[K12OSN] Re: Upgrades, Was: user adding programs not working
Angus Carr
acarr at saskforestcentre.ca
Fri Aug 13 20:40:54 UTC 2004
Another method for an existing server which is presently working is to
use the kernel and initrd.img in
ftp://k12linux.mesd.k12.or.us/pub/K12LTSP/4.1.0/i386/images/pxeboot/ to
boot directly from GRUB.
I've done this before with FC2, and it worked then. Of course, it is
largely similar to what you are suggesting, but works very well for not
wasting media. That wafer of plastic and Aluminum doesn't mean much, but
over the life of a typical administrator, how many of them are there?
In terms of download time, it's irrelevant. They are the same files,
just not packed up in a .iso file.
Angus.
k12osn-request at redhat.com wrote:
>
>But since Doug was asking about ISO-less installs, here is a quick
>HOWTO. Note that this is not really recommended, but it does work if
>the network connection is reliable. In any case it will likely be slow.
>
>Note: this is for K12LTSP 4.1.0. These instructions work for older
>releases, just substitute the version number in the pathnames.
>
>1. Download the boot image (about 4MB in size) and burn it on a CDR:
>
> ftp://k12linux.mesd.k12.or.us/pub/K12LTSP/4.1.0/i386/images/boot.iso
>
> NOTE: if you BIOS supports booting off a USB drive, you can use
> the diskboot.img instead of the boot.iso. See:
>
>ftp://k12linux.mesd.k12.or.us/pub/K12LTSP/4.1.0/i386/images/README
>
>2. boot off the iso (or USB drive)
>
>3. when you are prompted for the install source, select FTP
>
>4. hostname: k12linux.mesd.k12.or.us
> directory: /pub/K12LTSP/4.1.0/i386/
>
>5. install/upgrade like normal
>
>
>-Eric
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>------------------------------
>
>Message: 4
>Date: Fri, 13 Aug 2004 19:28:18 +0200
>From: Andy Rabagliati <andyr at wizzy.com>
>Subject: [K12OSN] Locking down browser proxy settings and homepage
>To: "Support list for opensource software in schools."
> <k12osn at redhat.com>
>Message-ID: <20040813172818.GA30231 at wizzy.com>
>Content-Type: text/plain; charset="us-ascii"
>
>Folks,
>
> I need to arrange that students have their proxy settings and
> home page are preconfigured on startup.
>
> The following is a hack to the mozbyteshift perl program to
> do all the settings.
>
> You can see the changes that will be made - after the __DATA__
> line in the perl script.
>
> As root, invoke it as
>
> # proxy.pl hostname.example.com
>
>Cheers, Andy!
>
>http://wizzy.org.za/
>
>
>-------------- next part --------------
>#!/usr/bin/perl
>
># lock down browser homepage and proxy settings
># Andy Rabagliati <andyr at wizzy.com>
># http://wizzy.org.za/
>
>use encoding 'latin1';
>use strict;
>
>sub usage() {
> print "Usage: $0 <hostname>\n";
> exit 1;
>}
>
>usage() if (@ARGV != 1);
>
>my $hostname = $ARGV[0];
>
># Byteshifting program for mozilla's netscape.cfg files
>
># Old netscape 4.x uses a bytechift of 7
># To decode: moz-byteshift.pl -s -7 <netscape.cfg >netscape.cfg.txt
># To encode: moz-byteshift.pl -s 7 <netscape.cfg.txt >netscape.cfg
>
># Mozilla uses a byteshift of 13
># To decode: moz-byteshift.pl -s -13 <netscape.cfg >netscape.cfg.txt
># To encode: moz-byteshift.pl -s 13 <netscape.cfg.txt >netscape.cfg
>
># To activate the netscape.cfg file, place the encoded netscape.cfg file
># into your C:\Program Files\mozilla.org\Mozilla directory.
># Then add the following line to your
># C:\Program Files\mozilla.org\Mozilla\defaults\pref\all.js file :
># pref("general.config.filename", "mozilla.cfg");
>
>my $buffer;
>my $mozillacfg;
>
>while ($_ = <DATA>) {
> $_ =~ s/_WIZZY_HOSTNAME_/$hostname/g;
> $buffer .= $_;
>}
>
># lazy - but chop is convenient
>
>$buffer = reverse ($buffer);
>
>binmode(STDOUT, ":raw");
>
>while(length($buffer)) {
> my $byte = ord(chop($buffer));
> $byte += 512 + 13;
> $mozillacfg .= pack("c", $byte);
>}
>
># calling all browsers ..
>my @all = glob("/usr/lib/*/defaults/pref/all.js");
>
>for my $f (@all) {
> # read in file, skipping anything that mentions general.config.filename
> open(FILE, $f) || die "Cannot read $f: $!";
> undef ($buffer);
> while ($_ = <FILE>) {
> if ($_ !~ /general.config.filename/) {
> $buffer .= $_;
> }
> }
> close (FILE);
> # add our version of general.config.filename
> $buffer .= 'pref("general.config.filename","mozilla.cfg");//WIZZY' . "\n";
> # write it out again
> open (FILE, "> $f") || die "Cannot write to $f: $!";
> print FILE $buffer;
> close (FILE);
> # get path to mozilla.cfg
> $f =~ s:defaults/pref/all.js::;
> $f .= 'mozilla.cfg';
> # write it
> open (FILE, "> $f") || die "Cannot write to $f: $!";
> print FILE $mozillacfg;
> close (FILE);
>}
>
>__DATA__
>// Wizzy mozilla defaults lockdown for _WIZZY_HOSTNAME_
>
>lockPref("browser.cache.disk.capacity", 0);
>defaultPref("security.warn_entering_secure", false);
>defaultPref("security.warn_submit_insecure", false);
>
>lockPref("browser.cache.enable",false);
>lockPref("network.proxy.type",1);
>lockPref("network.proxy.ftp","_WIZZY_HOSTNAME_");
>lockPref("network.proxy.ftp_port",8080);
>lockPref("network.proxy.http","_WIZZY_HOSTNAME_");
>lockPref("network.proxy.http_port",8080);
>lockPref("network.proxy.ssl","_WIZZY_HOSTNAME_");
>lockPref("network.proxy.ssl_port",8080);
>lockPref("browser.startup.homepage","http://_WIZZY_HOSTNAME_/");
>
>------------------------------
>
>Message: 5
>Date: Fri, 13 Aug 2004 12:54:54 -0500
>From: Les Mikesell <les at futuresource.com>
>Subject: Re: [K12OSN] Emergency network backup using STAR && ssh
>To: "Support list for opensource software in schools."
