Updated installation images for Debian Ports 2019-05-09

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Updated installation images for Debian Ports 2019-05-09

John Paul Adrian Glaubitz
Hello!

I just uploaded updated installation images 2019-05-09 for the
following Debian Ports architectures:

 * alpha
 * hppa
 * ia64
 * m68k
 * powerpc
 * ppc64
 * sh4
 * sparc64

I uploaded both CD images [1] as well as netboot images [2].

Please test those images and report back over the mailing list for
the corresponding architecture.

Known issues:

 * alpha
   - There have been reports about missing firmware for storage devices.
     The firmware required for these devices is located in the
     "firmware-linux" and "firmware-linux-nonfree" packages but currently
     don't have a floppy driver in debian-installer to load additional
     firmware. I will figure out how to build CD images including firmware
     similar to the images available for i386 and amd64.
   - The images now includes the pata-modules package so users previously
     missing PATA drivers should be able to install their machines now.
 * hppa
   - No known issues and changes.
 * ia64
   - The kernel might be unstable during install
     (try passing "hardened_usercopy=off" at the boot prompt,
      e.g. "install hardened_usercopy=off").
   - If the machine locks up during boot with a radeon GPU,
     try passing "modprobe_blacklist=radeon nomodeset".
   - The installer has been switched to boot using GRUB now,
     ELILO is no longer available.
 * m68k
   - The drivers for IDE hardware may have to be loaded manually, e.g.:
     + modprobe pata_gayle
     + modprobe pata_falcon
   - There is no automatic installation of the bootloader yet,
     users have to boot the kernel and initrd manually after
     installation.
 * powerpc/ppc64
   - The bootloader installation still defaults to Yaboot and
     is being switched to GRUB for IBM POWER and PowerMacs,
     please report any issues you find.
   - Unfortunately, upgrading the GRUB package will currently
     render PowerMacs unbootable. See this thread for more:
     https://lists.debian.org/debian-powerpc/2019/04/msg00165.html
   - On some machines, the fans might produce a lot of noise,
     this can be addressed by manually the windfarm kernel
     modules:
     + modprobe windfarm_core
   - The installer has been switched to boot using GRUB now,
     Yaboot is still in the archives but will be removed
 * sh4
   - There is no CD image, installation has to be performed
     using the debian-installer images.
   - Currently supported targets are Renesas SH-7785LCR and
     SH-7751R, the latter should be identical to qemu-sh4.
   - debian-installer for sh4 is completely untested, please
     test with QEMU and report back.
   - The filenames for kernel and initrd still contain an
      old 2.6.32.5 kernel version. This can be ignored.
 * sparc64
   - Installation over a serial console is currently broken
     on sparc64 due to a bug in the rootskel package
     (can also be considered a kernel bug), see: #926539.
     Use any image before 2019-04-06 as workaround.
   - The installer has been switched to boot using GRUB now,
     SILO is no longer available.

Important:

When reporting issues or bugs, please include the syslog
from your installation in the bug report/mail. The log
file can be access when switching to another console using
<Alt>+<Cursor> for normal installations or <Ctrl>+<a>+<n>
when installing over a serial console. I also need to know
what hardware was used, which installation steps (normal
vs. expert) and which image was used.

I am currently collecting bug reports but cannot push the fixes
immediately as the imminent Debian Buster release means that
debian-installer and components are effectively frozen.

Thanks,
Adrian

> [1] https://cdimage.debian.org/cdimage/ports/2019-05-09/
> [2] https://cdimage.debian.org/cdimage/ports/debian-installer/

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - [hidden email]
`. `'   Freie Universitaet Berlin - [hidden email]
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2
On 5/9/19 12:24 PM, John Paul Adrian Glaubitz wrote:

> Hello!
>
> I just uploaded updated installation images 2019-05-09 for the
> following Debian Ports architectures:
>
>   * alpha
>   * hppa
>   * ia64
>   * m68k
>   * powerpc
>   * ppc64
>   * sh4
>   * sparc64

I tried to breath life into an old Netra which was just too old for
the task. Are you aware of any issues with the M3000 type machine?

