how to add existing datastore to PBS?

O

onlineapps

Well-Known Member
Jan 21, 2020
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hi, i do a test, install first time pbs, make OS backup to my external drive.
but, after fresh install PBS i cannot add my external drive to PBS again, how to do it correctly? without formating and other actions that can destroy my data.
 
just add a systemd .mount unit or /etc/fstab entry for it (to make it get mounted at boot).
 
OK thanks for confirmation.
a new button "Add existing Datastore" in gui will be nice, with form field like :
Device : /dev/sdx or better with a scrolldown menu to list current /dev/disk/by-uuid but with a manual entry possible
Datastore id : eg: pbs-usb-hdd
"Add existing Datastore"
a popup if mount path doesn't contain .chunks
in case of emergency, this option help to relax.
keep up good job.
 
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yes, very need button, to add exsting datastore, because for this, i cannot use pbs :( because i'm afraid that after reinstall pbs, i can use my precedent backups and connect my existing drive without lose my data.
 
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connected201 said:
yes, very need button, to add exsting datastore, because for this, i cannot use pbs :( because i'm afraid that after reinstall pbs, i can use my precedent backups and connect my existing drive without lose my data.
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simply save the datastore config file (/etc/proxmox-backup/datastore.cfg), and if necessary, any config file responsible for making the mount point available. when restoring on a new PBS system, put those two files back in place, reboot, and everything will be there as long as the storage (disk, NFS export, ZFS pool, ...) backing your datastore is available.
 
fabian said:
simply save the datastore config file (/etc/proxmox-backup/datastore.cfg), and if necessary, any config file responsible for making the mount point available. when restoring on a new PBS system, put those two files back in place, reboot, and everything will be there as long as the storage (disk, NFS export, ZFS pool, ...) backing your datastore is available.
Click to expand...
this is not production ready, because pbs can down, without option to restore. End user don't want make this manipulation with console or copy files, end user want to make all operations using web interface!.
 
hi again, i tried to add existing datastore, but i get error:
Code: 
root@pbs1:~# proxmox-backup-manager datastore create backup /mnt/hdd
TASK ERROR: unable to create chunk store 'backup' subdir "/mnt/hdd/.chunks" - EEXIST: File exists
Error: task failed (status unable to create chunk store 'backup' subdir "/mnt/hdd/.chunks" - EEXIST: File exists)
 
i made this: simply save the datastore config file (/etc/proxmox-backup/datastore.cfg):
file content from PBS backup:
datastore: backup
comment
gc-schedule daily
path /mnt/hdd
prune-schedule daily
error that i get after restore this content to PBS and reboot PBS:
1710076250940.png
but in original file, i don't have section properties!
 
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fabian said:
simply save the datastore config file (/etc/proxmox-backup/datastore.cfg), and if necessary, any config file responsible for making the mount point available. when restoring on a new PBS system, put those two files back in place, reboot, and everything will be there as long as the storage (disk, NFS export, ZFS pool, ...) backing your datastore is available.
Click to expand...
this method not working
 
please double check your datastore.cfg! either remove the comment lines, or ensure there is a space after the "comment" part.
 
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fabian said:
please double check your datastore.cfg! either remove the comment lines, or ensure there is a space after the "comment" part.
Click to expand...
hi, i deleted comment line and problem was solved, thanks a lot, but it's very strange solution, anyway, thanks for help for all.
 
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