kopia

Create repository

Create repo

kopia repository create filesystem --no-check-for-updates --ecc=REED-SOLOMON-CRC32 --ecc-overhead-percent=5 --encryption=AES256-GCM-HMAC-SHA256 --path '/mnt/kopia-backup/kopia'

Validate provider

kopia repository validate-provider

Show status

kopia repository status --json | jq

Keep all snapshots forever

kopia policy set /mnt/nas --keep-latest=0 --keep-hourly=0 --keep-daily=0 --keep-weekly=0 --keep-monthly=0 --keep-annual=0

Ignore file pattern

kopia policy set /mnt/nas --add-ignore 'lost+found'

List policies

kopia policy list

Show policies

kopia policy show /mnt/nas

Disable automatic maintenance

kopia maintenance set --enable-quick=false --enable-full=false

New snapshot

Connect

kopia repository connect filesystem --no-check-for-updates --path '/mnt/kopia-backup/kopia'

Create snapshot

kopia snapshot create /mnt/nas/

List snapshots

kopia snapshot list --all --storage-stats

Content stats

kopia content stats

Blob stats

kopia blob stats

Inspect snapshot

List files in snapshot

kopia ls -l kbdae7e8xxx

Mount specific snapshot

kopia mount kbdae7e8xxx /tmp/mnt-kopia/

Mount all

kopia mount all /tmp/mnt-kopia/

Validate

Full validation

kopia snapshot verify --verify-files-percent=100 --file-parallelism=10 --parallel=10

Unfortunately, the error correction is still not stable for over a year now.

This post mentions the project is not actively maintained. :(

Full list of commands to create a new snapshot:

lsblk --fs --perms --paths
sudo mount /dev/sdb1 /mnt/kopia-backup/
kopia repository connect filesystem --no-check-for-updates --path '/mnt/kopia-backup/kopia/'
kopia snapshot create /mnt/nas/
kopia snapshot list --all --storage-stats
sync
sudo umount /mnt/kopia-backup
sudo udisksctl power-off -b /dev/sdb