Some x86 servers with older BIOS firmware, for example, will not boot if a keyboard is not detected.

It is not uncommon to find legacy machines in production environments, like when some equipment uses an outdated connection to communicate with the controlling computer, making it necessary to pay special attention to some peculiarities of these older machines. NVMe devices receive the prefix nvme, as in /dev/nvme0n1p1 and /dev/nvme0n1p2. used to identify the first and second partitions of the device identified second. are used for the first and second partitions of the device identified first and /dev/mmcblk1p1, /dev/mmcblk1p2, etc. For SD cards, the paths /dev/mmcblk0p1, /dev/mmcblk0p2, etc. The exception to this pattern occurs with memory cards (SD cards) and NVMe devices (SSD connected to the PCI Express bus). used to identify the first and second partitions of the block device identified second. are used for the first and second partitions of the block device identified first and /dev/sdb1, /dev/sdb2, etc. For IDE disks, the sd prefix will be used, but the third letter will be chosen depending on whether the drive is a master or slave (in the first IDE channel, master will be sda and slave will be sdb). IDE, SSD and USB block devices will be prefixed by sd. Topic 104: Devices, Linux Filesystems, Filesystem Hierarchy StandardДЎ04.2 Maintain the integrity of filesystemsДЎ04.3 Control mounting and unmounting of filesystemsДЎ04.5 Manage file permissions and ownershipДЎ04.6 Create and change hard and symbolic linksДЎ04.7 Find system files and place files in the correct locationДЇrom Linux kernel version 2.4 onwards, most storage devices are now identified as if they were SCSI devices, regardless of their hardware type. Topic 102: Linux Installation and Package ManagementДЎ03.6 Modify process execution prioritiesДЎ03.7 Search text files using regular expressions 101.1 Determine and configure hardware settingsДЎ01.3 Change runlevels / boot targets and shutdown or reboot system

Lsusb command not found