About backing up / restoring Arch
Hi ,
My Arch X86_64 is installed onto a SSD, it's about 3 years old and I'm just moved to the mix systemd / sysV
My purpose is to refresh the perf of the SSD with a secure erase (hdparm), however I don't feel like reinstalling the whole Arch.
So I'm thinking about 2 solutions :
1- tar of the whole root fs; refresh SSD ; untar the root fs (included /etc)
2- tar /etc "only" ; brand new Arch install ; untar /etc
( btw, /home is on another HDD )
3- a better way to save and restore all my Arch parameters ?
Thanks for you advices.
blackout23 wrote:
I can recommend rsync aswell. I have not had to recover from my backup yet but creating it was very easy. First I tried to back it up to my 1 TB NTFS drive but to no surprise it wasn't able to handle sym links if you just write the files to the partition not into a raw container. What works though if you have a small drive for your system (mine is 128 GB (Arch + Win7) and a big drive you can dd a zipped image of the system drive onto your NTFS drive from within the Live CD/USB enviroment.
Today I recieved an external case for 2.5" hard drives and installed my old laptop hdd (120GB) into it which I replaced with a 64 GB SSD about a year ago. Formated it with ext4 and now it holds the root dir of both my Arch PCs + both drive images. I use about 7 GB of my 64 GB and the zipped dd image came out at 5.1 GB while "dd if=/dev/sda of=/externaldrivemount/backup.img" would have resulted in a 64 GB file.
Appreciate your advices
I'm not familiar with rsync but it looks like a way to handle my backup
I did once a plain backup using tar (none compress) starting from root + usr + lib + home + etc and even dev, excluding off course proc sys. The resulting big tar file was stored into HDD
Then I did a secure erase the SSD with Arch boot CD, with which I also re-parted aligned FS of the SSD
I then just had to untar backup from the mounted HDD
This has worked like a charm especially with a SSD with which I don't think it is good to use any dd command
However, taking into consideration the Time it requires to backup / restore vs install Arch from scratch with brand new features WELL installed. ie Systemd : I wonder if having just a tiny etc directory and some others parameters are not enough ?
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Malma63 wrote:
But what about wht is restored in the app?
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I purchased my MBP back in August of 2009 and it has been virtually flawless since I have bought it. However I have downloaded all kinds of stuff to it and added all kinds of different things to it, I have a pretty large music library and what I would like to do is just back up everything to my external hard drive and wipe the computer clean and start over from scratch.
This is my first Mac and I was curious what the best way to do this would be? Also is it like Windows where it will take hours upon hours to reformat the hard drive etc... Anyone who could suggest how to do this or provide a link with step by step instructions I would greatly appreciate anyone who could help me out with this!!!!You should go out and get a new, now very inexpensive, external hard drive. Preferrably Firewire, but USB2 is ok if you need to save some money.
Use OS X built in TimeMachine. If you choose to go this route, here is Apple's instructions for setting up the new TimeMachine disk, backing up, restoring, etc:
http://support.apple.com/kb/ht1427
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