[parisc-linux] Booting to ISL with Linux installed

[parisc-linux] Booting to ISL with Linux installed

[Björn Bylander]

Hello,

I recently acquired a HP 712/80 system. I've installed PA-RISC Linux =
0.9.3 on it and it runs fine.
I've got one problem though. I don't know how to get to ISL after I =
installed Linux.
The reason I want to use ISL is that I want to (try) to make the machine =
use a serial console.
Before I installed Linux the machine booted into ISL automatically as =
the HD was wiped (or at least not bootable) but if I try to boot to ISL =
now with 'boot pri isl' (from BOOT_ADMIN) I only get to the =
'configuration mode' of PALO where you can enter the kernel and other =
boot stuff.

All in all, how can I get to the ISL> prompt so that I can use 'conspath =
2/0/4.0x283'?

Thanks in advance,
Bj=F6rn Bylander

[parisc-linux] partitioned md to enable root on raid

[Peter Mottram]

In order to use md on root devices with parisc there must be kernel
support for partitioned md (due to F0 partition). This is of course not a
requirement for i386 & the patch to enable this (which needs a new major
number) has not been accepted.

Is there any chance of adding this patch into parisc? Maybe due to the
special requirements of parisc then Linus might eventually accept the
requirement for this extra major number?

The current patch uses major 60 which is currently used by PDCONS. I am no
kernel hacker and am uncomfortable simply adding this patch with a
different major number.

Can anyone see any reason to not simply change the major to 61? Does the
patch look OK as it is for addition to parisc? (ignoring line numbers of
course)

PeteM

the patch is from:
http://cgi.cse.unsw.edu.au/~neilb/patches/linux/2.4.14/patch-J-MdpMajor

and is:

--- ./init/main.c       2001/11/06 04:43:07     1.1
+++ ./init/main.c       2001/11/06 04:43:12     1.2
@@ -188,6 +188,24 @@
        { "add",     0x1c30 },
        { "ade",     0x1c40 },
        { "fd",      0x0200 },
+#ifdef MDP_MAJOR
+       { "mda",     (MDP_MAJOR<<8) | 0},
+       { "mdb",     (MDP_MAJOR<<8) | 1},
+       { "mdc",     (MDP_MAJOR<<8) | 2},
+       { "mdd",     (MDP_MAJOR<<8) | 3},
+       { "mde",     (MDP_MAJOR<<8) | 4},
+       { "mdf",     (MDP_MAJOR<<8) | 5},
+       { "mdg",     (MDP_MAJOR<<8) | 6},
+       { "mdh",     (MDP_MAJOR<<8) | 7},
+       { "mdi",     (MDP_MAJOR<<8) | 8},
+       { "mdj",     (MDP_MAJOR<<8) | 9},
+       { "mdk",     (MDP_MAJOR<<8) | 10},
+       { "mdl",     (MDP_MAJOR<<8) | 11},
+       { "mdm",     (MDP_MAJOR<<8) | 12},
+       { "mdn",     (MDP_MAJOR<<8) | 13},
+       { "mdo",     (MDP_MAJOR<<8) | 14},
+       { "mdp",     (MDP_MAJOR<<8) | 15},
+#endif
        { "md",      0x0900 },
        { "xda",     0x0d00 },
        { "xdb",     0x0d40 },
--- ./include/linux/major.h     2001/11/06 04:43:07     1.1
+++ ./include/linux/major.h     2001/11/06 04:43:13     1.2
@@ -87,6 +87,8 @@

 #define LVM_BLK_MAJOR  58      /* Logical Volume Manager */

+#define MDP_MAJOR      60      /* MD with partitions */
+
 #define SCSI_DISK1_MAJOR       65
 #define SCSI_DISK2_MAJOR       66
 #define SCSI_DISK3_MAJOR       67

Re: [parisc-linux] partitioned md to enable root on raid

[Grant Grundler]

Peter Mottram wrote:
> In order to use md on root devices with parisc there must be kernel
> support for partitioned md (due to F0 partition).

Are you implying that CONFIG_MD can only use full disks?
linux/Documentation/Configure.help suggests CONFIG_MD only knows
about the partitions you configure it for.

I've never used CONFIG_MD (it's enabled) and don't understand
what F0 partition has to do with CONFIG_MD.

grant

Re: [parisc-linux] partitioned md to enable root on raid

[Peter Mottram]

On Mon, 21 Jan 2002, Grant Grundler wrote:
> Peter Mottram wrote:
> > In order to use md on root devices with parisc there must be kernel
> > support for partitioned md (due to F0 partition).
>
> Are you implying that CONFIG_MD can only use full disks?
> linux/Documentation/Configure.help suggests CONFIG_MD only knows
> about the partitions you configure it for.