Or even M4000 ?


--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional

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Re: Updated installation images for Debian Ports 2019-05-09

John Paul Adrian Glaubitz
On 5/9/19 6:29 PM, Dennis Clarke wrote:
> I tried to breath life into an old Netra which was just too old for
> the task. Are you aware of any issues with the M3000 type machine?
>
> Or even M4000 ?
I have never touched any of those machines, but from what I know some of
the Fujitsu machines aren't supported by the Linux kernel.

Frank knows more on this.

Adrian

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - [hidden email]
`. `'   Freie Universitaet Berlin - [hidden email]
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2
On 5/9/19 12:32 PM, John Paul Adrian Glaubitz wrote:
> On 5/9/19 6:29 PM, Dennis Clarke wrote:
>> I tried to breath life into an old Netra which was just too old for
>> the task. Are you aware of any issues with the M3000 type machine?
>>
>> Or even M4000 ?
> I have never touched any of those machines, but from what I know some of
> the Fujitsu machines aren't supported by the Linux kernel.

Oh dear.

Currently I have a machine sitting around doing a lot of nothing all
day and running Solaris 10 :

jupiter #
jupiter # uname -a
SunOS jupiter 5.10 Generic_150400-65 sun4u sparc SUNW,SPARC-Enterprise

jupiter # psrinfo -pv
The physical processor has 8 virtual processors (0-7)
   SPARC64-VII+ (portid 1024 impl 0x7 ver 0xa1 clock 2860 MHz)

jupiter # prtconf -v | grep 'Memory'
Memory size: 65536 Megabytes
jupiter #

Seems a waste really.

Dennis

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Re: Updated installation images for Debian Ports 2019-05-09

John Paul Adrian Glaubitz
On 5/9/19 6:34 PM, Dennis Clarke wrote:
>> I have never touched any of those machines, but from what I know some of
>> the Fujitsu machines aren't supported by the Linux kernel.
>
> Oh dear.

Well, you can try whether it boots.

Adrian

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - [hidden email]
`. `'   Freie Universitaet Berlin - [hidden email]
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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Re: Updated installation images for Debian Ports 2019-05-09

Frank Scheiner
In reply to this post by Dennis Clarke-2
Hi Dennis,

On 5/9/19 18:29, Dennis Clarke wrote:

> On 5/9/19 12:24 PM, John Paul Adrian Glaubitz wrote:
>> Hello!
>>
>> I just uploaded updated installation images 2019-05-09 for the
>> following Debian Ports architectures:
>>
>>   * alpha
>>   * hppa
>>   * ia64
>>   * m68k
>>   * powerpc
>>   * ppc64
>>   * sh4
>>   * sparc64
>
> I tried to breath life into an old Netra which was just too old for
> the task. Are you aware of any issues with the M3000 type machine?
>
> Or even M4000 ?

I'm starting to wonder if my mails about "Linux not working on Fujitsu's
SPARC64 V(+) and possibly later processors" don't reach you or if you
just ignore them. E.g. I sent [1] directly to you and the debian-sparc
list about a week ago and seem to remember that we "talked" about this
same topic already last year. Nevertheless, maybe you just try if your
Mx000s boot the installer ISO, at least GRUB should work.

[1]: https://lists.debian.org/debian-sparc/2019/05/msg00000.html

Cheers,
Frank

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2
On 5/9/19 1:35 PM, Frank Scheiner wrote:

> Hi Dennis,
>
> On 5/9/19 18:29, Dennis Clarke wrote:
>> On 5/9/19 12:24 PM, John Paul Adrian Glaubitz wrote:
>>> Hello!
>>>
>>> I just uploaded updated installation images 2019-05-09 for the
>>> following Debian Ports architectures:
>>>
>>>   * alpha
>>>   * hppa
>>>   * ia64
>>>   * m68k
>>>   * powerpc
>>>   * ppc64
>>>   * sh4
>>>   * sparc64
>>
>> I tried to breath life into an old Netra which was just too old for
>> the task. Are you aware of any issues with the M3000 type machine?
>>
>> Or even M4000 ?
>
> I'm starting to wonder if my mails about ...

