Re: /usrmove and path ordering

2012-02-16 Thread Jim Meyering
Reindl Harald wrote:
 Am 15.02.2012 13:43, schrieb Martin Langhoff:
 On Feb 15, 2012 6:16 AM, Reindl Harald h.rei...@thelounge.net
 mailto:h.rei...@thelounge.net wrote:
 there is no single reason for a feature like /usrmove which
 in fact nobody NEEDS at all and definitly not now to press
 it into the next release with pressure

 You are wrong. The /usr move has a very clear impact in being able
 to snapshot your OS install partition. Add
 btrfs, yum hooks and the already-implemented stateless
 configuration and you have a really major feature: a fully
 upgrade/test/rollback setup for Fedora.

 only one out of a million installations have /usr seperated
 from / and the default is NOT do this - so no there is no
 impact on any normal setup

Prior to F17, I've always put /usr on a partition separate from /.

$ df -hT / /usr
Filesystem Type  Size  Used Avail Use% Mounted on
/dev/sda4  ext4   11G  7.3G  3.2G  70% /
/dev/sda6  ext4   10G  7.3G  2.3G  77% /usr

I know I'm special ;-), but *that* special?  I doubt it.
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Re: /usrmove and path ordering

2012-02-16 Thread Simo Sorce
On Thu, 2012-02-16 at 13:22 +0100, Jim Meyering wrote:
 Reindl Harald wrote:
  Am 15.02.2012 13:43, schrieb Martin Langhoff:
  On Feb 15, 2012 6:16 AM, Reindl Harald h.rei...@thelounge.net
  mailto:h.rei...@thelounge.net wrote:
  there is no single reason for a feature like /usrmove which
  in fact nobody NEEDS at all and definitly not now to press
  it into the next release with pressure
 
  You are wrong. The /usr move has a very clear impact in being able
  to snapshot your OS install partition. Add
  btrfs, yum hooks and the already-implemented stateless
  configuration and you have a really major feature: a fully
  upgrade/test/rollback setup for Fedora.
 
  only one out of a million installations have /usr seperated
  from / and the default is NOT do this - so no there is no
  impact on any normal setup
 
 Prior to F17, I've always put /usr on a partition separate from /.
 
 $ df -hT / /usr
 Filesystem Type  Size  Used Avail Use% Mounted on
 /dev/sda4  ext4   11G  7.3G  3.2G  70% /
 /dev/sda6  ext4   10G  7.3G  2.3G  77% /usr
 
 I know I'm special ;-), but *that* special?  I doubt it.

I guess it is time to change habits, what's the point of a separate /usr
these days ?

Simo.

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Re: /usrmove and path ordering

2012-02-16 Thread Jim Meyering
Simo Sorce wrote:
 On Thu, 2012-02-16 at 13:22 +0100, Jim Meyering wrote:
...
 Prior to F17, I've always put /usr on a partition separate from /.

 $ df -hT / /usr
 Filesystem Type  Size  Used Avail Use% Mounted on
 /dev/sda4  ext4   11G  7.3G  3.2G  70% /
 /dev/sda6  ext4   10G  7.3G  2.3G  77% /usr

 I know I'm special ;-), but *that* special?  I doubt it.

 I guess it is time to change habits, what's the point of a separate /usr
 these days ?

I like to keep / very small, separate and mostly read-only, so that
when something goes wrong with the disk it's less likely to affect
the root partition, so I'm all for the implicit writable/read-only
segregation this implies.

/usrmove is a clear win.
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Re: /usrmove and path ordering

2012-02-16 Thread Jason L Tibbitts III
 SS == Simo Sorce s...@redhat.com writes:

SS I guess it is time to change habits, what's the point of a separate
SS /usr these days ?

I also always configured a separate /usr until I decided to obey
systemd's complaints about it being broken (though of course I never had
any issue at all with it).  For me it was simply keeping / small and
being able to back it up easily without backing up all of the stuff in
/usr.

 - J
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Re: /usrmove and path ordering

2012-02-15 Thread drago01
On Wed, Feb 15, 2012 at 1:26 AM, Kevin Kofler kevin.kof...@chello.at wrote:
 Lennart Poettering wrote:
 Because dropping these dirs from the search paths is merely an
 optimization, not a requirement.

 You call it an optimization, I call it fixing a pessimization (performance
 regression).

