I think you were supposed to remove the dasd=  - not the root=

Scott Rohling

On Wed, Aug 15, 2012 at 7:16 AM, Dean, David (I/S) <[email protected]>wrote:

> Mark, here you go.
>
> Original zipl.conf
>
> [ipl]
>     image = /boot/image
>     target = /boot/zipl
>     ramdisk = /boot/initrd,0x4000000
>     parameters = "root=/dev/dasda1 dasd=202,700-730 TERM=dumb"
>
> run zipl
>
> Server comes up fine.
>
> Now:
>
> CHANGE zipl.conf to remove parameter root=/dev/dasda1 and run zipl
>
> Now I get this during boot
>
> dasd(eckd): 0.0.0202: 3390/0C(CU:3990/01) Cyl:8016 Head:15 Sec:224
> dasd(eckd): 0.0.0202: (4kB blks): 5771520kB at 48kB/trk compatible disk
> layout
>  dasda:VOL1/  0X0202: dasda1
> Loading dasd_fba_mod
> Loading jbd
> Loading ext3
> Waiting for device /dev/dasdb1 to appear:
> ..............................not fou
> d -- exiting to /bin/sh
>
>
>
>
>
>
>
> -----Original Message-----
> From: Linux on 390 Port [mailto:[email protected]] On Behalf Of
> Mark Post
> Sent: Tuesday, August 14, 2012 4:28 PM
> To: [email protected]
> Subject: Re: zipl
>
> >>> On 8/14/2012 at 03:59 PM, "Dean, David (I/S)" <[email protected]>
> wrote:
> > We have gotten in to trouble twice now with zipl.conf.  We are on
> > 10.3, upgrading to 10.4 then to 11.2.  We have removed DASD in the
> > past - USER DIRECTORY - and when we boot again without running zipl we
> > get problems with it trying to load the old DASD def.  I do not have,
> > I recently discovered, an adequate knowledge of zipl -  working on
> > that -  but if anyone has directions to a good explanation (I like
> > flow charts.)
> >
> > Now the real question.  A friend asked the question, "why not run zipl
> > at boot?"  and I said "hmmmmmm".
> >
> > Good? Bad? Ugly?
>
> I don't understand what is meant by running "zipl at boot," but I don't
> think that matters much.  There is no reason to update /etc/zipl.conf at
> all when adding/removing DASD on SLES10 or SLES11 systems.  Just don't do
> it.  In fact, I would recommend removing any "dasd=" parameters from
> zipl.conf and then rebuilding your initrd and re-running zipl.  To test
> that out
> - Duplicate one of your menu entries in zipl.conf
> - Rename the menu entry to something unique
> - Add the new menu entry to the :menu list
> - Remove the "dasd=" list from the "parameters-" line
> - Re-run mkinitrd and zipl
> - Reboot and select the new menu entry.
>
> If things work as expected, do it for the rest of your menu entries.  If
> not, come back here with details.
>
>
> Mark Post
>
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