Tutorial for newbie
Allen Meyers
chef11994 at sbcglobal.net
Thu Aug 14 18:39:14 UTC 2008
----- Original Message ----
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Today's Topics:
1. Re: how big does /tmp need to be? (Derek Broughton)
2. Re: UUIDs on drives (Derek Broughton)
3. Re: UUIDs on drives (Derek Broughton)
4. Re: newbie: getting wireless going on hardy
(jeffrey.berger at mac.com)
5. Re: UUIDs on drives (ghe)
6. Re: UUIDs on drives (Smoot Carl-Mitchell)
7. Can one send screen output to stickam? (Damien Hull)
8. 32 bit install on 64 bit Xeon (Homer)
9. configure can't find gconf2 (Mike Adolf)
10. For newbies (Doug Pollard)
----------------------------------------------------------------------
Message: 1
Date: Thu, 14 Aug 2008 13:35:23 -0300
From: Derek Broughton <news at pointerstop.ca>
Subject: Re: how big does /tmp need to be?
To: ubuntu-users at lists.ubuntu.com
Message-ID: <1354371.30u7IBEVy9 at cedar.serverforest.com>
Content-Type: text/plain; charset=us-ascii
Rashkae wrote:
> Brian McKee wrote:
>
>> People create partitions for other reasons too.
>>
>> One is some kind of performance/disk size issues - e.g. /tmp is on a
>> separate faster drive, or it's local when all your other partitions
>> are NFS mounted.
>>
>> Another reason I can think of is keeping the system up when you run
>> out of space.
>> For instance, if you have /var/log on a separate partition, and
>> something runs wild with logging filling that partition, the system
>> stays up and running. If it's all in one partition then you're hosed.
>> I could see that argument for having /tmp on it's own.
>>
>> Lastly if you like playing with file system types - e.g. you use ext3
>> for / and xfs for /tmp because you know you do transcoding projects in
>> /tmp all the time and muck with big files.
>>
>> I suppose the note I should add to my original +1 comment is use LVM
>> and then it's easy to change later.
>
> Note self, think 5 minutes before posting.. Thanks ;)
LOL. I have to admit, I didn't think about things like video. _video_ never
goes to /tmp on my system. Specifically because it always wants to use a
lot more space than I have in /tmp.
I used to make a really, really, big swap partition, and put /tmp in tmpfs
(ie, it uses part of the swap). Then I figured I wasn't really wasting
space. But Ubuntu bollixed that and I never got around to fixing it.
--
derek
------------------------------
Message: 2
Date: Thu, 14 Aug 2008 13:42:06 -0300
From: Derek Broughton <news at pointerstop.ca>
Subject: Re: UUIDs on drives
To: ubuntu-users at lists.ubuntu.com
Message-ID: <46901086.HMidTW9iAW at cedar.serverforest.com>
Content-Type: text/plain; charset=utf-8
Marcin ?Qrczak? Kowalczyk wrote:
> 2008/8/14 Derek Broughton <news at pointerstop.ca>:
>
>>> Except when resizing the swap with gparted, where /dev/sda5 does not
>>> change but UUID does.
>>
>> No, you're wrong there. The swap has changed. You have created a new,
>> different, swap partition, so the UUID must change.
>
> I resized an ext3 partition, and moved and resized a swap partition
> (without even changing its relative order to other partitions). The
> UUID of the ext3 partition did not change. I see no reason why the
> UUID of the swap would *have to* change. It is just what was for some
> reason easier for gparted developers to do.
No, a swap "filesystem" is a fixed length, and resizing it changes it.
Resizing some real filesystems would probably do the same.
--
derek
------------------------------
Message: 3
Date: Thu, 14 Aug 2008 14:04:44 -0300
From: Derek Broughton <news at pointerstop.ca>
Subject: Re: UUIDs on drives
To: ubuntu-users at lists.ubuntu.com
Message-ID: <2021430.qtlLWuNAQQ at cedar.serverforest.com>
Content-Type: text/plain; charset=us-ascii
Smoot Carl-Mitchell wrote:
> On Thu, 2008-08-14 at 12:27 -0300, Derek Broughton wrote:
>
>> When you find some duplication, _then_ object. I don't believe you're
>> ever
>> going to find any, even with a 4-byte vfat UUID. 2**128 is still a very
>> big number.