No I am not ignoring you.

I simply didn't recall over my coffee this morning.

I have not looked at linux on sparc in ... nearly forever.  Possibly an
actual forever. There is no reason to think about it. Now I see from my
hardware list on hand there is even less reason to even bother testing.

Thanks for listening.


--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional

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Re: Updated installation images for Debian Ports 2019-05-09

Frank Scheiner
On 5/9/19 19:42, Dennis Clarke wrote:

> On 5/9/19 1:35 PM, Frank Scheiner wrote:
>> Hi Dennis,
>>
>> On 5/9/19 18:29, Dennis Clarke wrote:
>>> On 5/9/19 12:24 PM, John Paul Adrian Glaubitz wrote:
>>>> Hello!
>>>>
>>>> I just uploaded updated installation images 2019-05-09 for the
>>>> following Debian Ports architectures:
>>>>
>>>>   * alpha
>>>>   * hppa
>>>>   * ia64
>>>>   * m68k
>>>>   * powerpc
>>>>   * ppc64
>>>>   * sh4
>>>>   * sparc64
>>>
>>> I tried to breath life into an old Netra which was just too old for
>>> the task. Are you aware of any issues with the M3000 type machine?
>>>
>>> Or even M4000 ?
>>
>> I'm starting to wonder if my mails about ...
>
> No I am not ignoring you.
>
> I simply didn't recall over my coffee this morning.
>
> I have not looked at linux on sparc in ... nearly forever.  Possibly an
> actual forever. There is no reason to think about it. Now I see from my
> hardware list on hand there is even less reason to even bother testing.
>
> Thanks for listening.

Please don't mind, I was just a little upset, as I assumed my mails on
this topic were just wasted.

[2] also has some further reading about this topic. Maybe you get in
touch with Meelis Roos, who started a thread titled "Adding support for
Fujitsu SPARC64 machines?" on the linux-sparc mailing list (see [3])
some years ago. Maybe this can be revived.

[2]: https://wiki.debian.org/Sparc64#Installing_the_Debian_SPARC64_Port

[3]: https://marc.info/?l=linux-sparc&m=142067252101925&w=2

Cheers,
Frank

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2
On 5/9/19 1:52 PM, Frank Scheiner wrote:

> On 5/9/19 19:42, Dennis Clarke wrote:
>> On 5/9/19 1:35 PM, Frank Scheiner wrote:
>>> Hi Dennis,
>>>
>>> On 5/9/19 18:29, Dennis Clarke wrote:
>>>> On 5/9/19 12:24 PM, John Paul Adrian Glaubitz wrote:
>>>>> Hello!
>>>>>
>>>>> I just uploaded updated installation images 2019-05-09 for the
>>>>> following Debian Ports architectures:
>>>>>
>>>>>   * alpha
>>>>>   * hppa
>>>>>   * ia64
>>>>>   * m68k
>>>>>   * powerpc
>>>>>   * ppc64
>>>>>   * sh4
>>>>>   * sparc64
>>>>
>>>> I tried to breath life into an old Netra which was just too old for
>>>> the task. Are you aware of any issues with the M3000 type machine?
>>>>
>>>> Or even M4000 ?
>>>
>>> I'm starting to wonder if my mails about ...
>>
>> No I am not ignoring you.
>>
>> I simply didn't recall over my coffee this morning.
>>
>> I have not looked at linux on sparc in ... nearly forever.  Possibly an
>> actual forever. There is no reason to think about it. Now I see from my
>> hardware list on hand there is even less reason to even bother testing.
>>
>> Thanks for listening.
>
> Please don't mind, I was just a little upset, as I assumed my mails on
> this topic were just wasted.
>
> [2] also has some further reading about this topic. Maybe you get in
> touch with Meelis Roos, who started a thread titled "Adding support for
> Fujitsu SPARC64 machines?" on the linux-sparc mailing list (see [3])
> some years ago. Maybe this can be revived.
>
> [2]: https://wiki.debian.org/Sparc64#Installing_the_Debian_SPARC64_Port
>
> [3]: https://marc.info/?l=linux-sparc&m=142067252101925&w=2
>

I appreciate your patience and perserverance. I seem to have way way too
many little irons in the fire and too many machines running to recall
all the bits about all of them.  I don't think I am alone in that
experience.

