[Bug 33649] Re: root raid installs have bad grub config

2008-10-10 Thread Steve Langasek
If it aborts installation, then this is clearly not the same bug at all.
The original bug report is that the system fails to boot after install,
which is entirely different.

You need to open a separate bug report for the separate issue.

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[Bug 33649] Re: root raid installs have bad grub config

2008-10-10 Thread tricky1
Who ever beleives that bugs go away by closing them on launchpad 

I have a machine with two SATA drives and the following layout:

 o sda1 100M /dos FAT16
 o sda2 large RAID 1 for \ encrypted LVM
 o sda3 small RAID 2 for \boot

 o sdb1 100M /dos FAT16
 o sdb2 large RAID 1 for \ encrypted LVM
 o sdb3 small RAID 2 for \boot

Intrepid Beta does not allow to make such installation and aborts
installation :-(

This IS the same bug for years!!!

And NO, Mr Kirkland, I will not open an new bug for this old stuff you
might have fixed a long time ago.

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[Bug 33649] Re: root raid installs have bad grub config

2008-10-10 Thread Dustin Kirkland
Please go back and read the original description of this bug.

The scenario you describe is completely different than the bug that
James Troup reported in March of 2006, which has been fixed.  I'm
closing this bug as such.

This may well merit a new bug report, but it absolutely *does not
belong* in this bug.  You may open a new bug against mdadm, providing
detailed, step-by-step instructions of exactly how to reproduce the
problem.

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-10-10 Thread Dustin Kirkland
** Changed in: debian-installer (Ubuntu)
   Status: Confirmed => Fix Released

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[Bug 33649] Re: root raid installs have bad grub config

2008-10-10 Thread tricky1
Iff Mr. Kirkland ever tried himself to install Intrepid on a pair of
REAL harddisks with mirrored /boot on both disks and encrypted
filesystem with LVM on another mirrored raid he would have found out
that ALL the problems are still present in Beta!

Colin, it's not only me beeing tired of how the server team currently
works. Please have a look a the logs of the weekly irc meeting: Not a
single word anymore about all that mess regarding raid and crypt ...

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[Bug 33649] Re: root raid installs have bad grub config

2008-10-07 Thread Colin Watson
Please confirm whether this is still present in the beta, and if it is
then exactly what the current symptoms are. Since there have been quite
a lot of changes in this area, I don't expect that it's still behaving
the same way, and something more than "bug still present" would be
useful.

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-23 Thread tricky1
Bug still present in Alpha 4

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-15 Thread Launchpad Bug Tracker
This bug was fixed in the package grub - 0.97-29ubuntu35

---
grub (0.97-29ubuntu35) intrepid; urgency=low

  [ Dustin Kirkland ]
  * debian/patches/00list: add grub-install_better_raid.diff.
  * debian/patches/grub-install_better_raid.diff: add support for writing an
MBR on each disk in an mdadm-managed RAID providing /boot (LP: #33649).

 -- Steve Langasek <[EMAIL PROTECTED]>   Fri, 15 Aug 2008
11:53:12 -0700

** Changed in: grub (Ubuntu)
   Status: New => Fix Released

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-11 Thread Dustin Kirkland
Revision 841 in lp:~kirkland/grub/33649 adds some smarts (back) into the
handling of the multiple devices on a RAID providing /boot.

Rather than using the same (hd0,0) type string for each device,
independently calculate the partition number. This is problem is
similarly reported in bug #46223, though for update-grub.

For the "hd0" bit, we take what we can find in device.map.  Also, I'm
killing the printing of device.map if installing onto a RAID, since it's
somewhat misleading.

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-11 Thread Dustin Kirkland
Per feedback from slangasek on IRC, I have another revision of the grub
patch.

This one does not assume/hard-code hd0, rather it uses the previously
existing logic to find the appropriate bios device.

And if the user passes a device for which we cannot determine the
appropriate bios device, we ask the use to either install directly to
the RAID, or define it in device.map.

My branch is updated with revision 840 on lp:~kirkland/grub/33649b/

For the purposes of review, I'm attaching the contents of debian/patches
/grub-install_better_raid.diff

:-Dustin

** Attachment added: "grub-install_better_raid.diff"
   http://launchpadlibrarian.net/16710461/grub-install_better_raid.diff

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-08 Thread Dustin Kirkland
This is the second revision of patch 2/2 for bug #33649, based on feedback 
from
slangasek. He questioned the previous revision, where I was installing GRUB
onto all devices of a RAID providing /boot, every time.

