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dear all,

i'm new at Linux.

I installed a Suse9.0 Linux for test reason as a dualboot installation!

But the choice of partions was not very smart how it seems!

/dev/hda7 3075 150 2926 5% /
/dev/hda8 157 37 121 24% /boot
/dev/hda9 2056 1282 774 63% /home
/dev/hda11 2565 1088 1478 43% /opt
/dev/hda12 502 35 468 7% /tmp
/dev/hda13 12268 1661 10608 14% /usr
/dev/hda10 3075 117 2959 4% /var

i wanna change the /usr partition to 6Gb instead of 12.
The filesystem is reiser.
It would be great if somebody could give me a step by step description for
the resizing of the /usr partition.

i don't wanna crash this system! ))

thanks!

Greetings Siggi

Siggi <Siggi.Hofstetter@t-online.de> wrote:
> I installed a Suse9.0 Linux for test reason as a dualboot installation!
> But the choice of partions was not very smart how it seems!

It looks fine to me, apart from the lack of a /usr/local.

> /dev/hda7 3075 150 2926 5% /

This is way under used. You only want something like 256MB for /. The
idea is to give it a low profile, so you can back it up easily, and
maintain an extra copy on disk, and expect it not to be hurt by disk
head smashes.

> /dev/hda8 157 37 121 24% /boot

Looks fine, though it's completely unnecessary nowadays, unless you run
multiple distros, in which case its a convenient place to keep the
common kernels you use. I have much bigger /boot parts because I have
dozens and dozens of different kernels. This makes /lib/modules also
a candidate for separation - or at least also placing on the boot
partition.

I would like to see /lib/modules moved to /boot/modules.

> /dev/hda9 2056 1282 774 63% /home

Yawn and whatever's fine for you.

> /dev/hda11 2565 1088 1478 43% /opt

What on earth do you have in there? Three copiesof staroffice. Anyway,
good sizing.

> /dev/hda12 502 35 468 7% /tmp

Way too small. You can't even fit an iso image in there. I'd make it a
1GB part, or link it to /var/tmp. In fact, yes, do that.

> /dev/hda13 12268 1661 10608 14% /usr

This is way oversize.

> /dev/hda10 3075 117 2959 4% /var

This is a bit oversize. I'd have it at 1 or 1.5GB (especially if tmp
is in there). You can get away with a lot less if you don't do a lot of
logging, don't have huge caches in there, don't do mail bigtime, etc.
etc.

> i wanna change the /usr partition to 6Gb instead of 12.

Go ahead.

> The filesystem is reiser.

You need a reiser resizing tool.

> It would be great if somebody could give me a step by step description for
> the resizing of the /usr partition.

Use a reiser resizing tool.

Does parted work? It does for ext2.

Peter

P.T. Breuer wrote:

> reiser resizing tool

Hi peter,
the parted tools tells me to unmount the partition, but i'm not sure if i'm
gettings trouble if i umount the /usr directory ?!?

So i think it quit dangerous to unmount the /usr dir !!

Any suggestion on this ??
Greetings Siggi

Siggi <Siggi.Hofstetter@t-online.de> wrote:
> > reiser resizing tool

> the parted tools tells me to unmount the partition, but i'm not sure if i'm
> gettings trouble if i umount the /usr directory ?!?

?? You must unmount it if you are going to fiddle with it. Whatever
"troubles" you have without /usr available in the meantime are yours to
deal with.

> So i think it quit dangerous to unmount the /usr dir !!

I don't. What danger do you see, apart from not having anything on /usr
available for a while? Which sounds about as dangerous to me as not
reading the newspaper today.

> Any suggestion on this ??

If there is something you want from there, put it somewhere else for a
bit. Or copy the whole part contents somewhere else for a while.
Or boot from a rescue cd. Etc.

It's hardly a mind breaker!

Peter

P.T. Breuer <ptb@oboe.it.uc3m.es> wrote:
> Siggi <Siggi.Hofstetter@t-online.de> wrote:
[..]
> > The filesystem is reiser.

> You need a reiser resizing tool.

> > It would be great if somebody could give me a step by step description for
> > the resizing of the /usr partition.

> Use a reiser resizing tool.

> Does parted work? It does for ext2.

Hi Peter!

GNU parted doesn't work with reiserfs, according to my man page.

One can use 'resize_reiserfs', works while mounted.


I use it with lvm to grow volumes while the FS is in use. Works like a charm,
only some minor problems with rescanning some SCSI bus for new attached
devices, I need to sort out...

--
Michael Heiming

Remove +SIGNS and www. if you expect an answer, sorry for
inconvenience, but I get tons of SPAM

On Wed, 12 Nov 2003 11:29:04 +0100, Siggi <Siggi.Hofstetter@t-online.de> wrote:

> /dev/hda13 12268 1661 10608 14% /usr
> /dev/hda10 3075 117 2959 4% /var
>
> i wanna change the /usr partition to 6Gb instead of 12.
> The filesystem is reiser.
> It would be great if somebody could give me a step by step description for
> the resizing of the /usr partition

1) use resize_resierfs to shrink the filesystem
2) use fdisk to shrink the partition
..
--
/// Michael J. Tobler: motorcyclist, surfer, skydiver, \\\
\\\ and author: "Inside Linux", "C++ HowTo", "C++ Unleashed" ///
Help fight continental drift.

P.T. Breuer wrote:

> Siggi <Siggi.Hofstetter@t-online.de> wrote:
>> > reiser resizing tool
>
>> the parted tools tells me to unmount the partition, but i'm not sure if
>> i'm gettings trouble if i umount the /usr directory ?!?
>
> ?? You must unmount it if you are going to fiddle with it. Whatever
> "troubles" you have without /usr available in the meantime are yours to
> deal with.
>
>> So i think it quit dangerous to unmount the /usr dir !!
>
> I don't. What danger do you see, apart from not having anything on /usr
> available for a while? Which sounds about as dangerous to me as not
> reading the newspaper today.
>
>> Any suggestion on this ??
>
> If there is something you want from there, put it somewhere else for a
> bit. Or copy the whole part contents somewhere else for a while.
> Or boot from a rescue cd. Etc.
>
> It's hardly a mind breaker!
>
> Peter

Thanks Peter,
you are right ! This should work!

I will test it!

Thanks anyways!