In my mind an Oracle M4000 with 256G of memory and a stack of processor
cores is a terrible waste.  Baffles me that it can not run with even
some basic sparc v9 type mode. Regardless the devices are most likely an
issue also.


--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional

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Re: Updated installation images for Debian Ports 2019-05-09

Frank Scheiner
On 5/9/19 20:01, Dennis Clarke wrote:

>>>>> I tried to breath life into an old Netra which was just too old for
>>>>> the task. Are you aware of any issues with the M3000 type machine?
>>>>>
>>>>> Or even M4000 ?
>>>>
>>>> I'm starting to wonder if my mails about ...
>>>
>>> No I am not ignoring you.
>>>
>>> I simply didn't recall over my coffee this morning.
>>>
>>> I have not looked at linux on sparc in ... nearly forever.  Possibly an
>>> actual forever. There is no reason to think about it. Now I see from my
>>> hardware list on hand there is even less reason to even bother testing.
>>>
>>> Thanks for listening.
>>
>> Please don't mind, I was just a little upset, as I assumed my mails on
>> this topic were just wasted.
>>
>> [2] also has some further reading about this topic. Maybe you get in
>> touch with Meelis Roos, who started a thread titled "Adding support for
>> Fujitsu SPARC64 machines?" on the linux-sparc mailing list (see [3])
>> some years ago. Maybe this can be revived.
>>
>> [2]: https://wiki.debian.org/Sparc64#Installing_the_Debian_SPARC64_Port
>>
>> [3]: https://marc.info/?l=linux-sparc&m=142067252101925&w=2
>>
>
> I appreciate your patience and perserverance. I seem to have way way too
> many little irons in the fire and too many machines running to recall
> all the bits about all of them.  I don't think I am alone in that
> experience.
>
> In my mind an Oracle M4000 with 256G of memory and a stack of processor
> cores is a terrible waste.  Baffles me that it can not run with even
> some basic sparc v9 type mode. Regardless the devices are most likely an
> issue also.

It can't be that that much of an issue, because OpenBSD runs on these
machines (according to [4] and my tests on serveral PRIMEPOWER 250s).
And for the Linux kernel you can actually see some Linux kernel messages
before the machine experiences a red state exception...

[4]: http://www.openbsd.org/sparc64.html

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2

>
> It can't be that that much of an issue, because OpenBSD runs on these
> machines (according to [4] and my tests on serveral PRIMEPOWER 250s).
> And for the Linux kernel you can actually see some Linux kernel messages
> before the machine experiences a red state exception...
>
> [4]: http://www.openbsd.org/sparc64.html

I avoid the openbsd people and try to just look to freebsd :

     https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233579

Which actually is making good progress in the IBM Power9 world on the
TALOS as well as on ye old ppc64 PowerMac units and sparc is in progress
also. With ZFS everywhere.

Anyways, that is well off topic.

dc

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Re: Updated installation images for Debian Ports 2019-05-09

Frank Scheiner
In reply to this post by John Paul Adrian Glaubitz
Hi Adrian,

On 5/9/19 18:24, John Paul Adrian Glaubitz wrote:

> I just uploaded updated installation images 2019-05-09 for the
> following Debian Ports architectures:
> [...]
>   * sparc64
>
> I uploaded both CD images [1] as well as netboot images [2].
>
> Please test those images and report back over the mailing list for
> the corresponding architecture.
>
> Known issues:
> [...]
>   * sparc64
>     - Installation over a serial console is currently broken
>       on sparc64 due to a bug in the rootskel package
>       (can also be considered a kernel bug), see: #926539.
>       Use any image before 2019-04-06 as workaround.

