Re: Recopying /home/myusername and getting it to work by copy and paste
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"tv.debian@googlemail.com" <tv.debian@googlemail.com> writes:
> On 15/08/2012 10:05, Merciadri Luca wrote:
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>>
>> Hi,
>>
>> I've got a backup of /home on some external HDD. Let us
>> consider that one of my internal HDDs, more precisely the one containing
>> /home, fails. I then need to replace it. If I manage to make the
>> external HDD internal, and change /etc/fstab consequently, would it work
>> without any issues? When should I change /etc/fstab? Would the path to
>> the `new internal HDD' (the one which was precedently external) be the
>> same as the path to the old one (the one that failed)?
>>
>> Thanks.
>> - --
>> Merciadri Luca
>
> Hi, if your backup consists in a copy of folders/files from your
> /home/username and respects the standard hierarchy (backup should
> contains a "username" folder with all your files and folder in it),
> and if the copy method and the filesystem preserved the permissions
> (and eventually other attributes), you can simply plug the disk in,
> change the backup drive partition UUID to the one used in the fstab
> and be done with it.
>
> Boot your system in single user or from a live-cd, or any other linux
> system at hand, plug your external backup drive, read the UUID used
> for /home in your fstab and apply it to the external drive partition
> (unmounted):
>
> tune2fs -U UUID-from-the-fstab /dev/address-of-backup-drive-partition
>
> It works with labels too, use option "-L" instead of "-U".
>
> man tune2fs is your friend.
>
> Of course you can do it the other way round, change your fstab to the
> new drive partition UUID or label. If the filesystem is different from
> the original partition you need to update the fstab accordingly in any
> case.
>
> If you don't use UUID's or labels in fstab, then anything can
> happen. It's hard to predict the name your new drive will show up
> with.
>
> Hope it helps.
Thanks for both messages.
- --
Merciadri Luca
See http://www.student.montefiore.ulg.ac.be/~merciadri/
- --
Failure is not falling down, you fail when you don't get back up.
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