[CentOS] Building a live CD and live PXE
Johnny Hughes
mailing-lists at hughesjr.com
Sat Aug 12 11:25:18 UTC 2006
On Sat, 2006-08-12 at 06:21 -0500, Johnny Hughes wrote:
> On Sat, 2006-08-12 at 07:51 -0300, Eduardo Grosclaude wrote:
> >
> >
> > On 8/12/06, Johnny Hughes <mailing-lists at hughesjr.com> wrote:
> > On Fri, 2006-08-11 at 15:49 +0100, Ron Yorston wrote:
> > > "Eduardo Grosclaude" <eduardo.grosclaude at gmail.com> wrote:
> > > >Great! I was just looking for this! Unfortunately there
> > seems to be
> > > >something missing: by the time we run the first yum
> > command, there's no
> > > >distroverpkg package installed under $LIVE to query for
> > $releasever.
> > > >---------------
> > > >Should the user install centos-release RPM with prefix
> > equal to $LIVE
> > > >beforehand?
> > > >Or is there any other easy but correct way to pass this
> > variable to yum?
> > >
> > > I got around this by editing my yum repo files to replace
> > $releasever
> > > with 4. Which is horrible, so I too would like to know if
> > there's a
> > > better way.
> > >
> > > I still can't get it to work, though. I do get about 90MB
> > of stuff
> > > installed, as promised, but there are lots of '%post(...)
> > scriptlet
> > > failed' messages during the installation. Although many
> > things are
> > > installed into the chroot area there are clearly some things
> > missing.
> > > The first command I typed in the chroot was 'ls',
> > but /bin/ls isn't
> > > there even though, according to yum.log, coreutils was
> > installed.
> > >
> > > Actually, I was able to scroll back far enough to see this
> > during the
> > > installation:
> > >
> > > error: %pre(coreutils-5.2.1-31.2.i386) scriptlet failed,
> > exit status 255
> > > error: install: %pre scriptlet failed (2), skipping
> > coreutils-5.2.1-31.2
> > >
> > > Ron
> >
> > If you can install centos-release into the chroot, it should
> > then return
> > 4.
> >
> > Or editing the yum repo file and addding 4 is OK.
> >
> > I downloaded the latest centos-release rpm and tried to install it
> > into $LIVE with rpm relocate feature. This has to be done with --force
> > as rpm thinks it is already installed. Despite the rpm being "no
> > relocatable" as per "rpm -qpi", this works, populating $LIVE/etc and
> > friends.
> > However, after this, yum keeps giving the same error as before.
> >
> >
> > Brutally replacing $releasever by "4" in CentOS-Base.repo seems to
> > convince yum to work.
> > But then doing "yum -c $LIVE/etc/yum.conf --installroot=$LIVE install
> > centos-release" proceeds to _install_ the same package that rpm had
> > previously _installed_... hmmmm... :P
> >
> > --
>
> when using RPM to install centos-release initially ... use the --root
> function like this:
>
> rpm -ivh --root $LIVE centos-release
^^^^^^^ - here would go the rest
of the rest of the rpm name :)
> That SHOULD work.
>
> I haven't studied John's scripts .. but also important is properly
> mounting /dev, /proc, /sys into the chroot as well.
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