[Fedora-livecd-list] persistence testing howto

[Mike Dickson]

I am out of the chess game.   Any news?

MikeD

On Fri, 2008-01-04 at 02:33 +0000, Mike Dickson wrote:

> I just finished trying to download JBoss Developer Studio and
> installing it on the thumb drive.  It filled up again.  I then dropped
> the .jar on the stick hoping that I could install from that and it
> filled up again.  Checkmate.  
> 
> MikeD
> 
> On Thu, 2008-01-03 at 15:30 -0800, Mike Dickson wrote:
> 
> > Ran that and yes the snapshot area filled up BEFORE the errors.  Let
> > me know what I can do....
> > 
> > MikeD
> > 
> > On Thu, 2008-01-03 at 16:31 -0600, Douglas McClendon wrote: 
> > 
> > > Mike Dickson wrote:
> > > > Guys,
> > > > 
> > > > I got a LiveCD + Persistence usb drive running from your scripts, but 
> > > > got I/O errors if I tried to do a yum update.
> > > > 
> > > > Before that I was able to vi test.txt and put some text in and it 
> > > > survived a reboot.
> > > > 
> > > > What can I do to address the i/o errors?
> > > 
> > > My first question/explanation would be that you filled up the snapshot 
> > > device.  This is quite possible, as a yum install involves creating 
> > > several copies of the actual files you end up installing.
> > > 
> > > The way to see if this is what is happening would be to have another 
> > > terminal open, and periodically watch the output of "dmsetup status". 
> > > As new blocks are written to the rootfs snapshot device, you will see 
> > > the snapshot filling up.
> > > 
> > > If you get these IO errors even before the snapshot fills up, please try 
> > > to post some more detailed output.
> > > 
> > > In general, as discussed there are pros and cons with this method, and a 
> > > unionfs method.  I do think there are ways to work around the cons of 
> > > this method in such a way that it is useful.  For instance, I'll play 
> > > around and see if I can prescribe a process of using yum that will get 
> > > it to create all of its intermediate files in a native tmpfs (/dev/shm 
> > > or the like) instead of the rootfs, so that they don't eat into the 
> > > snapshot space.  Likewise, now that I have my first actual tester, maybe 
> > > I'll figure out some other creative ways to improve the method (I have 
> > > some ideas I need to experiment with...).
> > > 
> > > Thanks,
> > > 
> > > -dmc
> > > 
> > > 
> > > 
> > > > 
> > > > MikeD
> > > > 
> > > > "Messsage from syslogd at localhost <mailto:syslogd at localhost> at
> > > >   kernel: journal commit i/o error"
> > > > 
> > > > 
> > > > On Wed, 2008-01-02 at 04:07 -0800, Mike Dickson wrote:
> > > >> I have some time now.  I am attempting this tonight and tomorrow.  I 
> > > >> will let you know.
> > > >>
> > > >> MikeD
> > > >>
> > > > 
> > > > 
> > > > ------------------------------------------------------------------------
> > > > 
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> > > 
> > 
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