[howto] writing Manjaro ISOs to USB with dd

This is just a mini tutorial on how to write ISOs correctly to a USB stick.

  1. Download the ISO and the checksum file

  2. First verify the checksum:
    $ sha1sum -c manjaro.iso.sha1
    It should then print a line which says “OK”.
    If it’s not okay, it might be a bad download, so download again.

  3. Print out the checksum, we’ll need it later on:
    $ sha1sum manjaro.iso
    823b4e4e2c734c6b4cf95b3f100b5c6397a252e2 manjaro-architect-18.0-stable-x86_64.iso

  4. Plug in your USB stick

  5. Check the device it got associated with:
    $ ls -l /dev/disk/by-id | grep usb
    [...] usb-General_USB_Flash_Disk_0510410000000090-0:0 -> ../../sdb

  6. Start the write process with dd:
    $ sudo dd if=manjaro.iso of=/dev/sdb bs=1M oflag=sync status=progress
    For old and slow USB2 sticks, you can use a lower bs value like e.g. 128K.

  7. You get a confirmation when the transfer has finished:
    602976256 bytes (603 MB, 575 MiB) copied, 86,7218 s, 7,0 MB/s

  8. Now you can check whether the file has been correctly copied to the stick:
    sudo dd if=/dev/sdb iflag=count_bytes count=602976256 | sha1sum
    Adjust the count parameter to represent the number of bytes written, which you get from the confirmation above in point 7.
    602976256 bytes (603 MB, 575 MiB) copied, 24,0766 s, 25,0 MB/s 823b4e4e2c734c6b4cf95b3f100b5c6397a252e2 -

  9. Compare the checksum with the one you got in step 3, if they match, you’re good to go!


Notes:

a. It’s recommended to also check the signature of the ISO with gpg.
That does not only verify the integrity, but also the authenticity.

b. Instead of writing to /dev/sdX, you can also write to /dev/disk/by-id/usb-xxx (see point 5).
This helps avoiding confusion especially if you have lots of devices.


EDIT 1: small corrections

19 Likes

Or you can always use “etcher” its in the repo’s.

1 Like

Correct, etcher is nice. But it’s also very heavy and relies on electron.
I’ve now changed the title of this thread to make it clear that it’s about dd.

2 Likes

if possible , with GUI
use isousb

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