The technical definition of an operating system is “a platform that consists of specific set of libraries and infrastructure for applications to be built upon and interact with each other”. A kernel is an operating system in that sense. The end-user definition is usually something around “a software package that provides a desktop, shortcuts to … Read more
Understanding dmesg timestamp is pretty simple: it is time in seconds since the kernel started. So, having time of startup (uptime), you can add up the seconds and show them in whatever format you like. Or better, you could use the -T command line option of dmesg and parse the human readable format. From the … Read more
There are a lot of links after this brief overview of what is involved in writing an OS for the X86 platform. The link that appears to be most promising (www.nondot.org/sabre/os/articles) is no longer available, so you’ll need to poke through the Archive.org version to read it. At the end of the day the bootloader … Read more