To specify the memory reserved for kdump kernel, set the crashkernel= option to the required value. Memory reserved for the kdump kernel is always reserved during system boot, which means that the amount of memory is specified in the system’s boot loader configuration.
Advanced disk catalog crash how to#
For information on how to configure the amount of reserved memory in the graphical user interface, see Section 7.2.3.1, “Configuring the memory usage”. For information on how to do so on the command line, see Section 7.2.2.1, “Configuring the memory usage”.
![advanced disk catalog crash advanced disk catalog crash](https://www.wincatalog.com/sshotes/w3-search-wnd-1024.png)
If the system has less than the minimum amount of memory required for the automatic allocation to work or if your use case requires a different value, you can configure the amount of reserved memory manually. See Section 7.8.2, “Minimum threshold for automatic memory reservation” for a list of minimum requirements for automatic memory reservation based on the system architecture. This behavior is enabled by default, but only works on systems that have more than a certain amount of total available memory, which varies based on the system architecture. On many systems, kdump can estimate the amount of required memory and reserve it automatically. For a complete list of memory requirements for kdump based on the system architecture and the amount of physical memory, see Section 7.8.1, “Memory requirements for kdump”. On a system with 1 TB of total physical memory installed, this means 224 MB (160 MB + 64 MB). For example, on the x86_64 architecture, the amount of reserved memory is 160 MB + 2 bits for every 4 KB of RAM. To find out the exact name of the machine architecture (such as x86_64) and print it to standard output, type the following command at a shell prompt:Īnother factor which influences the amount of memory to be reserved is the total amount of installed system memory. One of the major factors is the system’s hardware architecture. The memory requirements vary based on certain system parameters. When reserved, this part of the system memory is not available to main kernel. In order for kdump to be able to capture a kernel crash dump and save it for further analysis, a part of the system memory has to be permanently reserved for the capture kernel. Collecting file hashes with integrity measurement architecture
Advanced disk catalog crash verification#
Enabling integrity measurement architecture and extended verification module Enhancing security with the kernel integrity subsystem Support for architectures on kernel and kernel-alt packages Minimum threshold for automatic memory reservation Supported kdump configurations and targets
![advanced disk catalog crash advanced disk catalog crash](https://helpx.adobe.com/content/dam/help/en/elements-organizer/using/backup-restore-catalogs/jcr_content/main-pars/procedure/proc_par/step_1/step_par/image_1627826554/restore-catalog-v1.png)
Using sadump on Fujitsu PRIMEQUEST systems Configuring kdump in the graphical user interface Applying patches with kernel live patching Verifying the initial RAM file system image Memory protection keys for userspace (also known as PKU, or PKEYS) Hardware specific kernel command-line parameters What kernel command-line parameters can be controlled Signing kernel module with the private key System administrator manually adding public key to the MOK list Factory firmware image including public key Generating a public and private X.509 key pair Kernel module authentication requirements Sources for public keys used to authenticate kernel modules
![advanced disk catalog crash advanced disk catalog crash](https://www.wincatalog.com/sshotes/en-w3-main-wnd-1024.png)
Preventing kernel modules from being automatically loaded at system boot time Loading kernel modules automatically at system boot time Unloading kernel modules at system runtime