ZFS has some magical features, comparable to NetApp’s WAFL capabilities. One of the less-used on is the ZFS send/receive, which can be utilised as an engine below something much like NetApp’s SnapMirror or SnapVault. The idea, if you are not familiar with NetApp’s products, is to take a snapshot of a dataset on the source,…
This is a tricky one. In order to resize /boot, which is, commonly the first partition, you need to push forward the beginning of the next partition. This is not an easy task, especially if you are not using LVM – then you have to use external partitioning modification tools, like PQMagic (if it still…
An update: I am adding a link to a post where I share my thoughts about the additional steps required to protect a Linux system against physical access to data. I add it at the top of this article, because I want some insight from you – the people who might read this post. It…
I was missing some bleeding-edge packages, and while I was able to find the RPM packages, I was unable to find the repo path. So, thanks to this post, I was able to use it. This will probably break my Linux, so I will use it in a test environment first.The repo file would look…
Linux boot sequence includes many stages. Following the BIOS initialisation, the boot loader is being called (GRUB or GRUB-EFI), then GRUB does its magic, and then it loads the kernel and the init RAM FS (initramfs or initrd) to memory. Following that, the kernel is jumped to, and a set of scripts are called from…
You can find bazillion sites explaining Linux LVM, however, I am preparing for my next article, about partition resize for the advanced user, and LVM deep understanding is required, so I have decided to explain some of the internals of LVM for the advanced user. This explains the how it is built more than the…