This revision will:
 1) install to all devices, if the target on the command line is /dev/md*
 2) install only to a specific RAID member, if the device on the command
line is an actively sync'd device in a RAID providing /boot
 3) Otherwise, the current behavior of grub-install operates as normal

https://code.launchpad.net/~kirkland/grub/33649b


:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-07 Thread Dustin Kirkland
Colin-

I have a proposed patch in a bzr branch of grub:
 * https://code.launchpad.net/~kirkland/grub/33649

The first patch handled grub-installer used in the debian-installer, and
this one handles grub-install (in the grub package), used in the
installed operating system thereafter.

The grub-install_better_raid.diff patch basically reverts the raid.diff
patch, replacing the (somewhat convoluted) getraid_mdadm() function with
a far simpler algorithm matching that which we use in grub-installer.

Additionally, this patch adds support to detect if /boot is on a RAID
device, and if so, we will iterate over each hard disk in the RAID
providing /boot, installing GRUB to the MBR.  I tried to match the logic
and syntax used in grub-installer as identically as possible.

If you have a /dev/md0 RAID, providing your root filesystem, consisting of 
/dev/sda1 and /dev/sdb1, using this patch, you can run any of:
 # grub-install /dev/md0
 # grub-install /dev/sda
 # grub-install /dev/sdb
 # grub-install /dev/sda1
 # grub-install /dev/sdb1
And GRUB will be installed into the MBR of both /dev/sda and /dev/sdb.

The output of grub-install looks like this:

[EMAIL PROTECTED]:~# grub-install /dev/md0 
Searching for GRUB installation directory ... found: /boot/grub
Installing GRUB to /dev/sda
Installing GRUB to /dev/sdb
Installation finished. No error reported.
This is the contents of the device map /boot/grub/device.map.
Check if this is correct or not. If any of the lines is incorrect,
fix it and re-run the script `grub-install'.

(hd0)   /dev/sda

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-07 Thread Colin Watson
I don't think this is a viable long-term solution, because grub-install
after installation won't do the same thing. Thus the task on grub should
definitely stay open. However, it may help in the short term.

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-07 Thread Launchpad Bug Tracker
This bug was fixed in the package grub-installer - 1.32ubuntu2

---
grub-installer (1.32ubuntu2) intrepid; urgency=low

  [ Colin Watson ]
  * Add another guard against calling 'udevadm info' with an empty device
name (LP: #30772).

  [ Dustin Kirkland ]
  * grub-installer: add support for writing an MBR on each disk in an
mdadm-managed RAID providing /boot (LP: #33649)

 -- Colin Watson <[EMAIL PROTECTED]>   Thu, 07 Aug 2008 19:02:15 +0100

** Changed in: grub-installer (Ubuntu)
   Status: New => Fix Released

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-07 Thread Dustin Kirkland
Also, added to a bzr branch:
 * https://code.launchpad.net/~kirkland/grub-installer/33649

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-06 Thread Dustin Kirkland
** Also affects: grub (Ubuntu)
   Importance: Undecided
   Status: New

** Also affects: grub-installer (Ubuntu)
   Importance: Undecided
   Status: New

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-06 Thread Dustin Kirkland
I'm attaching a patch to the grub-installer package which adds support
for iteratively installing GRUB to each disk in an mdadm-managed
software RAID providing /boot.

I'm not done testing it yet, but I'm posting it here in case anyone has
any productive comments on the patch.

:-Dustin

** Attachment added: "grub.33649.debdiff"
   http://launchpadlibrarian.net/16603840/grub.33649.debdiff

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-01 Thread tricky1
@Dustin

> My intention is to fix this multi-faceted bug in an incremental and
> solvable manner.
My suggestions ARE along these lines :D

> That the bug has been around for 2.5 years is a testament to the fact
> that it is difficult to solve. Breaking it down into manageable bits
> is a tried and true software development process.
No, not only me had found workarounds for booting in urgent cases ...
That in Ubuntu it is still present has other roots...
Did anybody object to your tried and true development process?
You as a bright expert might deny like some of your very bright collegues 
that sometimes non experts can give hints for better ui design.

