A quick tip for GlusterFS volume. There are multiple possible reasons for a Linux process to hang in “Disk Sleep” state, which even the KILL…
Repairing damaged backup GPT with gdisk
Problem with network shared storage could lead to a damaged file system or even GPT tables, so the gdisk may help in this case. Here…
Force losetup detach of local file after it became unavailable
Mounting a file as loop devices is simple enough operation! But what if the file just disappears because of the network storage got unreachable? In…
MySQL slave upgrade: Slave failed to initialize relay log info structure from the repository
MySQL slave after upgrade from 5.6.x to 5.7.x may throw the following error: The best solution for this error is to: Master server – mysqldump…
libelf was not found in the pkg-config search path
Building from source under CentOS the user may stumble on some compilation errors and most of them are for missing -devel packages. Here is such…
VBoxManage: error: Failed to initialize COM! NS_ERROR_FILE_TARGET_DOES_NOT_EXIST (0x80520006)
What an error! And the VirtualBox stopped loading anymore! This error: and here with the GIU, which offers a little bit more information about the…
removing the default kernel in CentOS 8 – remove elrepo kernel
Removing the default kernel aka the loaded kernel in CentOS 8 maybe challenging because the package is protected and cannot be removed by the yum…
Gentoo emerge GO lang failed – atomic_amd64x.go: too many errors
Upgrading GO lang under Gentoo maybe a little bit tricky. The upgrading go lang from 1.13.7 to 1.15.5 failed with strange error: Googling a little…
Booting network installation from ipxe disk using IPMI KVM
There is a project for extended PXE Boot features https://ipxe.org/. This article is not for describing what this project may offer, but to show how…
gentoo network interface with hyphen in the name
Using the OpenRC (i.e. init system) and network names with special symbols like hyphen in the name may lead to errors of “command not found”…