You can construct MD devices out of whole disks or partitions but you
cannot partition an MD device without Neil Brown's patches. What I would
like to achieve is to construct an MD device for use as a boot disk and
then partition it including the F0 partition in order that the LIF is also
mirrored. This cannot be done with a stock kernel.

OK - maybe the answer is to construct non-mirrored F0 partitions on both
boot disks and then use the rest of the disk for MD & boot from LVM
partitions. Here's the next question - does palo understand how to
boot from LVM?

PeteM

Re: [parisc-linux] partitioned md to enable root on raid

[Grant Grundler]

Peter Mottram wrote:
> You can construct MD devices out of whole disks or partitions but you
> cannot partition an MD device without Neil Brown's patches.

Ok. I don't think we really need or want this right now.

I would prefer patches that makes it harder for linus to accept our bits
get introduced right now. parisc-linux maintainers "own" arch/parisc
but have to fight for changes in other parts of the kernel like anyone
else. Even though, this patch sounds like a good thing.

> What I would
> like to achieve is to construct an MD device for use as a boot disk and
> then partition it including the F0 partition in order that the LIF is also
> mirrored. This cannot be done with a stock kernel.

You don't really need to mirror F0. The content is static for all
intents and purposes. One could mirror /  (and /boot if that's seperate)
across two partitions on seperate physcial disks and get basically the
same result.

> OK - maybe the answer is to construct non-mirrored F0 partitions on both
> boot disks and then use the rest of the disk for MD & boot from LVM
> partitions.

Exactly.

> Here's the next question - does palo understand how to
> boot from LVM?

No. HPUX LVM is derived from the same original sources as linux's LVM
but is not compatible. HP cannot release the disk layout since it's not
HP's to give away. MKP tried to reverse engineer it early in the port
and gave up after a while. While it would make migration from HPUX to
parisc-linux easier, I don't see it as essential.

grant

Re: [parisc-linux] partitioned md to enable root on raid

[Matthew Wilcox]

On Mon, Jan 21, 2002 at 07:20:33PM -0700, Grant Grundler wrote:
> No. HPUX LVM is derived from the same original sources as linux's LVM
> but is not compatible.

This is not true.  Linux's LVM is an independent implementation.

-- 
Revolutions do not require corporate support.

Re: [parisc-linux] partitioned md to enable root on raid

[Grant Grundler]

Matthew Wilcox wrote:
> This is not true.  Linux's LVM is an independent implementation.

Sorry - my bad. I meant the disk layout. At least that's how I remember
Martin Petersen explained the issues 2 years ago.

thanks,
grant

Re: [parisc-linux] partitioned md to enable root on raid

[Grant Grundler]

Grant Grundler wrote:
> I would prefer patches that makes it harder for linus to accept our bits
> get introduced right now.

er, *not* get introduced...

sorry,
grant

Re: [parisc-linux] partitioned md to enable root on raid

[Martin K. Petersen]

>>>>> "Grant" == Grant Grundler <grundler@dsl2.external.hp.com> writes:

>> Here's the next question - does palo understand how to boot from
>> LVM?

Grant> No. HPUX LVM is derived from the same original sources as
Grant> linux's LVM but is not compatible. 

Linux LVM is closely modeled after the HP/UX LVM from a sysadmin
perspective.  But there's no code sharing involved.

What I really said was that IBM wrote the original LVM and donated the
code to OSF.  HP then picked it up and ported it to HP/UX.  So AIX,
OSF/1 and HP/UX volume managers share a common ancestor.  These days
they have diverted greatly, though.


Grant> HP cannot release the disk layout since it's not HP's to give
Grant> away. MKP tried to reverse engineer it early in the port and
Grant> gave up after a while. 

I didn't spend a lot of time on it (a couple of hours of poking).  I
also tried getting specs for the LVM metadata out of HP with no avail.

A read-only implementation for palo should be fairly trivial to write
but hardly worth the effort.


I do agree with the concensus that MD partitioning is not worth it.

Mirror the palo partition as md0, swap as md1 and / as md2.  Or
whatever.  That's the way to do it.

As long as you don't need autodetection (and you don't since PDC/IODC
don't understand MD devices anyway), you'll be fine leaving the
palo partition type as F0.