>> a) I am not fluent enough in bashing, so I can give only some hints easily
>> realiziable for willing experts: 

> I understand. My asking for a patch is a polite way of saying that
> while you or others might be willing/interested in implementing the
> functionality, I do not think it to be a productive use of my time.

Well, after having spent some time to find out how the patch you requested
could be realized, II won't publicly tell you what I think of your so called 
politeness.

> However, I'm not entirely closed off to the idea (should someone else
> do a good job with it), and I'll gladly review the code and offer
> constructive criticism.

After all, I won't give any further comments on your attitude.

PS: And your explanation has shown that I was not too wrong when assuming
a few messages above that users will have to fiddle around with grub... :(

This was my very last comment on the subject. Byebye ...

tricky

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Re: [Bug 33649] Re: root raid installs have bad grub config

2008-08-01 Thread Dustin Kirkland
On Fri, Aug 1, 2008 at 9:25 AM, tricky1 <[EMAIL PROTECTED]> wrote:
> @Dustin:
> Do I err with my impression that your intension is to get some quick fix

My intention is to fix this multi-faceted bug in an incremental and
solvable manner.

That the bug has been around for 2.5 years is a testament to the fact
that it is difficult to solve.  Breaking it down into manageable bits
is a tried and true software development process.

> a) I am not fluent enough in bashing, so I can give only some hints easily
> realiziable for willing experts:

I understand.  My asking for a patch is a polite way of saying that
while you or others might be willing/interested in implementing the
functionality, I do not think it to be a productive use of my time.
However, I'm not entirely closed off to the idea (should someone else
do a good job with it), and I'll gladly review the code and offer
constructive criticism.

> (btw smartctl adds 176K to 8M of initrd and imho is worth the effort).
>
> Do for all devices used in array:

Firstly, this is off-topic for the current bug against grub.  If you
really desire SMART disk scanning in the initramfs, please open a new
wishlist bug against initramfs-tools and capture these requests there.

smartctl cannot necessarily be used on all devices in an array.  It
does not work on all drives.  It will not work on USB connected media,
flash disks, or other increasingly popular alternatives to traditional
IDE/SCSI disks.  And in my experience, it has yielded both false
positives, and false negatives.

I think that SMART is more trouble than it's worth *in the initramfs*.
 Please use SMART until your heart is content in runtime.  Run it in a
cronjob, using smartctl+mdadm and email yourself the results, if you
want.

> b) Did I misunderstand when assuming that kernel boot paramters must be
> set beforhand (when grub is running) or how will the user interface
> look.

Kernel boot parameters can be statically set in the grub menu.lst, or
dynamically in the grub boot menu.  The boot process needs to be as
automatic as possible.  Asking questions detracts from the ability to
perform unattended boots.

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-08-01 Thread tricky1
@Dustin:
Do I err with my impression that your intension is to get some quick fix while 
my concern is to make Ubuntu as simple and reliable as possible? It is now the 
moment to make sure that the user interface while booting mirrored raids is 
understandable and maneagable not only for experts but also for ordinary people 
like me ;-)

a) I am not fluent enough in bashing, so I can give only some hints easily 
realiziable for willing experts:
(btw smartctl adds 176K to 8M of initrd and imho is worth the effort).

Do for all devices used in array:

smartctl --smart=on --offlineauto=on --saveauto=on -H /dev/sda
if [ $? != 0 ] ; then
  echo "smartctl error $? in /dev/sda"
...

b) Did I misunderstand when assuming that kernel boot paramters must be
set beforhand (when grub is running) or how will the user interface
look.

Sorry but I'm missing better english knowledge to make you understand
how I imagine the user interface in case of problems :-(

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Re: [Bug 33649] Re: root raid installs have bad grub config

2008-07-31 Thread Dustin Kirkland
On Thu, Jul 31, 2008 at 7:58 AM, tricky1 <[EMAIL PROTECTED]> wrote:
> a) Even if smart status is not perfect it is a good idea to warn user
> during boot in case of errors detected.

I still don't see this as practical, as it would necessitate moving
smartctl (and dependent .so's) into the initramfs.  But if you have a
working patch, I'll gladly look at it.

> b) What I tried to suggest is not a visible timer (good idea but not
> urgent), but the possibility that during _installation_ one can specify
> if automatic degraded booting will ever occur. (default timer=0 -> no
> automatism)

This is handled by the patches for Bug #120375.  With that code, you
are able to provide on the kernel boot parameters one of:
 * bootdegraded=true
 * bootdegraded=false

The default is 'false'.  The timer is fixed at 30 seconds, which will
be spent in 0.1 second intervals, looking for new devices that might
have shown up, or a clean RAID device.