>
> A quick clarification here. With a 4 byte number, there is a 1 in 2**32
> (about 1 in 4 billion) chance of duplicating a UUID. It is not 1 chance
> in 2**128 which is for a 128 bit number.
oops. :-)
2**32 is _still_ a very big number. There are almost certainly not 4
billion vfat filesystems in the world today.
--
derek
------------------------------
Message: 4
Date: Thu, 14 Aug 2008 12:10:26 -0500
From: jeffrey.berger at mac.com
Subject: Re: newbie: getting wireless going on hardy
To: "Ubuntu user technical support, not for general discussions"
<ubuntu-users at lists.ubuntu.com>
Message-ID: <0CF772EF-F48B-48B5-AE48-F9073D345B90 at mac.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Here's hosts
yaza at ubuntu:~$ cat /etc/hosts
127.0.0.1 localhost ubuntu
127.0.1.1 ubuntu
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
yaza at ubuntu:~$
-------
Sorry re top post. Learning ...
-J
On Aug 14, 2008, at 11:07 AM, NoOp wrote:
> On 08/13/2008 10:36 AM, jeffrey.berger at mac.com wrote:
>> Thanks! I'm looking at the bug reports. And I've got Terminal in the
>> top menubar.
>>
>> The localhost line in hosts lacks a <machinename>. I'll try adding
>> it.
>>
>> The rest of the hosts file contains info re IPv6 capable hosts
>> including loopback, localnet, mcastprefix, allnodes, allrouters and
>> allhosts.
>>
>> I don't have mail set up on my ubuntu machine or access over my LAN
>> so
>> posting hosts is something of a chore.
>>
>> That brings up another problem: my ubuntu IP address is 127.0.etc ...
>> But my LAN is running via Airport Extreme. Addresses (DHCP) are 10.0.
>> etc. The other machine on the LAN (this one) is running Leopard.
>>
>> -J
>
> Please bottom post on this list.
>
>
>>>
>>> Before you edit your hosts file, please post your /etc/hosts file;
>>> Applications|Accessories|Terminal:
>>>
>>> cat /etc/hosts
>>>
>
> At least as a minimum post what you have in these two lines:
>
> 127.0.0.1
> 127.0.1.1
>
>
> --
> ubuntu-users mailing list
> ubuntu-users at lists.ubuntu.com
> Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
------------------------------
Message: 5
Date: Thu, 14 Aug 2008 11:24:55 -0600
From: ghe <ghe at slsware.com>
Subject: Re: UUIDs on drives
To: "Ubuntu user technical support, not for general discussions"
<ubuntu-users at lists.ubuntu.com>
Message-ID: <48A46A67.3030505 at slsware.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
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Brian McKee wrote:
| But that's the point. The drive and partition numbers can and do
| change - UUID doesn't.
Yay! A solution for the kernel 'improvements' and the udev virus! Have
to do it by hand, it sounds like, but maybe it'll work.
| UUID is all you need to identify it! You just put it in the fstab.
| Who cares what arbitrary name the disk controller software gave it?
Disk controller software used to call SCSI drives sda... and the IDE's
hda... When I set the SCSI ID to 0 on my system (boot) disk, it'd be
called sda -- all the time -- and grub's menu.lst and fstab would never
have a problem. When I bent something, I could at least boot the system
and fix it.
Then somebody had the brilliant idea of calling everything sd... Now
whatever is scanned first, SCSI, IDE, SATA, USB sticks, whatever, gets
called sda. Very poor.
udev was supposed to fix this, I think. But the installer(s) don't build
the rules, so when I installed Heron on my Mac Pro the other day, then
turned on an external SCSI disk, then updated Ubuntu's kernel, I got to
reinstall Ubuntu.
It looks like Ubuntu's got fstab fixed and menu.lst sorta fixed (it
still refers to the BIOS' (hd0,1) -- don't know, but that may be a
problem with grub). Getting there...
- --
Glenn English
ghe at slsware.com
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------------------------------
Message: 6
Date: Thu, 14 Aug 2008 10:27:09 -0700
From: Smoot Carl-Mitchell <smoot at tic.com>
Subject: Re: UUIDs on drives
To: "Ubuntu user technical support, not for general discussions"
<ubuntu-users at lists.ubuntu.com>
Message-ID: <1218734829.12080.91.camel at smoot.tic.com>
Content-Type: text/plain
On Thu, 2008-08-14 at 14:04 -0300, Derek Broughton wrote:
> 2**32 is _still_ a very big number. There are almost certainly not 4
> billion vfat filesystems in the world today.
