Text 179, 108 rader
Skriven 2006-06-23 14:13:40 av David Calafrancesco (1:2624/306.0)
    Kommentar till text 174 av Peter Knapper (3:772/1.10)
Ärende: installing Linux with eCS
=================================
Peter Knapper wrote in a message to David Calafrancesco:

 PK> Hi David,

 DC> If you have the live CD, boot from it and see what it 
 DC> looks and feels like before investing any time. 

 PK> Although I have been aware of ubuntu for some time, I have just had
 PK> my first look at the ubuntu web site and note that v6.06 only seems
 PK> to have the one Desktop CD now, and it seems to allow both CD
 PK> boot/run and also an install. I also note that the FIRST entry in
 PK> the notes talks of LVM issues -

There is a DVD that has everything in it, an alternate install version that
understands how to use the Linux LVM and RAID system, and a regular system. In
addition, each of these are available for various CPU flavors. Standard i386,
AMD 64 bit and PowerPC. Once the i386 is installed, it can easily be upgraded
to a full Pentium SMP kernel to enable hyperthreading or multi-processor as
well as the special functions built into the 686 and later Pentium series as
opposed to the basic 386 instruction set. 

 PK> =============================================
 PK> Known Ubiquity issues in Ubuntu 6.06 LTS

 PK> (Ubiquity is the new graphical installer on the Desktop CD.) 

 PK>     * Problems when LVM or RAID are active:
 PK>       If you are installing from the Desktop CD on a system that
 PK> already has  one or more RAID arrays or LVM volume groups set up,
 PK> you must disable the arrays (sudo /etc/init.d/mdadm stop; sudo
 PK> mdadm --stop --scan) and volume groups (sudo vgchange -a n) before
 PK> starting the installer.
 PK> ==============================================
 PK> I am unsure what they mean by "Volume Groups", are these "LVM
 PK> volumes" that are spread across multiple physical drives? My HD's
 PK> are all SCSI on an Adaptec HA and all LVM Volumes are on a Single
 PK> HD. I have about 18GB of space  for more Logical Partitions
 PK> available so I doubt space is an issue.

They speak specifically of Linux LVM and Linux software raid. It has nothing to
do with OS2 LVM as I understand things, though I have never experiemented with
merging Linux and OS2. Mostly because my OS2 system remains as I last built it
back close to a decade ago using Warp4. I've moved to newer drives and replaced
the motherboard, but it is essentially unchanged from what it was circa 1997. I
use it only to run the BBS. All other work I do is on Linux these days. 

 DC> Personally I love it and am using it as my workstation 
 DC> linux distribution of choice on several systems. 

 PK> What particular aspect(s) of ubuntu makes this "your choice"? 

I am a total fan of Debian package management. Period. I'll run Red Hat
Enterprise Server when I absolutely must, but if it will run on a Debian
system, it gets Debian. I use pure Debian for the servers, but found that I
always had to fiddle with the desktop a bit more to get something that was very
usable for me. With Ubuntu, I keep the Debian package management aspects and
inherit a much better integrated desktop experience. It has a very reasonable
development cycle of circa 6 months versus Debian's 2+ years. Upgrading to each
new version of Ubuntu is as smooth as any Debian upgrade, usually very smooth. 

The overall integration of packages and desktop tools just generally works out
of the box. Whether I've installed it on a brand new IBM T60 laptop or on a
home built older system. It doesn't seem to matter, it all generally just works
with minimum fuss. 


 DC> An extended partition should be just fine. The most 
 DC> important thing is to leave your boot manager alone and 
 DC> ensure that it installs the Linux boot loader, Grub for 
 DC> ubuntu, into the same partition as you installed the 
 DC> system. Note that the partition needs to be flagged as 
 DC> an Ext3 file system and you should probably create a 
 DC> second partition sized at 1-2 times your RAM and flag 
 DC> it for use as linux swap space. Just be sure you don't 
 DC> install the boot loader for Linux into the MBR or you 
 DC> will lose your existing loader. 

 PK> All noted thanks.

 DC> It should be possible to have your current boot manager 
 DC> trigger a boot by running the pseudo mbr loader that 
 DC> you install into your extended partition. If that 
 DC> fails, there is a boot strap system which I am afraid 
 DC> I've never used and can't advise you on specifics. 

 PK> Hmmmm, for some reason this sounds potentially nasty for some
 PK> people who may not like dabling in the low level stuff.....;-)

Whenever you deal with a boot loader you have to be aware of the low level
stuff. The reality is that Ubuntu and Debian installers understand how to bring
up other OSes like Windows. They should probably be able to handle the boot
tasks of OS2, however for someone who is a serious heavy duty OS2 based boot
manager person to loose all their control over the boot process to a system
they are experimenting with as a possible one shot, the need to warn them about
a possible pitfall of having Linux replace their well understood boot loader
with it's own is a required warning. 

Once someone is comfortable with the Linux environment and changing the boot
loader options and has a safe copy of their existing OS2 system they can
experiment with, then by all means experiment with Grub or LILO for use as a
boot manager. But not for an initial test. 

Dave Calafrancesco, Team OS/2
dave@drakkar.org

... They got the library at Alexandria, they're not getting mine! 
--- 
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