Subject: FW: *** RH 6.1 WARNINGS ***
From: Ozan Ozkara (colony@istanbul.linux.org.tr)
Date: Mon 18 Oct 1999 - 10:12:48 EET DST
-----Original Message-----
From: owner-linux-admin@vger.rutgers.edu
[mailto:owner-linux-admin@vger.rutgers.edu]On Behalf Of Jim Gleason
Sent: Sunday, October 17, 1999 10:33 PM
To: linux-admin
Subject: *** RH 6.1 WARNINGS ***
After using RH 6.1 in a controlled environment for a few days, I decided
to update my main server and this is what I learned...
WARNING #1:
The ISOs you can download are NOT the same as the disk being
shipped. When RH announced 6.1, a friend downloaded the ISOs
and built a CD with them. We kept having problems so when I
got my disk as a RH Member More member, we compared the
contents and noted a lot of files are different. On the
bright side, the disk RH shipped is a LOT cleaner than the
ISOs downloaded.
WARNING #2:
The first thing I noticed about RH 6.1 (both with the ISOs and
the RH disk) was machines that have always correctly noted and
handled my memory no longer knew how much memory I had. To
fix this you modify /etc/lilo.conf (preferrably before
upgrading otherwise you get to reboot) with the following line
(with your memory size)added to both "image=" sections and
then issue the "lilo" command to activate it.
append="mem=256M"
WARNING #3:
The next thing I noticed is that the results of "hostname" and
"uname" now have my machine name as the FQDN. To fix this you
issue the following command:
hostname YOUR_HOST_NAME
And then you modify "/etc/sysconfig/network" and set the
"HOSTNAME=" to be the correct name for when you reboot next.
WARNING #4:
The next thing I noticed is that my DNS (named) was no longer
running. To fix this rename the "K45named" file in rc3.d,
rc4.d, and rc5.d to "S55named". And then issue the following
command:
/etc/rc.d/init.d/named start
WARNING #5:
The next thing I noticed was that my
"/etc/httpd/conf/httpd.conf" file no longer had the
<VirtualHost ...> information in it. To fix this copy the
missing <VirtualHost...> information from the
httpd.conf.rpmsave file created by the upgrade. Then issue
the following command:
/etc/rc.d/init.d/httpd reload
WARNING #6:
The next thing I noticed was that my "IP Aliases for Virtual
Host" no longer worked. It turns out the scripts are broken
and can't handle ranges of IP addresses (i.e.
208.34.16.194-222). There amy also be other problems with it,
I don't know. My fix for this may not have been the best, but
I was running out of time. Anyway, my fix was to:
1) Save the contents of the
/etc/sysconfig/network-scripts directory (actually I
jsut renamed it to
/etc/sysconfig/network-scripts.RH61).
2)Extract the contents of the
/etc/sysconfig/network-scripts directory from my
last backup.
3) Copy the network-functions file from the new RH61
distribution into the newly extracted directory.
4) Issue the following command.
/etc/rc.d/init/network restart
With these fixes in place, things seem to be running OK for now. I will
probably see more odds and ends when the customers see this on Monday.
If I find more, I will let you all know.
Jim Gleason
Site2Site Networking
jim@mail.site2site.net
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