Zephyr Zephyroff's questions

I tried to install another OS alongside with the current Ubuntu 16.04, but at the end of the installation process when grub should be installed a fatal error occurred. Since then, I cannot boot to my OS any longer. "Welcome to emergency mode" is what I see instead of login screen. I found that /home partition isn't mounted. To mount it I do mount -a in this "emergency mode" then press Ctrl + D and then the OS is loading normally. mount /etc/sda9 /home && systemctl default also works fine.

Here is my fstab:

# / was on /dev/sda8 during installation
UUID=43c8292e-dfce-4191-9040-8797667be0e3 /      ext4   errors=remount-ro 0  1
# /boot was on /dev/sda7 during installation
UUID=2b80fd17-a9d5-4c80-8e6e-d917f4e02cc0 /boot  ext2   defaults  0     2
# /home was on /dev/sda9 during installation
UUID=0873df66-f7fe-416c-bebf-eec4e26f11e7 /home  ext4   defaults  0     2
# swap was on /dev/sda6 during installation
UUID=52728841-4b38-416b-888c-9742e98a2943 none   swap    sw     0       0

What can I do to get it back to work?

There is a problem with my laptop — jumping cursor. I think the hardware is the source of the problem. Maybe toucpad is just very inaccurate when getting finger coordinates and touching events.

On Ubuntu 14.04 I just set vertical and horizontal hysteresis and high and low finger pressure to make touchpad feel smooth and nice. When I installed 18.04 I found that I can't adjust my touchpad any more (except a few options that are not too helpful in my case).

So, can anybody of you, guys, help me with getting back that beautiful synaptics driver?

The OS freezes sometimes (sometimes frequently) when I open the laptop lid.
Ubuntu was started before, successfully logged in and some work had been done. Everything went alright until I closed the lid and (after some time) opened it again. In a normal situation I could just log in with my password, but sometimes I can't.
The screen isn't completely frozen. Mouse is moving, the password field is filling and the panel icons seem to react on cursor covering (without showing the menus). But nothing happens. No movement inside the laptop, no sound. It looks like it is switched off. No possibility to switch to the TTY. Only reset with the power button works. All unsaved data is lost.
What do I do guys? I have completely no idea.
My laptop is Lenovo V580c with hybrid graphics Nvidia (updating driver didn't help).

I mean how to install programs from repos into the user directory without sudo?

There are two ways (and even more) of installing software: from repos and from the software developer's website (tarball). First method requires one to have the superuser password. One must use sudo to perform a command like this apt-get install app_name. The second method is to download a tarball from the website, extract it, place the extracted files into the specified directory (or build it first), set up shortcuts. As you can see, the second method needs a user to have certain skills, but the first one needs only a knowledge of the superuser password.

The question is — how to combine these advantages: not to know the password (install software to home directory), not to be skilled (install in one click) and to use software only from repos.

Why it looks not so complicated for me: as an example let's look at SweetHome3D. This app is available both in repos and on the developer's website. When I download the tarball I just extract it, rename the folder to make it invisible and set up the shortcut (make it and then place it into ~/.local/share/applications). Or I can just do $ sudo apt-get install sweethome3d

Now let's try something different (not necessary like this):
Perform $ apt-get download sweethome3d. This command downloads .dep file.
Extract the contents. There are no difficulties of doing this.
… (here are some automatic actions to make the app prepared to launch)
PROFIT!

Any ideas?

I am user of LibreCAD and I haven't seen any new version of it since June last year. But the new versions continue to release. These versions are for Windows and Mac. LibreCAD web page still says that the application is produced for the three OSes (including Linux) that makes me a bit confused. Does any one know what happened to LibreCAD for Linux? They don't reply to the people who ask them about this on their blog. On sourceforge one can download the distro only for Win and Mac. Any idea?