94 lines
3.6 KiB
Markdown
94 lines
3.6 KiB
Markdown
---
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keywords:
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- IT
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-
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---
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## Backup odroid NAS
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### onsite backup
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```
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/dev/mmcblk0
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http://www.fsarchiver.org/Main_Page
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Full Backup, wöchentlich
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dd if=/dev/mmcblk0 bs=1M |pv | dd of=$backupDir/backup.img
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MBR/EBR backup
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sudo apt-get install sfdisk
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sudo sfdisk -d /dev/mmcblk0 > $backupDir/partition_table.txt
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sudo sfdisk /dev/mmcblk0 < $backupDir/partition_table.txt
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#backup bootloader
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#get first partition sector
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sudo sfdisk -l /dev/mmcblk0
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#backup bootloader
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sudo dd if=/dev/mmcblk0 of=$backupDir/bootloader.bin bs=512 count=$BeginSektor
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#restore bootloader
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sudo dd if=$backupDir/bootloader.bin of=/dev/mmcblk0 bs=512 skip=1 seek=1
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#Bootstrap restore
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sudo dd if=$backupDir/bootloader.bin of=/dev/mmcblk0 bs=446 count=1
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#backup ext4 partition while mounted
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$ sudo fsarchiver -o -v -A -j 4 savefs $backupDir/partition_2.fsa /dev/mmcblk0p1
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```
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### offline backup
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```
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# copy 'empty' blocks to preserve partition table, bootloader, second bootloader..
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sudo dd if=/dev/mmcblk0 of=/dev/sdc bs=512 count=8192
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# backup partition table separately
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sudo sfdisk -d /dev/mmcblk0 > partition_table.txt
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# restore partition table to match partitions uuids, patch different partitions size! (like whole sectors minus beginning sector)
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sudo sfdisk /dev/mmcblk0 < partition_table.txt
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#restore root partition after offsite image backup
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sudo partclone.ext4 -d2 -b -s /dev/loop0p1 -o /dev/sdc1
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```
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/etc
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-inkrementelles Backup
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-merge Backups (welche Kriterien)
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-verschlüsselt (ssl keys)
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http://dar.linux.free.fr/doc/mini-howto/dar-differential-backup-mini-howto.en.html#the-backup-strategy
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dar -c /mnt/backup/etc_initial --compression=lzo -s 50M -M -R /etc --hash sha1 --user-comment "%d: %c" -Z "*.gz" -Z "*.bz2" -Z "*.zip" -Z "*.png"
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dar -C /mnt/backup/etc_`date -I`.cat /mnt/backup/etc_initial --user-comment "%d: %c"
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dar -c /mnt/backup/etc_initial --compression=lzo -s 50M -M -R /etc --hash sha1 --user-comment "%d: %c" -Z "*.gz" -Z "*.bz2" -Z "*.zip" -Z "*.png" -A /mnt/backup/etc_initial
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/var/*
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-incrementelles Backup
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-merge Backups (welche Kriterien)
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-verschlüsselt (ssl keys)
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/home/*
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-syncthing
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--Fullbackup
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--täglich Datenbank und config sichern
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-verschlüsselt (ssl keys)
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/root
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--Fullbackup
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-verschlüsselt (ssl keys)
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Nextcloud
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--täglich Datenbank Dump und cloud_data
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-verschlüsselt
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## duplicati backend
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### client
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the data source aka client holds a local database to be fast. this db does not get copied to the remote target. the remote target only contains `dlist.zip.aes`, `dindex.zip.aes` and `dblock.zip.aes` files.
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`duplicati-cli repair {filepath}`
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### .bashrc
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```
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alias hddapm='for dev in /dev/sd?; do echo -n "$dev : "; hdparm -B $dev | grep -E "APM"; done; echo ""'
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alias hddlongresult='for dev in /dev/sd?; do echo -n "$dev : "; smartctl -a -n standby $dev | grep "# 1"; done; echo "";'
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alias hddlongtest='for dev in /dev/sd?; do echo -n "$dev : "; smartctl -t long $dev | grep "complete after" ; done; echo ""'
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alias hddspindown='for dev in /dev/sd?; do echo -n "$dev : "; hdparm -y $dev; done;'
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alias hddstatus='for dev in /dev/sd?; do echo -n "$dev : "; smartctl -i -n standby $dev | grep -E "ACTIVE|IDLE|STANDBY"; done; echo ""'
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alias l='ls $LS_OPTIONS -lA'
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alias ll='ls $LS_OPTIONS -l'
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alias ls='ls $LS_OPTIONS'
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alias lsuuid='lsblk -o +uuid,name'
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alias scrubstatus='for dev in /srv/dev-disk-by-label*; do echo -n "$dev : "; btrfs scrub status $dev | grep -E "Status|ETA"; done; echo ""'
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alias smartstatus='for dev in /dev/sd?; do echo -n "$dev : "; smartctl -a -n standby $dev | grep "in_progress" ; done; echo ""'
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alias snapraidscrub='snapraid -o 10 -p 100 scrub'
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alias update='apt update && apt -t bullseye-backports dist-upgrade'
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``` |