Recovering Deleted /bin on CentOS
So, as the saying goes, shit happens and the other day I accidentally deleted /boot on a CentOS 6 box. I have NetBackup running on the system, so this would not have been a problem (as long as I didn’t try to reboot). Unfortunately, I also blew away /bin (where ls, cat and all that useful stuff lives) and some of /etc, for good measure. Without some commands in /bin, NetBackup “bp” command is unable to find backup image records. Bummer.
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Trenbolone Results
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Where to Buy Tren
When it comes to purchasing Trenbolone, it’s crucial to prioritize safety and authenticity. Reliable sources for acquiring Trenbolone include reputable online suppliers, but it’s essential to conduct thorough research to ensure the vendor’s credibility. Look for user reviews, certifications, and guarantees of product quality. Avoid buying from shady sources or underground labs to minimize the risk of counterfeit or impure products.
Tren Cycle and Dosage
Trenbolone is a potent compound, and users must approach it with caution and respect. Typical Tren cycles range from 8 to 12 weeks. Dosages vary depending on experience, goals, and tolerance levels. Beginners typically start with 50-75 mg every other day, while advanced users may go up to 100-150 mg per day. It’s advisable to start with lower doses to assess individual reactions and gradually increase if necessary. Always consult a healthcare professional before starting any steroid cycle.
Tren Side Effects
While Trenbolone offers exceptional results, it also carries the potential for side effects. Common side effects include:
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Cardiovascular Issues: Tren can negatively impact cholesterol levels, potentially increasing the risk of heart disease. Monitoring cholesterol levels is essential during a Tren cycle.
Sleep Disturbances: Some users experience insomnia and vivid dreams while using Trenbolone.
Mental Effects: Tren can lead to mood swings, aggression, and anxiety in some individuals.
Sexual Dysfunction: Tren can cause libido issues and erectile dysfunction, known as “Tren dick.”
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Conclusion
Trenbolone is undeniably a powerful steroid, delivering remarkable results in muscle growth and fat loss. However, its potency comes with potential risks and side effects that users must be aware of and manage responsibly. When considering Tren use, always prioritize safety, consult with a healthcare professional, and purchase from reputable sources to ensure product authenticity and quality. Remember that the use of steroids for performance enhancement should be approached with caution and careful consideration of the associated risks and benefits.
Options in this case usually are a) boot the system from a CD, mount the boot disk and copy missing binaries from another, identical server; b) reinstall OS, load NetBackup agent and run a bare-metal restore. There may be some options in between, depending on the specifics. But I really did not feel like spending the rest of the day recovering this server.
Luckly, I was still logged into the server. It was a case when the plane lost all the engines, but was still in the air. The solution was to install YUM utilities and use the optional features of YUM to identify missing files and reinstall relevant packages. Here’s a summary of the commands:
Install yum-utils and yum-verify:
yum -y install yum-utils.noarch yum-verify
Run yum-verify to identify specific paths to the missing binaries. In my case, I deleted /bin, so the syntax I used was:
yum verify --verify-filenames='*bin/*'
The output goes something like this:
coreutils.x86_64 : A set of basic GNU tools commonly used in shell scripts File: /bin/arch Problem: file is missing File: /bin/basename Problem: file is missing File: /bin/cat Problem: file is missing File: /bin/chgrp Problem: file is missing
Then you just grab the names of the affected packages and reinstall them. For example:
yum -y reinstall coreutils
Or you can feed the output of yum-verify to yum-reinstall:
yum verify --verify-filenames='*bin/*' | grep "^[a-z].*:.*" | awk '{print $1}' | while read line ; do yum -y reinstall “${line}” ; done
Once I had the basics in /bin, I was able to use local NetBackup commands to restore the missing contents of /boot and /etc. Whew.
Does the yum progam itself not reside in /bin?
in /usr/bin
in /usr/bin on RHEL/CentOS
And if I wasn’t logged anymore? How can I access and fix that ?