Creating and burning ISO files on Debian

Create ISO from CD / DVD drive:
IF is Input File, OF is Output File:

Burn ISO:

Alternative
If growisofs tells you “:-( /dev/sr0: media is not recognized as recordable DVD: 9”) it’s possible to use wodim instead:

It will pick up on your DVD / CD writer automagically.

Alternative 2: Make a bootable USB drive
Be a friend of nature – use USB rather than optical media:
IF is Input File (your ISO), OF is Output File (your USB memory). Make sure to just specify the device name – “/dev/sdc” for example and not the partition – “/dev/sdc1” (since we’re overwriting that anyway)

Linux screen control

xrandr alone will give you available resolutions for each display attached
xrandr

Some examples:
xrandr –output eDP –mode 1280×720
xrandr –output HDMI1 –mode 1280×720
xrandr –output -eDP1 –mode 1280×720
xrandr –output HDMI2 –mode 1280×1024

Dual-monitor setup where the desktop is extended to the right of the main PC monitor
xrandr –output HDMI1 –mode 1920×1200 –right-of eDP1

 

Various handy commands for interacting with a PowerEdge C BMC

bmc -H 10.1.1.64 -U jonas -P jonas allinfo
bmc -H 10.1.1.64 -U jonas -P jonas pecagent_health
bmc -H 10.1.1.64 -U jonas -P jonas bmc_hostname
bmc -H 10.1.1.64 -U jonas -P jonas bmc_hostname get
bmc -H 10.1.1.64 -U jonas -P jonas psus_required
bmc -H 10.1.1.64 -U jonas -P jonas psus_redundant
bmc -H 10.1.1.64 -U jonas -P jonas psus_seen
bmc -H 10.1.1.64 -U jonas -P jonas power_draw_node
bmc -H 10.1.1.64 -U jonas -P jonas power_draw_chassis
bmc -H 10.1.1.62 -U jonas -P jonas platform