This scenario only happens on SDs which were installed greater then a year ago. The older SD configurations do not play nice with the new ReaR Linux BMR - specifically with extracting the ISO's from the SDs when downloading, thus creating a 0KB iso download.
the data however is still there and the ISO is available on the SD.
PLEASE NOTE - newer SD installs will NOT have this issue
On your SD config file
replace {{****}} to appropriate values below and then restart SD service
Device {
Name = TruncateDevice
Media Type = {{devicename}} #Match other autochanger device media types
Archive Device = {{arhivelocation}} #Match other autochanger device archive paths
LabelMedia = yes # lets Bacula label unlabeled media
Random Access = Yes
AutomaticMount = yes # when device opened, read it
RemovableMedia = no
AlwaysOpen = no
AutoSelect = no
}
Device {
Name = RestoreDevice
Device Type = File
Media Type = {{devicename}}
Archive Device = {{arhivelocation}}
AutomaticMount = yes # when device opened , read it
AlwaysOpen = yes
RemovableMedia = yes
}
Device {
Name = OldRestoreDevice
Device Type = File
Media Type = File
Archive Device = {{arhivelocation}}
AutomaticMount = yes # when device opened , read it
AlwaysOpen = yes
RemovableMedia = yes
}