How to Fix the “hash sum mismatch” Error When Updating Kali Linux
It’s important to keep your system packages up-to-date because you could quickly upgrade your PC’s software and enjoy all the latest features and fixes. If you’ve encountered an error like “hash sum mismatch” on Linux, this routine task can quickly become frustrating.
Unfortunately, “hash sum mismatch” is a common error to encounter when updating system packages in Kali Linux—and when left unaddressed, it can leave your system vulnerable with outdated software. Luckily, you can get rid of the “hash sum mismatch” issue for good with a few simple commands.
Why Does Kali Update “hash sum mismatch” Occur?
The “hash sum mismatch” error occurs in Kali Linux when the hash associated with mirror packages doesn’t match what your operating system expects. You may encounter this error for a few different reasons, but it’s most commonly seen after a system crash causes the operating system to fail to update.
The issue is also known to occur when you attempt toupdate your packages in an Ubuntu-derived distrousing a mirror that is currently syncing. You can get around this issue by attempting to runsudo apt-get updateafter adding anotherofficial Kali mirrorto/etc/apt/sources.list. For example, you can update your repository sources list file to the following line:
Once you’ve switched your package source to a new repository, open the terminal and entersudo apt-get updateagain. Any issues with the mirror will resolve when you switch what package repository you use, but you may have to do further troubleshooting if the issue is with your package manager or system.
Make apt-get Ignore “hash sum mismatch”
If changing your system’s source mirror doesn’t work, you may need to resolve the “hash sum mismatch” error with other methods. Firewalls can sometimes cause this error by inadvertently blocking access to required files, so it’s worth temporarily turning off your firewall and giving the update another try if you believe this may be the case.
You should also try running the following commands to clear your package file cache and update your system, as the “hash sum mismatch” error is sometimes related to caching issues:
Finally, if you arerunning Kali Linux as a virtual machineon Windows, you may need to fix issues with the host OS. Incompatibility issues caused by the Windows Hypervisor Platform can be corrected by entering the following commands in an administrator-privileged Command Prompt:
Update System Packages Effectively on Kali Linux
It’s frustrating to run into issues like “hash sum mismatch” because keeping your software up-to-date is vital. While it isn’t possible to avoid every error, you may stay clear of the most common pitfalls and enjoy a relatively snag-free updating process by following a step-by-step guide.
Regular app updates are important for any Linux system. Here’s how you can update one app or all apps on Linux easily.
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