Looks like this doesn't affect sun4u machines, at least this ISO worked
for my v245 using the serial console without any problems. Nice work! :-D

Just one odd thing: I didn't see any kernel messages when booting from
the installer disc. I assumed that there might be a `quiet` in the
kernel command line, but editing the GRUB menu options showed no
arguments for the kernel command line at all for the "default" option,
just "boot_one" IIRC.

Cheers,
Frank

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Re: Updated installation images for Debian Ports 2019-05-09

Meelis Roos
In reply to this post by Frank Scheiner
> [2] also has some further reading about this topic. Maybe you get in
> touch with Meelis Roos, who started a thread titled "Adding support for
> Fujitsu SPARC64 machines?" on the linux-sparc mailing list (see [3])
> some years ago. Maybe this can be revived.

> [3]: https://marc.info/?l=linux-sparc&m=142067252101925&w=2

I'm actually here on this list. But no, nothing came out of my plan -
because of lack of time from my side and the student going away.

I still have the PP450 wired up and ready to run if power is turned on from
xscf, so if there is someone else taking it on, I can offer PP450 access.
M4000, PP650 and PP250 are away in storage.

--
Meelis Roos

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2
In reply to this post by Frank Scheiner
On 5/9/19 3:31 PM, Frank Scheiner wrote:

> Hi Adrian,
>
> On 5/9/19 18:24, John Paul Adrian Glaubitz wrote:
>> I just uploaded updated installation images 2019-05-09 for the
>> following Debian Ports architectures:
>> [...]
>>   * sparc64
>>
>> I uploaded both CD images [1] as well as netboot images [2].
>>
>> Please test those images and report back over the mailing list for
>> the corresponding architecture.
>>
>> Known issues:
>> [...]
>>   * sparc64
>>     - Installation over a serial console is currently broken
>>       on sparc64 due to a bug in the rootskel package
>>       (can also be considered a kernel bug), see: #926539.
>>       Use any image before 2019-04-06 as workaround.
>
> Looks like this doesn't affect sun4u machines, at least this ISO worked
> for my v245 using the serial console without any problems. Nice work! :-D
>
> Just one odd thing: I didn't see any kernel messages when booting from
> the installer disc. I assumed that there might be a `quiet` in the
> kernel command line, but editing the GRUB menu options showed no
> arguments for the kernel command line at all for the "default" option,
> just "boot_one" IIRC.

Given that it works on a sun4u then I am guessing that a Sunblade 2000
should be perfect for this sort of thing. I know that I have one of
those in the warehouse. However I think they need FCAL disks. Anyways I
will give that a look see and also I hope serial console works out of
the box.


--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2
In reply to this post by Meelis Roos
On 5/9/19 3:33 PM, Meelis Roos wrote:

>> [2] also has some further reading about this topic. Maybe you get in
>> touch with Meelis Roos, who started a thread titled "Adding support for
>> Fujitsu SPARC64 machines?" on the linux-sparc mailing list (see [3])
>> some years ago. Maybe this can be revived.
>
>> [3]: https://marc.info/?l=linux-sparc&m=142067252101925&w=2
>
> I'm actually here on this list. But no, nothing came out of my plan -
> because of lack of time from my side and the student going away.
>
> I still have the PP450 wired up and ready to run if power is turned on from
> xscf, so if there is someone else taking it on, I can offer PP450 access.
> M4000, PP650 and PP250 are away in storage.
>

The big blocker for me is that the M4000 needs 240V power supply.
Otherwise I would run it at home.


--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional

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Re: Updated installation images for Debian Ports 2019-05-09

John Paul Adrian Glaubitz
In reply to this post by Frank Scheiner
On 5/9/19 9:31 PM, Frank Scheiner wrote:
>>     - Installation over a serial console is currently broken
>>       on sparc64 due to a bug in the rootskel package
>>       (can also be considered a kernel bug), see: #926539.
>>       Use any image before 2019-04-06 as workaround.
>
> Looks like this doesn't affect sun4u machines, at least this ISO worked
> for my v245 using the serial console without any problems. Nice work! :-D

To be clear: This affects machines using the ttyHV serial console driver
that is used for LDOMs. This does not affect machines using other serial
console drivers. It's a bug in the ttyHV driver and I'm still trying to
convince upstream to fix it.

