Mick <michaelkintz...@gmail.com> wrote:
> Hi All,
>
> I do not seem to be able to run star with the correct options despite some
> experimenting ... and was hoping you could correct my errors.
Try the command lines from the example section in the man page ;-)
> The fs is shown to be 1.1G large:
> ========================================================
> # df -h
> Filesystem Size Used Avail Use% Mounted on
> ...
> /dev/hda5 5.8G 1.1G 4.5G 20% /media/hda5
> ========================================================
>
> I want to save the backup on a USB drive on /media/sda1. Therefore I ran
> star
> as root like this:
>
> # cd /dev/sda1
> # star -xattr -H=exustar -c -f hda5_root1.star /media/hda5 -C /media/sda1
This is a useless command line as -C /media/sda1 is executed after archiving
/media/hda5.
> After a lot of messages like these:
> ========================================================
> star: No such file or directory. Cannot listxattr
> for '/media/hda5/usr/sbin/dumpfilter'.
> star: No such file or directory. Cannot listxattr
> for '/media/hda5/usr/sbin/ethtool'.
> star: No such file or directory. Cannot listxattr
> for '/media/hda5/usr/sbin/traceroute6'.
> star: No such file or directory. Cannot listxattr for '/media/hda5/usr/tmp'.
> star: No such file or directory. Cannot listxattr
> for '/media/hda5/usr/share/firstboot/modules/rootpassword.py'.
> ========================================================
There seems to be a problem with xattr support on your system.
Unfortunately, Linux allows you not to install a sufficiently complete OS
basesystem.
Make sure that not only star supports xattrs.
> ... it eventually completes. What puzzles me is the size of the star
> archive,
> which compared to a vanilla tar archive is massive:
> ========================================================
> # ls -la /media/sda1
> total 17294256
> drwxr-xr-x 2 knoppix knoppix 4096 Feb 1 13:01 .
> drwxr-xr-x 14 root root 0 Feb 1 11:45 ..
> -rw-r--r-- 1 root root 932474880 Dec 6 13:50 hda5_root.star
> -rw-r--r-- 1 root root 867123200 Dec 6 13:26 hda5_root.tar
> -rw-r--r-- 1 root root 14486097920 Feb 1 13:13 hda5_root1.star
> -rw-r--r-- 1 root root 940288000 Feb 1 10:42 hda5_root1.tar
> ...
> ========================================================
>
> Is this difference in size between the hda5_root1.tar and hda5_root1.star
> expected? I also show above the previous back up I did as a comparison
> (although I cannot recall exactly what options I chose to run star with).
As I don't know what's in both files, I cannot comment.
If you create a tar archive with POSIX.1-2001 extensions, you get at least
1kB of additional meta-data per archived file.
GNU tar does not support Linux specific extensions...
Jörg
--
EMail:jo...@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
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