Rsnapshot knows about LVM volumes, and can create LVM snapshot volumes (not to be confused with virtual machine snapshots, but both use the idea of copy-on-write, ), so that the system can be captured without stopping the machine. I have an external machine contact other machines periodically, say every 4 hours, then do an rsnapshot to capture changed files, rotating to daily, weekly, monthly backups. Requires learning about virtual machines. I have used VMWare and Virtualbox for that. After a reboot and few days of smooth running, I fold the snapshot into the running system. ![]() ![]() I usually do a snapshot just before a big update. This allows me to do a snapshot, which can restore an entire system in less than 5 minutes (and usually less). For example, I use virtual machines most of the time. So I use a number of strategies to reduce risk. ![]() file.01, file.02, etc).Ģ) Balance extra resources with risk of losing one's time.ģ) It's a rite of passage to destroy something valuable. This could also be considered a valuable (but difficult) learning experience:ġ) Have a backup, even if minor (e.g. Testdisk.x86_64 : Tool to check and undelete partition, PhotoRec recovers lost Code : extundelete.x86_64 : An ext3 and ext4 file system undeletion utility
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