Tgz Backups

[Merciadri Luca]

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Hi,

I often backup everything of my Debian systems with the tgz utility.

Is it possible to boot a LiveCD, to put the whole content of the tgz
(assuming it is complete) on the partition (assuming there is enough
free space), and to reboot (assuming GRUB is okay)?

I would like to hear others' experience about this.

Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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[Alexey Salmin]

What exactly do you want to get? A working system on a new partition
without the installation process?

Alexey

On Mon, Nov 2, 2009 at 4:58 PM, Merciadri Luca
<Luca.Merciadri@...> wrote:

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> Hash: SHA1
>
> Hi,
>
> I often backup everything of my Debian systems with the tgz utility.
>
> Is it possible to boot a LiveCD, to put the whole content of the tgz
> (assuming it is complete) on the partition (assuming there is enough
> free space), and to reboot (assuming GRUB is okay)?
>
> I would like to hear others' experience about this.
>
> Thanks.
> - --
> Merciadri Luca
> See http://www.student.montefiore.ulg.ac.be/~merciadri/
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> =tzF+
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>
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[Osamu Aoki]

On Mon, Nov 02, 2009 at 11:58:07AM +0100, Merciadri Luca wrote:
> Hi,
>
> I often backup everything of my Debian systems with the tgz utility.
>
> Is it possible to boot a LiveCD, to put the whole content of the tgz
> (assuming it is complete) on the partition (assuming there is enough
> free space), and to reboot (assuming GRUB is okay)?
>
> I would like to hear others' experience about this.

I do not do this type of backup.

But I know these is specific tool to do what you wish.

 mondo http://packages.debian.org/sid/mondo

http://www.debian.org/doc/manuals/debian-reference/ch10.en.html#_backup_utility_suites

Good luck.

Osamu

PS: You may wish to have grub-disk and create grub boot CD.



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[Merciadri Luca]

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Osamu Aoki <osamu@...> writes:

> On Mon, Nov 02, 2009 at 11:58:07AM +0100, Merciadri Luca wrote:
>> Hi,
>>
>> I often backup everything of my Debian systems with the tgz utility.
>>
>> Is it possible to boot a LiveCD, to put the whole content of the tgz
>> (assuming it is complete) on the partition (assuming there is enough
>> free space), and to reboot (assuming GRUB is okay)?
>>
>> I would like to hear others' experience about this.
>
> I do not do this type of backup.
>
> But I know these is specific tool to do what you wish.
>
>  mondo http://packages.debian.org/sid/mondo
>
> http://www.debian.org/doc/manuals/debian-reference/ch10.en.html#_backup_utility_suites
>
> Good luck.

Thanks, Osamu. I knew this tool, and it is pretty useful. My question
was about manual .tgz backups, but I keep your note.

Thanks.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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[Merciadri Luca]

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Alexey Salmin <alexey.salmin@...> writes:

> What exactly do you want to get? A working system on a new partition
> without the installation process?
This looks like a lofty question. I would like to
* install the minimal system,
* use a LiveCD to complete some missing files.

Okay, it is clear that it is always better to install things with
installers, package managers, etc., but the only thing which would not
be done directly, when copying files manually, is the files' linking,
wouldn't it?


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Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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[Γιώργος Πάλλας]

Merciadri Luca wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi,
>
> I often backup everything of my Debian systems with the tgz utility.
>
> Is it possible to boot a LiveCD, to put the whole content of the tgz
> (assuming it is complete) on the partition (assuming there is enough
> free space), and to reboot (assuming GRUB is okay)?
>
> I would like to hear others' experience about this.
>
>  

yes, it is possible. I also keep backup of my system using tar* and I
have at least once successfully restored a working, booting system after
a failure.


* tar use for backup: tar cvSj --exclude=/tmp --exclude=/proc
--exclude=/lost+found --exclude=/dev  --exclude=/sys        
/tmp/backup.tar.bz2     /

and this is what I actually use in order to store the system backup in
4GB encrypted chunks, along with an encrypted index of all the files and
an md5sum checksum of the archive (I love one-liners :-) ):
 time tar cvSj --exclude=/home/gpall/.local/share/Trash --exclude=/tmp
--exclude=/proc --exclude=/lost+found --exclude=/dev --exclude=/mnt
--exclude=/media --exclude=/sys /  2> >(gpg -z 9 -e -r gpall -o
sysbackup-filelist.gpg) | gpg -z 0 -e -r gpall | tee >(split -b 4000m -
sysbackup.tbg.split_) | md5sum > sysbackup.tbg.md5