> <k12osn at redhat.com>
>Message-ID: <1092419694.13212.55.camel at moola.futuresource.com>
>Content-Type: text/plain
>
>On Fri, 2004-08-13 at 09:15, Henry Burroughs wrote:
>
>
>>For the moment, Coastal South Carolina (and coastal Georgia) are on
>>the predicted path for Hurricane Charley. Not knowing what strength
>>it will be after hitting Tampa Bay, FL (which is where Eckerd College
>>www.eckerd.edu, the college I graduated from is situated right on the
>>water... it'll be covered by possibly 10 ft surges from the 110 mph
>>storm), I am trying to backup some of the teacher's PCs (unfortunately
>>I don't have Amanda or any other network backup software operating on
>>those PCs b/c of a shortage of network filespace). Also on that list
>>is my own system, which I need to backup about 15 gigs to a remote
>>tape drive (which I have backed that server up using good ole DUMP).
>>My system is running Linux, and I have STAR installed, which should be
>>able to use ssh. Otherwise, I'll have to get rsh installed and
>> configured for running DUMP. Anyone gotten STAR operating via ssh?
>>
>>
>
>Star has it's own concept of remote access using host:/device notation
>and you need it's version of rmt configured on the tape host. If
>you don't already have that set up and star installed on all the
>remotes, it would probably be faster to NFS export the other
>boxes filesystems to your tape machine, mount them and tar them
>up like they were local with star or gnutar. Or you can do
>a brute force ssh from either end tarring to stdout:
>from tape host:
> ssh root at remote "cd / ; tar cf - . " |dd of=/dev/nst0
>from remote:
> cd /
> tar cf - . | ssh root at tapehost dd of=/dev/nst0
>(Actually I prefer to cd to the top of each filesystem separately
>and add --one-file-system to the gnutar command. I think star
>limits itself to one filesystem by default).
>
>If the remotes are windows boxes and you have access to
>the admin accounts you can use smbtar, something like
>(untested..):
>smbtar -s server -x 'C$' -u Administrator -t /dev/nst0
>the 'C$' is the hidden admin share for the C drive (do them all...)
>and needs the single quote to protect the $ from shell expansion.
>It should prompt for the administrator password or you can
>add a -p password to the command line. Smbtar is a shell wrapper
>for smbclient so you can use smbclient directly for more interactive
>access to the machine but note that the options are specified
>differently.
>
>---
> Les Mikesell
> les at futuresource.com
>
>
>
>
>
>
>------------------------------
>
>Message: 6
>Date: Fri, 13 Aug 2004 13:00:57 -0500
>From: Mark Cockrell <cockrell at honeygroveisd.net>
>Subject: Re: [K12OSN] Video Cards
>To: k12osn at redhat.com
>Message-ID: <411D01D9.8050909 at honeygroveisd.net>
>Content-Type: text/plain; charset="us-ascii"
>
>
>
>>Subject:
>>Re: [K12OSN] Video Cards
>>From:
>>Eric Harrison <eharrison at mail.mesd.k12.or.us>
>>Date:
>>Fri, 13 Aug 2004 08:45:21 -0700
>>
>>To:
>>"Support list for opensource software in schools." <k12osn at redhat.com>
>>
>>
>>On Fri, 2004-08-13 at 08:08, Mark Cockrell wrote:
>>
>>
>>
>>
>>>>>>____________________________________________________________________
>>>>>>
>>>>>>From: jam at mcquil.com
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>
>>>>
>>>>
>><snip>
>>
>>
>>
>>
>>>>>>Quite a while ago, I released 2.4.24-ltsp-4, which is in the
>>>>>>ltsp_kernel-3.0.15 package on the ltsp.org download page.
>>>>>>
>>>>>>That fixed the problem with trident video.
>>>>>>
>>>>>>I'm pretty sure that eric also released an update to fix it.
>>>>>>
>>>>>>Jim McQuillan
>>>>>>jam at Ltsp.org
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>
>>>>
>>>>
>>I released an update, but on double-checking I had not added it to the
>>repositories. Doh!
>>
>>
>>
>>
>>
>>>>Jim and Scott,
>>>> Ok, that's exactly the problem I'm having, and the problem I would
>>>>very much like to fix. But I understood basically nothing in your
>>>>message, Jim. Can you tell me how to download and install the proper
>>>>kernel, and you'll have to speak to me like I'm an idiot, because...
>>>>well... I am. ;)
>>>>
>>>>
>>>
>>>
>>>
>>>
>>Mark, you should be able to update your system and it will install the
>>updated kernel:
>>
>> up2date -u
>>
>>
>>-Eric
>>
>>
>>
>>
>>
>Eric,
> I ran "up2date -u" and it told me that everything was up to date. I
>used Scott's instructions and got things working the way I'd hoped they
>would, but I just thought I'd let you know that "up2date -u" didn't work
>for me.
>
>
>
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