Additions to Crontab Reverting

Thanks, this is the only solution worked for me. I basically created a script on a hard drive (/mnt/HD/HD_a2/update-cron.sh) which internally adds some lines to root’s cron file and reloads crontab. This way i could add different reoccuring jobs, which were not deleted after restart:

#!/bin/sh
echo "0 3 * * * /mnt/HD/HD_a2/backup/download-all-backups.sh" >> /var/spool/cron/crontabs/root
echo "*/1 * * * * touch /tmp/hello-world.txt" >> /var/spool/cron/crontabs/root
crontab /var/spool/cron/crontabs/root

The line added to /mnt/HD/HD_a2/Nas_Prog/Transmission/init.sh was:

/mnt/HD/HD_a2/update-cron.sh

Hope it helps.