[Merciadri Luca]

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Γιώργος Πάλλας <gpall@...> writes:

> Merciadri Luca wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Hi,
>>
>> I often backup everything of my Debian systems with the tgz utility.
>>
>> Is it possible to boot a LiveCD, to put the whole content of the tgz
>> (assuming it is complete) on the partition (assuming there is enough
>> free space), and to reboot (assuming GRUB is okay)?
>>
>> I would like to hear others' experience about this.
>>
>>  
>
> yes, it is possible. I also keep backup of my system using tar* and I
> have at least once successfully restored a working, booting system
> after a failure.
>
>
> * tar use for backup: tar cvSj --exclude=/tmp --exclude=/proc
> --exclude=/lost+found --exclude=/dev  --exclude=/sys
> /tmp/backup.tar.bz2     /
>
> and this is what I actually use in order to store the system backup in
> 4GB encrypted chunks, along with an encrypted index of all the files
> and an md5sum checksum of the archive (I love one-liners :-) ):
> time tar cvSj --exclude=/home/gpall/.local/share/Trash --exclude=/tmp
> --exclude=/proc --exclude=/lost+found --exclude=/dev --exclude=/mnt
> --exclude=/media --exclude=/sys /  2> >(gpg -z 9 -e -r gpall -o
> sysbackup-filelist.gpg) | gpg -z 0 -e -r gpall | tee >(split -b 4000m
> -
> sysbackup.tbg.split_) | md5sum > sysbackup.tbg.md5

Nice. How do you restore your system with these archives?

I was using a simpler one:
dpkg --get-selections "*" > MyPackets && tar cvpfz backuptotal.tgz / --exclude=/proc --exclude=/lost+found --exclude=/backuptotal.tgz --exclude=/mnt --exclude=/sys --exclude=/media --exclude=/tmp


Thanks.

- --
Merciadri Luca
First year in civil engineering
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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[Γιώργος Πάλλας]

Merciadri Luca wrote:

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> Hash: SHA1
>
> Γιώργος Πάλλας <gpall@...> writes:
>
>  
>> Merciadri Luca wrote:
>>    
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> Hi,
>>>
>>> I often backup everything of my Debian systems with the tgz utility.
>>>
>>> Is it possible to boot a LiveCD, to put the whole content of the tgz
>>> (assuming it is complete) on the partition (assuming there is enough
>>> free space), and to reboot (assuming GRUB is okay)?
>>>
>>> I would like to hear others' experience about this.
>>>
>>>  
>>>      
>> yes, it is possible. I also keep backup of my system using tar* and I
>> have at least once successfully restored a working, booting system
>> after a failure.
>>
>>
>> * tar use for backup: tar cvSj --exclude=/tmp --exclude=/proc
>> --exclude=/lost+found --exclude=/dev  --exclude=/sys
>> /tmp/backup.tar.bz2     /
>>
>> and this is what I actually use in order to store the system backup in
>> 4GB encrypted chunks, along with an encrypted index of all the files
>> and an md5sum checksum of the archive (I love one-liners :-) ):
>> time tar cvSj --exclude=/home/gpall/.local/share/Trash --exclude=/tmp
>> --exclude=/proc --exclude=/lost+found --exclude=/dev --exclude=/mnt
>> --exclude=/media --exclude=/sys /  2> >(gpg -z 9 -e -r gpall -o
>> sysbackup-filelist.gpg) | gpg -z 0 -e -r gpall | tee >(split -b 4000m
>> -
>> sysbackup.tbg.split_) | md5sum > sysbackup.tbg.md5
>>    
> Nice. How do you restore your system with these archives?
>  

restore?? never thought about that... :-P

restore is easy:
1. live cd boot
2. create partitions and filesystems
3. restore system: cat /media/MYUSBDISK/sysbackup.tbg_split* | gpg -d |
tar xvjS"
4. fix GRUB

PS. I would recommend backup and restoring with something like
Clonezilla. I use my own way because I run a fully encrypted LUKS system
and bit-to-bit copy has a little overhead ;-)

[Merciadri Luca]

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Merciadri Luca <Luca.Merciadri@...> writes:

> Hi,
>
> I often backup everything of my Debian systems with the tgz utility.
>
> Is it possible to boot a LiveCD, to put the whole content of the tgz
> (assuming it is complete) on the partition (assuming there is enough
> free space), and to reboot (assuming GRUB is okay)?
>
> I would like to hear others' experience about this.
>
> Thanks.

Okay, thanks for this easy procedure.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
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