[gentoo-user] switching from reiser4 to reiserfs

[gentoo-user] switching from reiser4 to reiserfs

[Catalin Trifu]

	Hi,

     I have a computer at home which I use as a test machine (from time to time)
and I decided some time ago to play with reiser4, which was said to be faster
than reiserfs and which should outperform it.
     I have a fair processor (p4 2GHz) and 1GB RAM which is imho a pretty good
combination.
     However, I am quite unhappy with how reiser4 performs.
     Is there an easy way switch back my reiser4 partition to reiserfs without
reinstalling everything.


Catalin

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Re: [gentoo-user] switching from reiser4 to reiserfs

[Justin Patrin]

On 8/26/05, Catalin Trifu <catalin@isp-software.de> wrote:
>         Hi,
> 
>      I have a computer at home which I use as a test machine (from time to time)
> and I decided some time ago to play with reiser4, which was said to be faster
> than reiserfs and which should outperform it.
>      I have a fair processor (p4 2GHz) and 1GB RAM which is imho a pretty good
> combination.
>      However, I am quite unhappy with how reiser4 performs.
>      Is there an easy way switch back my reiser4 partition to reiserfs without
> reinstalling everything.
> 

I suggest booting from a Gentoo CD. Make a tarball of the entire FS
you want to convert and either pipe it across the network or onto
another HD you can put in this machine. Reformat the partition.
Untarball the backup onto the newly formatted partition. You also need
to make sure you alter your fstab to mount the partition right (and
alter your grub or other boot config files accordingly as well).

-- 
Justin Patrin

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Re: [gentoo-user] switching from reiser4 to reiserfs

[Hans-Werner Hilse]

Hi,

On Fri, 26 Aug 2005, Justin Patrin wrote:

>>      Is there an easy way switch back my reiser4 partition to reiserfs without
>> reinstalling everything.
>
> I suggest booting from a Gentoo CD. Make a tarball of the entire FS
> you want to convert and either pipe it across the network or onto
> another HD you can put in this machine. Reformat the partition.
> Untarball the backup onto the newly formatted partition. You also need
> to make sure you alter your fstab to mount the partition right (and
> alter your grub or other boot config files accordingly as well).

Hm, short addition here: ...and don't forget to use tar's "p" option! 
BTW, I don't really know if the Gentoo CDs support Reiser4... But any 
LiveCD will do. In fact, one could simply remount the partition read-only 
for the running system and build the tarball. Using a tmpfs root system it 
would even be possible to unpack the tarball without any reboot. But for 
doing that, one has to read at least the pivot_root manpage and a ready 
chrootable system is needed, to. Gentoo's stages will most probably do a 
good job here.

-hwh
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Re: [gentoo-user] switching from reiser4 to reiserfs

[Neil Bothwick]

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On Sat, 27 Aug 2005 14:48:54 +0200 (CEST), Hans-Werner Hilse wrote:

> Hm, short addition here: ...and don't forget to use tar's "p" option!

This is the default on tar now, and has been for quite some time.


-- 
Neil Bothwick

Electric chairs are period furniture: they end a sentence

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