Running Mint Cinnamon on an Intel NUC. Installed an internal 2.5" harddrive, but can't format with GParted, error says "Could not Unmount dev/Sda1/". "Target is Busy". I'm running GParted from a USB.

The SSD is new and empty as far as I know. I just want to use it for storage. It's not visible from Mint using Disk mgr.

Any thoughts or suggestions are appreciated.

Thanks,
John

probably it is not /dev/sda1 but something else. A fresh new SSD (which is empty) cannot be mounted at all.

Welcome to LinuxQuestions.

I agree with pan64 but need some additional information. If you are running Mint on the NUC, is the SSD a second internal drive? gparted defaults to the first drive found and if the SSD is a second drive you need to manually select it from a pull down menu typically located in the upper right of the GUI. As stated it is not /dev/sda but probably /dev/sdb

if the other reasons do not seem to fit then it might be -> if you mounted it in a filemanager / automount for whatever reasons. go terminal-> sudo unmount -l /dev/sda1 give that a try, or reboot and try not to open a filemanager

and yes to the ,make sure you are dealing with the right partition, whence you format it.. bye bye data.

The Internal HD is the 2nd HD. The first is a a SSD, sdb and I have 3 partitions on it, sdb1, sdb2, sdb3. sdb1 is my Mint partition, sdb2 my Mate partition and sdb3 my slackware/puppy/zorin whatever I'm trying at that moment. The 2nd Internal HD is a 2.5 drive, 2tb, brand new, formated to fat32. It is sda1 In the bios I can see it, but not in GParted. I can change the drive in the drop-down, but still can't unmount in GParted.

I tried to sudo unmount -l /dev/sda1, but get this

sudo: unmount: command not found

If I try to run a distro from a live USB, I don't see it either.

that is umount, without n

Did I write unmount again? Sorry umount like the other said.

Thanks, umount did the trick. Now I can see the internal drive from file manager.

Does it mean your problem is solved? - please mark the thread solved. Also, if you want to say thanks just click on yes.

Well, thanks was in my previous post, but but thanks again.