Alessandro Selli wrote: >>> dbus: machine-id, session.conf, system.conf >>> I see it very often that admins do not understand the role of the >>> machine-id when cloning VMs. > > This could be a reason to have them in LPIC-304, Virtualization (if they > are not there already). But why in LPIC-1?
Depends. A lot of junior admins deal with recent builds. Initial investigation and basic identification of a probably cause can be a junior admin responsibility, at least from an initial troubleshooting aspect. There are many concepts at LPIC-1, 2 and 3, not just at 2 or 3. I could see the case where something like machine-id could be at LPIC-1, while LPIC-2 and/or LPIC-3 addresses deeper. > What should an LPIC-1 candidate know about it? I cannot see anything in > /etc/pam.d/polkit-1 and /etc/polkit-1/rules.d/50-default.rules a sysadmin > might need to customize in a typical environment. > Concept of UUID and it's use is already in LPI-201: > Topic 203: Filesystem and Devices > 203.1 Operating the Linux filesystem > Key Knowledge Areas: > Use of UUIDs for identifying and mounting file systems > Why moving it into LPIC-1? Yeah, this is a tough one. I, for one, wish everyone knew about about both 'lsblk' (which just reports what is already in /sys/block, and doesn't require root) and 'blkid'**(which requires root, as it queries block devices directly), in addition the kernel device mapper already already pre-creating various links under /dev/disk/. We all see the need for detail in LPIC-2, but I also could understand an argument for LPIC-1. There's not a Fedora/RHEL system out there that doesn't have at least one (1) UUID reference these days for the ESP (/boot/efi) and/or Boot (/boot).** - bjs **DISCLAIMER: I'm biased because of negative feedback from major Red Hat customers years ago (circa 2008-2009) when Red Hat started to use UUID, I argued, and eventually won, the inclusion of the following lines in all Fedora-based apps (which I wrote, eventually pairing it down to 2 lines) ... # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info -- Bryan J Smith - http://www.linkedin.com/in/bjsmith E-mail: b.j.smith at ieee.org or me at bjsmith.me _______________________________________________ lpi-examdev mailing list [email protected] http://list.lpi.org/cgi-bin/mailman/listinfo/lpi-examdev
