Hi Doug, Try running the following and posting the output: su -s /bin/bash bacula ls -dl /dev/nst* /dev/sg* groups mtx -f /dev/sg3 status exit
That will switch you to the bacula user, check the permissions of the various devices, and attempt to run the mtx command as the bacula user.
On 2022-09-16 09:37, Doug Eubanks wrote:
Good morning, thank you for your reply. The bacula user is definitely in the tape group. root@dl160g11:/opt/bacula/bin# mtx -f /dev/sg3 status Storage Changer /dev/sg3:1 Drives, 8 Slots ( 0 Import/Export ) Data Transfer Element 0:Full (Storage Element 1 Loaded):VolumeTag = ABT001L7 Storage Element 1:Empty Storage Element 2:Full :VolumeTag=2018-2L7 Storage Element 3:Full :VolumeTag=ABT005L7 Storage Element 4:Full :VolumeTag=ABT012L7 Storage Element 5:Empty Storage Element 6:Empty Storage Element 7:Empty Storage Element 8:Full I do believe this is probably a permission issue, but I'm not sure what the correct way to resolve it is. Doug On Thu, Sep 15, 2022, at 12:04 PM, Charles Tassell wrote:Hi Doug, Is bacula running as root? On most setups it runs as the bacula user, so you would need to make sure that that user is in the "tape" group and has rw access to /dev/nst0. On 2022-09-15 12:17, Doug Eubanks via Bacula-users wrote:Hello! I'm setting up an HP autochanger with an LTO-7 drive with Bacula on Ubuntu 22.04 server at home. I've been able to run mt and mtx commands successfully to erase a tape and change the loaded tape. I've installed Bacula 13.0.1 using apt-get from the repo. I also installed Bacularis for a GUI, but that isn't relevant to this issue. I've searched Google and the mailing list archive and while I've seen others experiencing the same problem from over a decade ago, I haven't found a fix. I'm not sure if I am missing some udev rules or if it's something else. When I try to run the btape test, I get this output. ./btape -c ../etc/bacula-sd.conf /dev/nst0 Tape block granularity is 1024 bytes. btape: butil.c:295-0 Using device: "/dev/nst0" for writing. btape: btape.c:477-0 open device "LTO-7" (/dev/nst0): OK *test === Write, rewind, and re-read test === I'm going to write 10000 records and an EOF then write 10000 records and an EOF, then rewind, and re-read the data to verify that it is correct. This is an *essential* feature ... btape: block.c:291-0 [SE0201] Write error at 0:0 on device "LTO-7" (/dev/nst0) Vol=. ERR=Input/output error. 15-Sep 15:11 btape JobId 0: Error: block.c:291 [SE0201] Write error at 0:0 on device "LTO-7" (/dev/nst0) Vol=. ERR=Input/output error. 15-Sep 15:12 btape JobId 0: Error: Backspace record at EOT failed. ERR=Input/output error btape: btape.c:1156-0 Error writing block to device. Here's my bacula-sd.conf configuration: Device { Name = "LTO-7" Description = "LTO-7" MediaType = "LTO-7" DeviceType = "Tape" ArchiveDevice = "/dev/nst0" AutomaticMount = yes Autochanger = yes RemovableMedia = yes; RandomAccess = no; AlwaysOpen = yes; ChangerDevice = "/dev/sg3" ChangerCommand = "/opt/bacula/scripts/mtx-changer %c %o %S %a %d" AlertCommand = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'" MaximumFileSize = 100G LabelType = "Bacula" LabelMedia = yes } Autochanger { Name = "LTO-7 Autochanger" Description = "LTO-7" Device = "LTO-7" ChangerDevice = "/dev/sg3" ChangerCommand = "/opt/bacula/scripts/mtx-changer %c %o %S %a %d" } Any assistance would be greatly appreciated, Doug _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-usersSincerely, Doug Eubanks http://www.dougeubanks.com Amateur Radio Operator: K1DUG North Carolina Emergency Medical Technician AWS Certified Cloud Practitioner (919) 901-0705 (Cell - Preferred) (919) 679-1725 (Home)
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