-- 
Martin K. Petersen      Cereal Bowl Engineer, Linuxcare, Inc.
http://mkp.net/         SGI XFS, Linux/PA-RISC, GNOME

Re: [parisc-linux] Booting to ISL with Linux installed

[Christoph Plattner]

The problem you have, is that you may have activated the `autoboot'
mode.
Try to interrupt the autoboot mode by pressing <ESC>. Then you can
disable
autoboot.

But this is not your major problem. The "ISL" prompt after booting a
LIF-IMAGE was a tool inside the LIF-IMAGE. The boot load PALO works
in a different way. PALO together with a recovery kernel is also in
a LIF-IMAGE but there are no tools, as you know from HP-UX to boot
a HP-UX kernel with the command "hpux" or "boot" and there are also
not tools like "IODC" or whatever they were called (I am no HP 
specialist, but I want to learn more and more ...).

So you need to have a LIF-IMAGE stored on a different place or
loaded from net including those HP-UX basic tools. Such a LIF
image canbe found on the HP-UX itself, called "uxbootlf" (AFAIK).

By the way: I am also interetsed in setting my 712/60 to serial 
console. But I heard, it is a problem to setup wrong values here,
as no device may fanctioning then. What have I to do, to restore
the machine to let's say "factory setups" ?

With friendly regards
Christoph


Björn Bylander wrote:
>
> Hello,
> 
> I recently acquired a HP 712/80 system. I've installed PA-RISC Linux 0.9.3 on it and it runs fine.
> I've got one problem though. I don't know how to get to ISL after I installed Linux.
> The reason I want to use ISL is that I want to (try) to make the machine use a serial console.
> Before I installed Linux the machine booted into ISL automatically as the HD was wiped (or at least not bootable) but if I try to boot to ISL now with 'boot pri isl' (from BOOT_ADMIN) I only get to the 'configuration mode' of PALO where you can enter the kernel and other boot stuff.
> 
> All in all, how can I get to the ISL> prompt so that I can use 'conspath 2/0/4.0x283'?
> 
> Thanks in advance,
> Björn Bylander
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

RE: [parisc-linux] Booting to ISL with Linux installed

[Björn Bylander]

Ok, is there no way to do the equivalent of "conspath" under Linux, =
through /dev/nvram perhaps?
If not, is there any way I can get the "uxbootlf" image without buying a =
license for the appropriate HPUX version?

Best regards,
Bj=F6rn
> -----Original Message-----
> From: parisc-linux-admin@lists.parisc-linux.org
> [mailto:parisc-linux-admin@lists.parisc-linux.org]On Behalf Of =
Christoph
> Plattner
> Sent: Sunday, January 20, 2002 5:17 PM
> To: Bj=F6rn Bylander
> Cc: parisc-linux@lists.parisc-linux.org
> Subject: Re: [parisc-linux] Booting to ISL with Linux installed
>=20
>=20
> The problem you have, is that you may have activated the `autoboot'
> mode.
> Try to interrupt the autoboot mode by pressing <ESC>. Then you can
> disable
> autoboot.
>=20
> But this is not your major problem. The "ISL" prompt after booting a
> LIF-IMAGE was a tool inside the LIF-IMAGE. The boot load PALO works
> in a different way. PALO together with a recovery kernel is also in
> a LIF-IMAGE but there are no tools, as you know from HP-UX to boot
> a HP-UX kernel with the command "hpux" or "boot" and there are also
> not tools like "IODC" or whatever they were called (I am no HP=20
> specialist, but I want to learn more and more ...).
>=20
> So you need to have a LIF-IMAGE stored on a different place or
> loaded from net including those HP-UX basic tools. Such a LIF
> image canbe found on the HP-UX itself, called "uxbootlf" (AFAIK).
>=20
> By the way: I am also interetsed in setting my 712/60 to serial=20
> console. But I heard, it is a problem to setup wrong values here,
> as no device may fanctioning then. What have I to do, to restore
> the machine to let's say "factory setups" ?
>=20
> With friendly regards
> Christoph
>=20
>=20

<original text removed>

>=20
> --=20
> -------------------------------------------------------
> private:	christoph.plattner@gmx.at
> company:	christoph.plattner@alcatel.at

Re: [parisc-linux] Booting to ISL with Linux installed

[Matt Taggart]

=?iso-8859-1?Q?Bj=F6rn_Bylander?= writes...

