can’t install dual boot in second ssd hard drive. It starts only from usb

I’m trying to install Kubuntu in a Samsung SSD 850 EVO hard drive. Actually I’ve also a Samsung SSD 860 EVO hard drive with Windows 10 installed. I’ve downloaded the ISO and burned into the USB key with Rufus. The ISO was ok and when I reboot and I choose USB as boot device, it starts.

I perform the installation on the hard disk (/dev/sda) that’s ok, or at least I don’t see any error. When the installer tells me that I need to restart, I reboot the PC, I choose the drive with Ubuntu installed but windows appears again.

The strange thing is that if I boot from the USB key, the UEFI menu tells me that I can boot from usb the hard disk ubuntu installation starts. It’s like grub was installed on the usb key.

So if I remove the usb key and I boot from ubuntu disk, nothing happens (windows starts). If I boot from USB key Kubuntu starts from hard drive.

I’ve also created manually partitions during the installed to be sure that grub will be installed on my hard disk.

What I’m doing wrong?

Want to install Ubuntu fully portable on an external hard drive. Should I be afraid that I’ll mess up my main drive?

I love Ubuntu and I really want it installed somewhere, however my laptop is pretty low on disk storage, and I would like to have it on an external drive. Just like a Live CD, but it’s actually storing my files etc.

Right now when I’m writing this, I am running a live session. There are 3 drives connected to the laptop: The main one (i cannot disconnect it), a 8GB flash drive I am using to run Ubuntu, and the drive I want Ubuntu to be installed to. Strangely, running “sudo fdisk -l” prints out only two drives, which appear to be the flash and the installation destination drives (my main pc’s drive is missing). The same is shown in ubiquity.

The only disk shown here is the disk I wish to install to.

If I ran the installation, should I be worried about messing up my main drive?

TL;DR – Want a full ubuntu installation on a portable drive. Ubuntu can’t detect my pc’s main drive. If I run the installation, can it ruin my main drive by any chance?

I’m really sorry for this post, I’m just trying to play safe.

Is multivendor a hard thing to do in magento 2?

My client wants to build a multivendor shop based on magento 2. There’s no shortage of extensions that does that, perhaps the most famous is created by webkul, my client was ready to pay webkul a huge sum of money in order to buy many extensions from them.

I wonder if it’s a hard task to do by coding because I need the rest api, the extensions don’t have a rest API, and at some point in the future, the plan is to create a mobile app.

So if doing multivendor isn’t a big deal in magento 2, at least I’d be able to do it the way I want it to be. The less extensions the better.

hard brick? [asus zenfone 5 – lollipop]

I have a problem with my asus zenfone 5 (root). I think it’s hard bricked. I will explain better, yesterday I did a restore to “clean” the system, while restoring freezes, then I try to boot into recovery mode. I long ago, installed a custom recovery, the fact is that by inserting the recovery.img and trying to start it from the custom recovery. I get errors and does not install, so start in droidboot mode to adjust all manualmente by pc (GNU / linux), with fastboot flash recovery.img, but when I have to do the last step described by driving mistake.

Now I do not have a chance to get more in recovery mode, in fact, when I press power + vol appears the Android logo with red exclamation point, if I try to start it normally there is a loading of the asus logo with the infinite wheel, but when there is asus adb logo detects it, it just says chen is not “authorized”, the phone has to be thrown away? There are hardware / software solutions ?
thank you so much

How can I prevent a user from copying files on another hard drive?

I have a Linux machine that contains sensitive files. Users should be able to access them (read) when they are using the computer, but should not be able to copy them on another hard drive (USB stick or another hard drive that might have been added on the same machine).

The main hard drive has been encrypted, in order to prevent someone from extracting it and stealing the files.

I am free to use SELinux or other approaches in order to achieve the goal.

Cannot write to hard drive

I have this problem when I try to copy a folder from my desktop to hard drive in my computer – when I drag the folder to the DATA disk window, nothing happens. When I try to copy the folder in terminal:

cp -r folder/ //dev/sda2/ 

I get : cp: failed to access ‘//dev/sda2/’: Not a directory I also tried to change permissions as:

sudo chmod u=rwx /dev/sda2 

But it didn’t help. Please help, I am new to Ubuntu (I have 18.04)

How hard can it be for Google to separate Notification and Ringing volume on Android One

I am tired of ultra-loud notification tones and the use of unoptimized third-party software to control something as basic as notification volume.

I believe Google is blessed with the most advanced technical people in the world, why is programming a volume control mechanism be an issue.

or are they purposely trying to frustrate android one users?

Hard drive replacement iMac late 2013

I know almost nothing. I’m an elderly woman who is partially blind. I did find a step by step guide on iFixit and have a friend with tools and nimbler fingers than mine. He’s not familiar with Mac’s.

This is model iMac14,1 late 2013.

My problem is: How to get a functioning OS on the new drive so I can clone my old drive onto it.

I CANNOT install the latest Mac OS. If I do (I think) I won’t be able to clone my current OS (High Sierra) backwards over it. Most of my important apps and games aren’t compatible after High Sierra.

There’s a 20$ $ Mountain Lion OS in the Apple mac store, but I don’t for sure know how to install it on the iMac – the Mountain Lion OS is a download. Do I have to borrow a dvd player and burn a disk, and use the dvd player for an install – or is it good enough to have the dmg on my current peripheral drive?

Will this even work? 1) Have a OS ready on the new internal drive, 2) clone (Carbon Copy Cloner) my current working OS – I’m booting into it on a peripheral drive – over the new OS on the new drive.

I know – so many questions. If you have advice, I’m grateful.