← cd ~/blog

less full-backup-using-dd-shell-command.md

Full backup using dd shell command

#Crumbs archive

# historical archive — written years ago, kept as it was. Some info is dated.

If you want to copy an entire disk, or a single partition to another medium, all you need to do is type the following command

dd if=/dev/sda of=/dev/sdb1 bs=64K conv=noerror,sync status=progress

If, on the other hand, you want to create an image file of a partition or an entire disk, it’s enough to use:

dd if=/dev/sda conv=sync,noerror bs=64K status=progress | gzip -c > /PATH/backup_image.img.gz

To restore in the case of a compressed image file of an entire disk

gunzip -c /PATH/backup_image.img.gz | dd of=/dev/sda

grep -rl 'same thread' ~/blog

$ less backup-simple-rsync-bash-script

Backup: simple rsync bash script

With the following script you can backup entire system or one directory. The script provides incremental backup and a log file for each backup session…

2017 #backup#bash#directory
$ less iptables-remove-duplicate-rules

iptables: remove duplicate rules

It can happen that the rules you manage with iptables suddenly grow into the hundreds. Some of them, however, might be simple…

2018 #awk#firewall#iptables
$ less tar-extract-file-examples

tar: extract file examples

Some of my sites have by now reached considerable sizes, and hunting through backup archives for a single file is becoming increasingly…

2017 #archive#extract#linux