Error Downloaded File Checksum Does Not Match
Prior to burning your downloaded ISO image (or using it every bit a virtual disc in Virtualbox), it is strongly recommended that y'all offset bank check that information technology hasn't been corrupted. The consequences of not doing then, particularly if you intend on installing Manjaro equally your principal operating system, should be obvious, that is that a corrupted image volition result in a corrupted installation.
To make the cheque, you must offset download the appropriate checksum file from the same Sourceforge website folder as your chosen ISO image. A checksum file will have the same name every bit the ISO image that it is to exist used with; the only difference is that it volition terminate in either -sha1.sum or -sha256.sum. For instance, the advisable checksum files for the manjaro-xfce-0.eight.i-x86_64.iso file (64 fleck Manjaro release 0.8.1 with the XFCE desktop) would be:
- manjaro-xfce-0.8.1-x86_64-sha1.sum, and/or
- manjaro-xfce-0.8.ane-x86_64-sha256.sum
SHA1 and SHA256
The 'sha' part of the checksum file proper name stands for
Southwardecure
Hash
Algorithm. This algorithm is used to generate a particular code unique to the downloaded ISO image. sha1 and sha256 are dissimilar versions of the algorithm that you lot can use to practice this. Whilst sha1 is the most normally used version, sha256 is a after and more secure version. Whichever you lot decide to apply is entirely your selection. However, if you are unsure, and so it is recommended to utilize sha256.
The checksum file itself is only a text document that contains a code that should friction match the code generated by the sha1 or sha256 algorithm. As such, if the code generated from the ISO file matches that contained in the checksum file, then the ISO is fine; otherwise, if the two codes don't lucifer and so it ways that the ISO file has inverse in some way, almost likely due to existence corrupted. You tin can think of it similar someone using a secret countersign to place who they are: if they provide the wrong countersign, then something is obviously amiss!
Don't worry if this all sounds a flake much, it's actually very straightforward and piece of cake to use!
Checking in Linux
To bank check the integrity of your downloaded file, it will be necessary to first open the downloaded checksum file using a text editor such every bit Gedit. Depending on whether you intend to use sha1 or sha256, ensure that you lot have downloaded and opened the appropriate checksum file, that is ane ending in *.sha1sum or *.sha256sum respectively) every bit they will comprise different codes. Once the checksum file has been opened and the code is visible, open up your terminal and change to the directory where your downloaded ISO is stored. For example, if your ISO file is located in the default Downloads folder, you would enter the following control:
user $ cd Downloads
The control to then perform a checksum uses the post-obit syntax:
[sha1sum or sha256sum] [ISO Image]
For example, the following command volition utilize sha256 to generate a lawmaking from the 64 bit Manjaro XFCE 0.eight.i ISO. The code generated can so be compared to the lawmaking provided past the appropriate sha256 checksum file:
user $ sha256sum manjaro-xfce-0.eight.1-x86_64.iso
As illustrated, in this instance both codes match, thus confirming that the downloaded ISO file is correct. The following command would employ sha1 to undertake exactly the same task:
user $ sha1sum manjaro-xfce-0.8.ane-x86_64.iso
When satisfied that both codes friction match, then it is safe to proceed to either burning the ISO to your chosen installation media, or using information technology immediately in Virtualbox. If the codes do non lucifer, then it volition be necessary to delete the ISO paradigm and download it once again.
Checking in Windows
It will be necessary to download and install a checksum utility awarding. There are many tools which can provide sha1 and sha256 sums. One such tool is Quick Hash
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Posted by: lemelinmorthattly.blogspot.com
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