I would hope not, but you never know. There are a lot of USB sticks out
there. Give everyone in the world one and you have more than 4 billion!
--
Smoot Carl-Mitchell
System/Network Architect
smoot at tic.com
+1 480 922 7313
cell: +1 602 421 9005
------------------------------
Message: 7
Date: Thu, 14 Aug 2008 09:37:45 -0800 (AKDT)
From: Damien Hull <dhull at digital-overload.net>
Subject: Can one send screen output to stickam?
To: ubuntu-users at lists.ubuntu.com
Message-ID: <30694680.61218735465828.JavaMail.root at mail1>
Content-Type: text/plain; charset=utf-8
I would like to send screen output to stickam. Is this possible?
------------------------------
Message: 8
Date: Thu, 14 Aug 2008 12:10:36 -0600
From: Homer <fsunoles at gmail.com>
Subject: 32 bit install on 64 bit Xeon
To: "Ubuntu user technical support, not for general discussions"
<ubuntu-users at lists.ubuntu.com>
Message-ID:
<75db45220808141110u3bd443adif78cf62d64a6a0f at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I've been googling, but can't seem to find a definitive answer... Can
I install 32 bit Ubuntu on a 64 bit Xeon machine?
Specifically, in case it matters:
Supermicro MB X7DBE
2x Xeon E5430 2.66GHz Quad Core
------------------------------
Message: 9
Date: Thu, 14 Aug 2008 12:12:08 -0600
From: Mike Adolf <mlnx at mho.com>
Subject: configure can't find gconf2
To: ubuntu-users <ubuntu-users at lists.ubuntu.com>
Message-ID: <48A47578.8020801 at mho.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Greetings,
I am trying to install Gnucash 2.2.6 and get a configure check error.
------------------------------------------------------
Package gconf-2.0 was not found in the pkg-config search path. Perhaps
you should add the directory containing `gconf-2.0.pc' to the
PKG_CONFIG_PATH environment variable No package 'gconf-2.0' found
configure: error: Library requirements (gconf-2.0 >= "2.0") not met;
consider adjusting the PKG_CONFIG_PATH environment variable if your
libraries are in a nonstandard prefix so pkg-config can find them.
--------------------------------------------------------
There is no gconf-2.0.pc in /usr/lib/pkgconfig. In fact I could not find
it anywhere on my system. Also, /usr/local/lib/pkgconfig is empty. If I
need to set a symbolic link to some .pc in pkgconfig, I don't know which
one. Can I make my own gconf-2.0.pc file? Any ideas?
Mike
------------------------------
Message: 10
Date: Thu, 14 Aug 2008 14:15:35 -0400
From: Doug Pollard <dougpol1 at verizon.net>
Subject: For newbies
To: "Ubuntu user technical support, not for general discussions"
<ubuntu-users at lists.ubuntu.com>
Message-ID: <48A47647.1050703 at verizon.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
A while back somone on this list suggested loading and reading Rutebook.
As far as I am concerned that was a stroke of geniouse. It is the best
tutorial I have ever read on any technical subject. It is straight to
the point and doesn't explain anything that doesn't need to be known for
the particlar subject being read at the moment. Evey little shor
unmemorable two and three letter command has had it's meaning spelled
out so you have a reference to remeber by. I find it's much easyier to
rember for example "change diectory than CD. I can't get my mind around
cd it's not anchored to anything. But the biggest thing I learned is
that in the past I have read something and felt dumb if I didn't
understand it. He lets you know to read everything three times, do the
exercise and don't move on until you know the subject.
I have been reading off and on a couple days for a total of one good
days reading and have learned more than I have in all the reading I have
done on linux put together. I haven't learned a lot but what I have
learned," I KNOW." One thing I think I have found is I am not just
dumb ,this stuff is hard. I can't stress enough how good this tutorial
is for newbies.
Doug
Doug:
Thanks and since I missed it would someone post the location again for I really need to read study this
And while we are on newbies and I am certainly one linux and ubuntu suddenly became more organized when len suggested I switch to [kubuntu] desktop. Maybe its just me, but suddenly I had a place to put things and knew where to look.
I normally read everything here and it has made a huge difference.
Thanks to all
------------------------------
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