Hot answers tagged external-hdd
It will not damage your Windows installation. Make sure that you are actually installing it in your external hard-disk (/dev/sdb or whatever) and you are actually installing the bootloader in this external hard-disk during the installation process. Here is a guide if you want a bit more detail.
Sure, it will not affect your internal device and thus it has no effect on your Windows HDD. Moreover just when you need to run the Windows you can easily just get rid of external device or easily you can use the boot options in your BIOS. Read this for info Creating ubuntu 14.04 boot into external hard drive
It depends on what you are doing. Generally the device is mounted at some location , such as /media/disk Example might be /dev/sdb1 mounted at /media/disk cp some_file /media/disk Generally, as an end user, using graphical applications, you are going to copy user data to this location (save as ... , copy, graphical access, download to ...). Sometimes ...
If the computer is booting in EFI mode, as your "UEFI" tag and the symptoms imply, then you should first be aware of the cause of the problem: External media normally boot using the default/fallback boot filename, which is EFI/BOOT/bootx64.efi on the EFI System Partition (ESP) on x86-64/AMD64 systems. Most OS installations are to internal disks, which boot ...
If no computer can read the disk and it is an external USB drive then we have two potential problems (it can be both): If it is simply an external desktop drive the actual internal hard drive on the USB hard drive may fine but the USB interface is broken. You'd have to break open the hard drive enclosure and pull out the drive to then hook it up like a ...
If the device works in a USB-2 port then there's an issue with the xhci driver and your device. I can't check the xhci source at the moment, but IIRC in ohci error 110 means timeout. Does the external drive have an ext. power supply? Try to first power up the drive, wait 10 seconds and then connect it to the USB3 port.
New answer based on latest edit Buffer I/O error on device sdc1, logical block 210570671 This message may indicate that the drive is about to fail. First of all: Make backups if you not have done it yet! Then check the reallocated sector count (smartmontools). If you see reallocated sectors, you should IMHO change the drive ASAP: smartctl -a /dev/sdc ...
If you used dd if=/dev/sda of=/dev/sdb (orsdc or sdd or ...) and our internal HDD was larger then the amount of data stored on your external drive, you've lost everything on the external hard drive. (Depending on the size of the internal HDD and the amount of data that the external HDD contained, your chances of recovery vary from 0% to an unknown %...) ...
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