full system backup

Patrick Boutilier boutilpj at ednet.ns.ca
Sat Jul 3 19:56:46 UTC 2004



Hannes Mayer wrote:
> Edwin Dicker wrote:
> 
>> Hi All,
>>
>> When I want to perform a full system backup to tape, Do I need to backup
>> /sys/* as well ???
>> I notice that my DLT is quite slow when performing the backup of the 
>> /sys/*
>> files.
>>
>> I get these kind of messages :
>> cpio: File ./sys/class/scsi_host/host0/host_busy shrunk by 4094 bytes,
>> padding with zeros
>> ./sys/class/scsi_host/host0/host_busy
>> cpio: File ./sys/class/scsi_host/host0/unique_id shrunk by 4094 bytes,
>> padding with zeros
>>
>> I suspect that these files are all created when booting the system which
>> means that they do not need to be backed-up
>> Am I suspecting right or wrong ?
> 
> 
> Edwin,
> 
> /sys, /proc and /dev are system directories and you don't need to backup
> them, since they're recreated by the system anyway on every reboot.
> Backing up those would make no sense, cause of the former reason.
> Actually those are not regular files, but virtual files in the virtual 
> file-system.

/dev does not get recreated on reboot .

However you can get most dev entries back by installing the dev rpm. If 
you have lots of custom devices in dev it wouldn't hurt to back them up.


> 
> Cheers,
> Hannes.
> 
> 





More information about the fedora-list mailing list