ibressler

MDM Profiles on macOS

Notes: From Zeno Popovici with edits & tested on a M1 macbook with Ventura (macOS 13).

In macOS you can check the MDM status with the following command in a Terminal:

profiles status -type enrollment

Non-removable MDM profiles cannot officially removed without doing a full system wipe

ibressler

Add LUKS2 support to GRUB bootloader UEFI image

• Assuming a Linux live or rescue system is booted and the new soon-to-be root encrypted partition is accessible on an NVMe drive, 2nd partiton (/dev/nvme0n1p2).
• The EFI partition is the first on the device (/dev/nvme0n1p1).
• There is no extra /boot partition since it should be encrypted as well and is included in the partition mounted as root / later.
• The following requires root privileges, a preceeding sudo -i is assumed.

Inspired by: https://askubuntu.com/questions/1397826/default-embedded-modules-in-bootx64-efi-grubx64-efi-and-mmx64-efi/1466507#1466507

1. Get chroot

ibressler

Setup Python on Windows for unprivileged non-admin users and replacing Anaconda

• Uses a recent Miniforge including mamba and the conda-forge channel and is a recommended replacement of the Anaconda distribution which ships a buggy and unreliable package manager (conda)
• side-effect: Its published under BSD-style license, no trouble with individual vs. corporate use

Install mamba

1. Download the latest installer from the releases page. The windows installer is often hidden behind the show all assets button and the file name should be something like Miniforge3-x.y.z-1-Windows-x86_64.exe.
2. Installation should work for an unprivileged user inside their user directory or in the AppData\Local subdirs, for example. In tests it worked with anti-virus enabled but this depends on the restrictiveness of the AV settings, of course.

ibressler

# This file exists so you can easily regenerate your project.
# (last working commit on Sep.9: f47a8cff4)
#
#    cookiecutter --overwrite-if-exists --config-file=.cookiecutterrc gh:ionelmc/cookiecutter-pylibrary --checkout f47a8cff4

default_context:

    # Verbose project name, used in headings (docs, readme, etc).
    project_name:              'Jupyter Analysis Tools'
    project_short_description: 'Common Python helpers used in data analysis notebooks (.ipynb) with GIT'

ibressler

#!/bin/sh
# derived from https://www.ddnss.de/info.php
# To be stored in /etc/dhcp/dhclient-exit-hooks.d/99_ddnss_update
# Updates the specified subdomain $HOSTNAME with the current IP address.

UPDATE_KEY="<your update key displayed in the dashboard>"
HOSTNAME="<your domain name with ddnss>"
DDNSS_PATH="/var/opt/ddnss" # use a directory which survives a reboot
ALLHOST="" # 'all' for updating all hosts in the account

ibressler

for fn in *.JPG; do
    echo "=> $fn"
    # get the timestamp from exif, format it accordingly
    ts=$(exiv2 -g DateTimeOriginal $fn | awk '{ts=$(NF-1)"_"$NF; gsub(":","",ts); print ts}')
    # retrieve the base name as well
    basen=${fn%.*}
    # rename the image, append its original name
    mv -i "$fn" "${ts}_$basen.jpg"
    # check if there is video file with the same name (live mode)
    if [ -f "$basen.MOV" ]; then

ibressler

fn="$1"
echo "fn: $fn"
[ -f "$fn" ] || exit 1
str="$(exiv2 -p a "$fn" 2>&1 | grep -a Exif.Image.DateTime | grep -a -o '2019:.*$')"
#echo "'$str'"
# fix datatime first
exiv2 -M"set Exif.Image.DateTime $str" "$fn"
# extract all readable metadata (to .xmp file)
exiv2 -eaX "$fn"
# delete all metadata

ibressler

# as per https://stackoverflow.com/q/10450120
# PDFSETTINGS: http://milan.kupcevic.net/ghostscript-ps-pdf/
gs -dPDFSETTINGS=/ebook -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -sOutputFile=test.pdf "$INFILE"

ibressler

#!/bin/dash
# Creates a standalone core image with grub to be started by EFI.
# It complements the excellent cryptroot tutorial at
# https://community.linuxmint.com/tutorial/view/2061
# for grub on BTRFS inside LVM inside LUKS.
#
# It initiates decryption of the root device which contains
# LVM with BTRFS on the root volume where grub is installed.
# Therefore, it allows to load grub from an LUKS encrypted BTRFS
# root file system.

ibressler

diff --git a/src/emc/motion/command.c b/src/emc/motion/command.c
index da081d4..58cd81d 100644
--- a/src/emc/motion/command.c
+++ b/src/emc/motion/command.c
@@ -1026,7 +1026,7 @@ void emcmotCommandHandler(void *arg, long period)
                 emcmotStatus->atspeed_next_feed = 1;
             }
 	    /* append it to the emcmotDebug->coord_tp */
-	    tpSetId(&emcmotDebug->coord_tp, emcmotCommand->id);
+//	    tpSetId(&emcmotDebug->coord_tp, emcmotCommand->id);