17 serial: N/A UEFI [Legacy]: Insyde v: V1.17 date: 03/20/2018 Battery BAT1: charge: 37.5 Wh 82.2% condition: 45.6/48.9 Wh (93%) CPU: Quad core Intel Core i5-8250U (-MT-MCP-) cache: 6144 KB clock speeds: max: 1600 MHz 1: 820 MHz 2: 1115 MHz 3: 1094 MHz 4: 822 MHz 5: 1078 MHz 6: 1106 MHz 7: 1056 MHz 8: 1166 MHz Graphics: Card: Intel UHD Graphics 620 Display Server: x11 (X.Org 1.20.1 ) driver: i915 Resolution: 1366x768@59.97hz OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) version: 4.5 Mesa 18.2.2 Audio: Card Intel Sunrise Point-LP HD Audio driver: snd_hda_intel Sound: ALSA v: k4.18.0-15-generic Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169 IF: enp1s0f1 state: down mac: 98:29:a6:3f:37:f9 Card-2: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter driver: ath10k_pci IF: wlp2s0 state: up mac: e8:2a:44:6b:de:33 Drives: HDD Total Size: 1000.2GB (0.7% used) ID-1: /dev/sda model: WDC_WD10SPZX size: 1000.2GB Partition: ID-1: / size: 916G used: 6.3G (1%) fs: ext4 dev: /dev/sda1 RAID: No RAID devices: /proc/mdstat, md_mod kernel module present Sensors: System Temperatures: cpu: 29.8C mobo: 27.8C Fan Speeds (in rpm): cpu: N/A Info: Processes: 268 Uptime: 48 min Memory: 1337.3/7852.2MB Client: Shell (bash) inxi: 2.3.56
 
Make sure 'Secure Boot' is no longer enabled....

Did you delete all existing installations/partitions of everything at installation setup, and go with Guided install w/EXT4 (.i.e, let Ubuntu set up it's preferred swap file partition, etc) ?
 
Most Linux installs are still quite snappy even when run from 5400 RPM laptop drives...

But, given agonizing slow boots, the drive is still the first suspect. Given 500 GB SSDs for $60 these days, that's a good start!
 

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