In article <MPG.19c9b283a02f17a198ca36@news.free.fr>,
Emmanuel Florac <eflorac@imaginet.fr> wrote:
>Dans article <bjo2sk$3cg$1@news.cs.tu-berlin.de>, js@cs.tu-berlin.de
>disait...
>> Cpio may create tar archives and star may also be told to reset the
>> access time.
>
>Sure, and GNU tar too. However stock solaris tar can't.

GNU tar can't really, it always at least clears the nanoseconds.....

>> Star may even do this without setting ctime if you are a super user on
>> Solaris.
>>
>
>star is a fine tool. Last time I checked it didn't support files bigger
>than 4GB, though.

There never has been a 4 GB limit.

So you did either check a really long time ago and don't remember correctly
or you just did a mistake.

--
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
js@cs.tu-berlin.de (uni) If you don't have iso-8859-1
schilling@fokus.fraunhofer.de (work) chars I am J"org Schilling
URL: http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily

I want to write a small text file (about 200 bytes) to the
beginning of a tape. Then I write several partitions of the disk to
the same tape. Some time later, I want to read back the text file and
the partitions on the tape.
The command to write is (ignoring error checking):
e.g.
mt -f /dev/rmt/0cn rewind
tar cvf /dev/rmt/0cn file1
ufsdump 0uf /dev/rmt/0cn /
ufsdump 0uf /dev/rmt/0cn /usr
....

Some time later, to read back the data:
mt -f /dev/rmt/0cn rewind
tar xvf /dev/rmt/0cn file1
ufsrestore rf /dev/rmt/0cn
ufsrestore rf /dev/rmt/0cn
....

Darren Dunham <ddunham@redwood.taos.com> wrote in message news:<2GK7b.3002$M87.1180@newssvr25.news.prodigy.c om>...
> In comp.unix.solaris TCMa <ma77777777772000@yahoo.ca> wrote:
>
> It's not entirely clear to me what you intend from your posting, but I
> wanted to verify that you're not wanting to "write" to the beginning of
> the tape and then "read" anything after that, correct?
>
> Writing to the beginning of the tape will effectively erase the tape.
> You may already understand that, but I wanted to be certain.

In article <MPG.19ca48a04d0f4c3398ca37@news.free.fr>,
Emmanuel Florac <eflorac@imaginet.fr> wrote:
>Dans article <bjob0l$ce1$1@news.cs.tu-berlin.de>, js@cs.tu-berlin.de
>disait...
>> >
>> >Sure, and GNU tar too. However stock solaris tar can't.
>>
>> GNU tar can't really, it always at least clears the nanoseconds.....
>>
>
>Yes, and it change ctime.

Star keeps the nanoseconds and if you are super user, it does not touch ctime.


>> >star is a fine tool. Last time I checked it didn't support files bigger
>> >than 4GB, though.
>>
>> There never has been a 4 GB limit.
>>
>> So you did either check a really long time ago and don't remember correctly
>> or you just did a mistake.
>
>I checked 2 years ago on Linux (32 bits). That may be a 32 bits
>limitation.

2 years ago, star already was large file aware.....

This has nothing to do with 32 vs 64 bits. Although a compilation in 64 bit mode
would have lifted the 2 GB file limit but there is more.....

--
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
js@cs.tu-berlin.de (uni) If you don't have iso-8859-1
schilling@fokus.fraunhofer.de (work) chars I am J"org Schilling
URL: http://www.fokus.fraunhofer.de/usr/schilling ftp://ftp.berlios.de/pub/schily

In comp.unix.solaris TCMa <ma77777777772000@yahoo.ca> wrote:
> I want to write a small text file (about 200 bytes) to the
> beginning of a tape. Then I write several partitions of the disk to
> the same tape. Some time later, I want to read back the text file and
> the partitions on the tape.

Okay. That'll work.

Just checking.

--
Darren Dunham ddunham@taos.com
Unix System Administrator Taos - The SysAdmin Company
Got some Dr Pepper? San Francisco, CA bay area
< This line left intentionally blank to confuse you. >

Dans article <bjpfrk$mpk$1@news.cs.tu-berlin.de>, js@cs.tu-berlin.de
disait...
> >
> >Yes, and it change ctime.
>
> Star keeps the nanoseconds and if you are super user, it does not touch ctime.
>

Hey Joerg, nothing personal, I know star rocks

> This has nothing to do with 32 vs 64 bits. Although a compilation in 64 bit mode
> would have lifted the 2 GB file limit but there is more.....
>

Actually at that time I tested with 9GB files. So may the limit have been
4GB, or 8GB?

--
Quis, quid, ubi, quibus auxiliis, cur, quomodo, quando?