[LON-CAPA-users] RPM update
Mon, 3 Jun 2002 13:52:04 -0400
Dear Dr. Jensen:
> The reboot went smoothly after the kernel upgrade. I'm now runnink the
> 2.2.19smp kernel. -All connections even seems to have been established
> after the reboot.
> Shouldn't we also be upgrading the filesystem to ext3 or reiserfs in
> order to prevent disasters after a power loss?
I have encountered bugs with ext3, but I do not believe they relate to anything
LON-CAPA software is doing (it was a Sun software application that was
abusing/"optimizing" system filesystem memory and paging/caching).
ext2 versus ext3? There is not a major difference, and disasters after
power losses (regarding ext2) are rare. If you are backing up your data,
ext2 power losses are especially not much of a concern.
Since LON-CAPA largely uses the filesystem directly as a database,
I think it is reasonable to consider making reiserfs the standard
filesystem for LON-CAPA sometime in the next few years.
If anyone has a development machine to play with, I would be curious
to hear how well LON-CAPA runs on reiserfs compared to ext2.
I would strongly advise against using reiserfs for a production server
at the present time. ext3 is probably okay if, in your opinion as a
system administrator, it is stable.
> On Sat, 1 Jun 2002, Scott Harrison wrote:
> > Dear Dr. Jensen:
> > It should work, especially if you read the information that
> > I suggested at redhat.com.
> > If your system does not boot up, you can always rescue it with
> > the original RedHat 6.2 installation CD-ROMs based on instructions
> > at:
> > http://www.redhat.com/docs/manuals/linux/RHL-6.2-Manual/ref-guide/s1-sysadmin-rescue
> > If there are any problems with this, perhaps contact me directly at
> > email@example.com when convenient.
> > Regards,
> > Scott
> > > Dear Scott,
> > >
> > > I did your steps below, except that I forgot step 1, and I did step 4
> > > with rpm -Fvh instead (am I in trouble??). I think I
> > > have a backup floppy somewhere in my
> > > office, though. Everything in /boot looks good, and lilo
> > > ran without errors. The 2.2.14 kernel is gone from /boot, so I
> > > don't have it as a backup. If things go wrong when I do the re-boot, will
> > > I be able to use the original lon-capa CDROM to boot from?
> > >
> > > Lars.
> > >
> > > On Thu, 30 May 2002, Scott Harrison wrote:
> > >
> > > >
> > > > 1) Make a backup floppy bootdisk:
> > > > mkbootdisk 2.2.14-5.0
> > > > 2) Test your floppy bootdisk
> > > > 3) Get kernel, kernel-headers, and kernel-smp RPMs
> > > > 4) Install with '-ivh', NOT '-Uvh'
> > > > rpm -ivh kernel-2.2.19-6.2.16.i686.rpm
> > > > rpm -ivh kernel-headers-2.2.19-6.2.16.i386.rpm
> > > > rpm -ivh kernel-smp-2.2.19-6.2.16.i686.rpm
> > > > 5) IMPORTANT! Since you are using the kernel-smp package, you must
> > > > do this step (which is normally not needed)
> > > >
> > > > /sbin/mkinitrd /boot/initrd-2.2.19-6.2.16.img 2.2.19-6.2.16
> > > > /sbin/mkinitrd /boot/initrd-2.2.19-6.2.16smp.img 2.2.19-6.2.16smp
> > > >
> > > > 6) Edit lilo.conf.
> > >
> > > --
> > > Lars Jensen, TMCC/Vista B200, 7000 Dandini Blvd, Reno NV 89512-3999.
> > > Internet: <firstname.lastname@example.org>, http://www.scsr.nevada.edu/~jensen
> > > Tel: 775.673.7113 FAX: 775.674.7592
> > >
> > > _______________________________________________
> > > LON-CAPA-users mailing list
> > > LON-CAPAemail@example.com
> > > http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
> > --
> > Scott Harrison, firstname.lastname@example.org
> > Pick battles big enough to matter, small enough to win.
> > --Jonathan Kozol
> > _______________________________________________
> > LON-CAPA-users mailing list
> > LON-CAPAemail@example.com
> > http://mail.lon-capa.org/mailman/listinfo/lon-capa-users
> Lars Jensen, TMCC/Vista B200, 7000 Dandini Blvd, Reno NV 89512-3999.
> Internet: <firstname.lastname@example.org>, http://www.scsr.nevada.edu/~jensen
> Tel: 775.673.7113 FAX: 775.674.7592
> LON-CAPA-users mailing list
Scott Harrison, email@example.com
Do what you can with what you have where you are.