This is the "restore" tree of Relax-and-Recover
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00-09	initialisation, e.g. copy dev-files needed for external backups progs
10-19	do mounting if necessary (NETFS)
20-29	user interaction scripts, e.g. do restore via 3th party software
30-39	exec pre-exec scripts
40-49	exec the restore itself
50-59	exec the post-exec scripts
60-69	reserved
70-79	umount (NETFS)
80-89	reserved
90-99	finalisation scripts
