Centos – /dev/root does not exist in CentOS 7

bootcentossystem-installation

I get this error message when trying to install CentOS 7 from an USB device:

/dev/root does not exist in CentOS 7

How can I solve this problem?

Best Answer

Use Win32 Disk Imager on Windows or dd to write the ISO to the USB stick on Linux/OSX.

dd if=CentOS-7.0-1406-x86_64-NetInstall.iso of=/dev/sdb bs=8m

I've recently used the first and it booted fine after doing that.

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Centos – Trouble booting CentOS

It seems the problem was incorrect mapping of the hard disk.
If the USB was plugged in during boot, hard disk was recognized as hd1; but if there wasn't the USB, it was recognized as hd0.

Fixed the problem by changing grub.conf to use hd0.

CentOS 7 Installation Failed

I think you must make bootable usb using dd command (if your iso is in home directory):

First unmount (not eject) the usb: sudo umount /dev/sdb1

Then, write the image to the disk:

sudo dd bs=4M if=CentOS-7.0-1406-x86_64-Everything.iso of=/dev/sdb

Then it will not show /dev/root does not exist.

Best Answer

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CentOS 7 Installation Failed

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