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-07-31 Thread tricky1
@Dustin:

a) Even if smart status is not perfect it is a good idea to warn user
during boot in case of errors detected.

b) What I tried to suggest is not a visible timer (good idea but not
urgent), but the possibility that during _installation_ one can specify
if automatic degraded booting will ever occur. (default timer=0 -> no
automatism)

and if automatism is disabled or the user intervening during the timers
run, she can make a well informed decison what arrays shall be run in
degraded mode.

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Re: [Bug 33649] Re: root raid installs have bad grub config

2008-07-30 Thread Dustin Kirkland
On Wed, Jul 30, 2008 at 9:10 AM, tricky1 <[EMAIL PROTECTED]> wrote:
> - When will your work be integrated into the daily iso?

Ideally, sometime before FeatureFreeze, currently set for 28 Aug 2008.
 * https://wiki.ubuntu.com/IntrepidReleaseSchedule

> - Did you read my additional comments added at the bottom of the wiki
page?

I did.

> I am convinced that a separate entry in grubs menu list is a short
> sighted approach, please comment!

Responses to your wiki page post...

I am not suggesting separate entries in a grub menu---I do not
understand where you got that idea.  I'm happy to review your patches,
if you have code for an alternative approach.

The design is not yet final.  The design I set forth emulates what I
did for yaboot, the PowerPC bootloader, several years ago.  There have
been no complaints of the yaboot functionality, which is in use by a
number of commercial, enterprise PPC users.

To your points

a) SMART output is practically worthless, IMHO.  I have used it
extensively, and it has completely failed to report a negative status
of known, bad drives, and it has marked drives as 'bad' that went on
to operate flawlessly for years.  If users want to use smartmontools,
they can do that in userspace, but I do not recommend integrating such
an imprecise technology into the init/boot processes.

b) We already have a timer, set to 30 seconds, which waits for the
device containing the root filesystem to show up.  Perhaps you want to
see a graphic representation of that timer.  If so, that is a
reasonable wishlist item.  Feel free to open a new bug against
initramfs-tools for that one.  Patches welcome.

c) This is how initramfs-tools works already.

d) This is how my patches to Bug #120375 work, with the exception that
they they support only a single degraded RAID device for $ROOT.  You
can open a new bug, with complete instructions on how to reproduce, a
more complex scenario involving multiple degraded RAID devices
required for booting.

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-07-30 Thread tricky1
Thx, good news from Dustin. Questions:

- When will your work be integrated into the daily iso?
- Did you read my additional comments added at the bottom of the wiki page?

I am convinced that a separate entry in grubs menu list is a short
sighted approach, please comment!

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[Bug 33649] Re: root raid installs have bad grub config

2008-07-28 Thread Dustin Kirkland
I have linked this bug to the following Blueprint for Intrepid:
 * https://blueprints.launchpad.net/ubuntu/+spec/boot-degraded-raid

And covered it briefly in the specification:
 * 
https://wiki.ubuntu.com/BootDegradedRaid#head-bad7ecb75ab9cd9fd207658b7aecf983f919e33a

I am working on this for Intrepid.

:-Dustin

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[Bug 33649] Re: root raid installs have bad grub config

2008-07-27 Thread tricky1
It is very disappointing to see that all alfas of intrepid still have
that problem. I wonder how this deeply rooted bug shall be corrected in
the few weeks remaining if currently nothing seems to be done in that
direction?

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[Bug 33649] Re: root raid installs have bad grub config

2008-06-30 Thread tricky1
Please wake up ;-)

** Changed in: debian-installer (Ubuntu)
 Assignee: (unassigned) => Ubuntu Installer Team (ubuntu-installer)

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root raid installs have bad grub config
https://bugs.launchpad.net/bugs/33649
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[Bug 33649] Re: root raid installs have bad grub config

2008-06-30 Thread tricky1
The installer on alternate cd looks broken as soon as one intends to use
_any_ kind of raid.

Same problem on server edition. Who ever would want to install a real
world server without mirroring?

I wonder why the responsible manager seems not to recognize importance
of this bug??

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root raid installs have bad grub config
https://bugs.launchpad.net/bugs/33649
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Server Team, which is a direct subscriber.

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