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can't boot from usb card reader

asked 2019-03-27 07:45:18 -0600

ec44a8 gravatar image

I wrote the Fedora 29 live ISO file to the an usb card reader with the following command: dd if=/home/michael/Downloads/Fedora-Workstation-Live-x86_64-29-1.2.iso of=/dev/sdb4 bs=20M

but it can't boot . what should I do?

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answered 2019-03-27 15:58:10 -0600

fcomida gravatar image

You copied your iso image to a partition (/dev/sdb4). Unmount your card and format it with: mkfs.vfat /dev/sdb –I and then copy with dd: dd if=/home/michael/Downloads/Fedora-Workstation-Live-x86_64-29-1.2.iso of=/dev/sdb

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ec44a8 gravatar imageec44a8 ( 2019-03-27 21:01:22 -0600 )edit

answered 2019-03-28 00:47:10 -0600

@fcomida right answer and I have additional answers.

Since the dd command is used for diskette use and copying, it is very helpful if you are familiar with the related information. It can also be useful for copying entire diskettes.

dd if=/home/michael/Downloads/Fedora-Workstation-Live-x86_64-29-1.2.iso of=/dev/sdb bs=10M

In addition, if there is no bs setting value, the copy speed will be slow because it operates as default value. Therefore, the faster the interface speed, the higher the value can be. However, at a small size like a usb, It do not feel a big difference.

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Asked: 2019-03-27 07:45:18 -0600

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Last updated: Mar 28 '19