In this category, you will find KernelCare related guides, FAQs, setup instructions, and troubleshooting articles written by our Support Engineers. Those will help you to tackle the most frequent problems, answer the most frequent questions, and explain non-trivial setups. Visit our Documentation page for administration guides and manuals where all our features are described in detail: https://docs.kernelcare.com
Articles
- cannot stat /proc/sys/fs/enforce_symlinksifowner or /proc/sys/fs/symlinkown_gid
- Servers froze after updating tuned-profiles-cloudlinux to version 0.2-9.el8
- Stderr: New kernel detected / There are no updates for this kernel yet.
- kpatch_ctl: page allocation failure: order:6, mode:0x40cc0(GFP_KERNEL|__GFP_COMP), nodemask=(null),cpuset=/,mems_allowed=0
- Why "fs.symlinkown_gid" reset after reinstall or update KernelCare tool?
- Customer Onboarding Guide
Extended Lifecycle Support
- How to activate CentOS 8 ELS with an activation key?
- How to activate CentOS 6 ELS with an activation key?
- How to activate CentOS 7 ELS with an activation key?
- Could not resolve host: mirrorlist.centos.org
- CentOS 6 ELS | [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 500 Internal Server Error
- What is the duration of the ELS?
Linux Support Services
Troubleshooting
- KernelCare error: "Unknown Kernel"
- The `2` patch level is not found for the `extra` patch type.
- KernelCare responses with the "HTTP Error 401: Unauthorized" error during update
- depmod: ERROR: fstatat(4, kcare.ko): No such file or directory
- KernelCare update. Error unpatching [255] ('default', '', '', False)
- The kcarectl --lib-update fails
FAQ
- Do I need to reboot if using KernelCare
- How to submit a Feature Request for TuxCare products?
- kcarectl --doctor does not generate the key
- The status of the KernelCare is inactive (dead)
- KernelCare+ (plus) and Imunify360
- KernelCare warning messages that could be safely ignored