> If not, is there any way I can get the "uxbootlf" image without buying a =
> license for the appropriate HPUX version?

There is a uxbootlf in cvs for this purpose. It's in the build-tools
directory, or you can grab it via viewcvs at,

http://cvs.parisc-linux.org/~checkout~/build-tools/uxbootlf

BTW- I recently converted a couple 712s with serial console *back* to
graphics console since the sti-fb stuff is working so well now.

-- 
Matt Taggart        Linux Development Lab
taggart@fc.hp.com   HP Linux Systems Operation

[parisc-linux] sti console (was: Booting to ISL with Linux installed)

[Kaj-Michael Lang]

> BTW- I recently converted a couple 712s with serial console *back* to
> graphics console since the sti-fb stuff is working so well now.

This reminds me of the reason why I had to move to serial console, not
because of lack of
support but because the monitor I had at the time (brand new 19" sony)
didn't work with my
712. Or it does.. but the screen flickers sometimes with just a couple of
seconds appart, sometimes it can take a couple of minutes, but it just won't
stop. It does it with another cheap 15", but I now got a another monitor, a
17" Panasonic and the sti console work fine it, no blinking.
Does anyone know what could be the cause for the 19" sony not to function
correctly. It works fine with a PC, Mac and even an old Sun3.

--
Kaj-Michael Lang, milang@tal.org

Re: [parisc-linux] sti console (was: Booting to ISL with Linux installed)

[Bdale Garbee]

milang@tal.org (Kaj-Michael Lang) writes:

> Does anyone know what could be the cause for the 19" sony not to function
> correctly. It works fine with a PC, Mac and even an old Sun3.

Refresh rate set too high?  Try different monitor settings in the firmware.
I usually start with a resolution I think the monitor can take and 60hz and
work up from there if it's not satisfying.

Bdale

Re: [parisc-linux] sti console (was: Booting to ISL with Linux installed)

[Christoph Plattner]

Perhpas the frequency is TOO LOW !!
There are some monitors, which will not support very slow modes
any more. Or check the SYNC routing via GREEN, C-SYNC or H/V-Sync.

Bye
Christoph P.


Bdale Garbee wrote:
> 
> milang@tal.org (Kaj-Michael Lang) writes:
> 
> > Does anyone know what could be the cause for the 19" sony not to function
> > correctly. It works fine with a PC, Mac and even an old Sun3.
> 
> Refresh rate set too high?  Try different monitor settings in the firmware.
> I usually start with a resolution I think the monitor can take and 60hz and
> work up from there if it's not satisfying.
> 
> Bdale
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

Re: [parisc-linux] Booting to ISL with Linux installed

[Christoph Plattner]

Hello,

again the old question:

How is the switch to and from the console done exactly,
after I have booted the uxbootlf ?

How can I do a factory default setup, if there is going something wrong
?

With friendly regards
Christoph 


Matt Taggart wrote:
> 
> =?iso-8859-1?Q?Bj=F6rn_Bylander?= writes...
> 
> > If not, is there any way I can get the "uxbootlf" image without buying a =
> > license for the appropriate HPUX version?
> 
> There is a uxbootlf in cvs for this purpose. It's in the build-tools
> directory, or you can grab it via viewcvs at,
> 
> http://cvs.parisc-linux.org/~checkout~/build-tools/uxbootlf
> 
> BTW- I recently converted a couple 712s with serial console *back* to
> graphics console since the sti-fb stuff is working so well now.
> 
> --
> Matt Taggart        Linux Development Lab
> taggart@fc.hp.com   HP Linux Systems Operation
> 
> _______________________________________________
> parisc-linux mailing list
> parisc-linux@lists.parisc-linux.org
> http://lists.parisc-linux.org/mailman/listinfo/parisc-linux

-- 
-------------------------------------------------------
private:	christoph.plattner@gmx.at
company:	christoph.plattner@alcatel.at

Re: [parisc-linux] Booting to ISL with Linux installed

[Grant Grundler]

Christoph Plattner wrote:
> How is the switch to and from the console done exactly,
> after I have booted the uxbootlf ?

http://lists.parisc-linux.org/hypermail/parisc-linux/0420.html

Matt Taggart also once posted a more complete recipe.
If htdig didn't suck so badly I'd look for it...

> How can I do a factory default setup, if there is going something wrong
> ?

You can't. Only the factory can really do it.
It requires a special card ("Dagger") with LASI and onboard firmware.
Don't muck with this unless you really need to.

grant