> Just one odd thing: I didn't see any kernel messages when booting from
> the installer disc. I assumed that there might be a `quiet` in the
> kernel command line, but editing the GRUB menu options showed no
> arguments for the kernel command line at all for the "default" option,
> just "boot_one" IIRC.
This is in line with all the other architectures. The GRUB configuration
comes from there. Best would be to read the installation manual for ppc64el
to see if there are any options documented which allow verbose booting.

Adrian

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - [hidden email]
`. `'   Freie Universitaet Berlin - [hidden email]
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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Re: Updated installation images for Debian Ports 2019-05-09

John Paul Adrian Glaubitz
In reply to this post by Dennis Clarke-2
On 5/9/19 9:55 PM, Dennis Clarke wrote:
> Given that it works on a sun4u then I am guessing that a Sunblade 2000
> should be perfect for this sort of thing. I know that I have one of
> those in the warehouse. However I think they need FCAL disks. Anyways I
> will give that a look see and also I hope serial console works out of
> the box.

Unless you are installing inside an LDOM, your serial console will be fine.

Adrian

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - [hidden email]
`. `'   Freie Universitaet Berlin - [hidden email]
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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Re: Updated installation images for Debian Ports 2019-05-09

John Paul Adrian Glaubitz
In reply to this post by Dennis Clarke-2
On 5/9/19 9:59 PM, Dennis Clarke wrote:
> The big blocker for me is that the M4000 needs 240V power supply.
> Otherwise I would run it at home.
I thought you can get 240 volts in the US when using a two-phase
power outlet.

Adrian

--
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - [hidden email]
`. `'   Freie Universitaet Berlin - [hidden email]
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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Re: Updated installation images for Debian Ports 2019-05-09

James Clarke-2
In reply to this post by Frank Scheiner
On 9 May 2019, at 20:31, Frank Scheiner <[hidden email]> wrote:

>
> Hi Adrian,
>
> On 5/9/19 18:24, John Paul Adrian Glaubitz wrote:
>> I just uploaded updated installation images 2019-05-09 for the
>> following Debian Ports architectures:
>> [...]
>>  * sparc64
>>
>> I uploaded both CD images [1] as well as netboot images [2].
>>
>> Please test those images and report back over the mailing list for
>> the corresponding architecture.
>>
>> Known issues:
>> [...]
>>  * sparc64
>>    - Installation over a serial console is currently broken
>>      on sparc64 due to a bug in the rootskel package
>>      (can also be considered a kernel bug), see: #926539.
>>      Use any image before 2019-04-06 as workaround.
>
> Looks like this doesn't affect sun4u machines, at least this ISO worked
> for my v245 using the serial console without any problems. Nice work! :-D

Yes; it's an issue with how Linux exposes sun4v hypervisor consoles.

James

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Re: Updated installation images for Debian Ports 2019-05-09

Dennis Clarke-2
In reply to this post by John Paul Adrian Glaubitz
On 5/9/19 4:02 PM, John Paul Adrian Glaubitz wrote:
> On 5/9/19 9:59 PM, Dennis Clarke wrote:
>> The big blocker for me is that the M4000 needs 240V power supply.
>> Otherwise I would run it at home.
> I thought you can get 240 volts in the US when using a two-phase
> power outlet.

Well a UPS is needed also. So an APC5000 series or similar as well as
the 240 volt supply.  No matter how I slice it there is a bucket of
money to spend to get the same performance a ninety dollar ASUS arm7
Tinkerboard can do.

However 256G of memory and 16 processor cores at 2.66GHz is real hard
to get anywhere else.

--
Dennis Clarke
RISC-V/SPARC/PPC/ARM/CISC
UNIX and Linux spoken
GreyBeard and suspenders optional

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