 And as the original message in the thread points out, the regression
 actually affects more than just performance, it also causes genuine bugs
 (with automatic prefix detection in applications).

So? Should we drop all features that aren't bug free after feature freeze?
You complain as if we are going to release GA tomorrow.
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Re: /usrmove and path ordering

2012-02-15 Thread Ralf Corsepius

On 02/15/2012 10:37 AM, drago01 wrote:

On Wed, Feb 15, 2012 at 1:26 AM, Kevin Koflerkevin.kof...@chello.at  wrote:

Lennart Poettering wrote:

Because dropping these dirs from the search paths is merely an
optimization, not a requirement.


You call it an optimization, I call it fixing a pessimization (performance
regression).

And as the original message in the thread points out, the regression
actually affects more than just performance, it also causes genuine bugs
(with automatic prefix detection in applications).


So? Should we drop all features that aren't bug free after feature freeze?

Yes. We've forked f17 and you guys are still chasing elementary bugs.

What do you expect Fedora users to think of this? It communicates a nice 
impression of the quality of your works.


Better stop this non-sense now!
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Re: /usrmove and path ordering

2012-02-15 Thread drago01
On Wed, Feb 15, 2012 at 11:18 AM, Ralf Corsepius rc040...@freenet.de wrote:
 On 02/15/2012 10:37 AM, drago01 wrote:

 On Wed, Feb 15, 2012 at 1:26 AM, Kevin Koflerkevin.kof...@chello.at
  wrote:

 Lennart Poettering wrote:

 Because dropping these dirs from the search paths is merely an
 optimization, not a requirement.


 You call it an optimization, I call it fixing a pessimization
 (performance
 regression).

 And as the original message in the thread points out, the regression
 actually affects more than just performance, it also causes genuine bugs
 (with automatic prefix detection in applications).


 So? Should we drop all features that aren't bug free after feature freeze?

 Yes. We've forked f17 and you guys are still chasing elementary bugs.

elementary bugs ? You got to be either kidding or trolling.

 What do you expect Fedora users to think of this?

We are at pre alpha / alpha ... users should not have to care about
that right now.

It communicates a nice
 impression of the quality of your works.

I am not involved in this so it is not my works ...

 Better stop this non-sense now!

The only nonsense I see here is people ranting for the sake of ranting.
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Re: /usrmove and path ordering

2012-02-15 Thread Reindl Harald


Am 15.02.2012 11:25, schrieb drago01:
 So? Should we drop all features that aren't bug free after feature freeze?

 Yes. We've forked f17 and you guys are still chasing elementary bugs.
 
 elementary bugs ? You got to be either kidding or trolling.
 
 What do you expect Fedora users to think of this?
 
 We are at pre alpha / alpha ... users should not have to care about
 that right now.
 
 It communicates a nice
 impression of the quality of your works.
 
 I am not involved in this so it is not my works ...
 
 Better stop this non-sense now!
 
 The only nonsense I see here is people ranting for the sake of ranting.

people are ranting because the experience how buggy are
features in the GA-releases if they are in such a not
conesquently thought state at alpha

the last releases it was always fact that they was not ready until
GA and if they can't be fixed then common bugs are listed in
the release notes

the problem is here that first the work/change/feature is started as
happend often in the past and in the middle of the work more
and more people coming with things nobody cared in tghe planning
phase what let many of us feel like there is nothing planned, there
were people starting and forcing without any thoughts and the hope
that all will get sorted until GA



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Re: /usrmove and path ordering

2012-02-15 Thread Harald Hoyer
Am 15.02.2012 11:20 schrieb Ralf Corsepius rc040...@freenet.de:
 Yes. We've forked f17 and you guys are still chasing elementary bugs.

 What do you expect Fedora users to think of this? It communicates a nice
impression of the quality of your works.

 Better stop this non-sense now

rofl... nothing else is broken and my PATH is non-optimal, stop the
usrmove, because I don't want it.

this is so ridicoulus...
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Re: /usrmove and path ordering

2012-02-15 Thread FRank Murphy

On 15/02/12 10:18, Ralf Corsepius wrote:


So? Should we drop all features that aren't bug free after feature
freeze?

Yes. We've forked f17 and you guys are still chasing elementary bugs.

What do you expect Fedora users to think of this? It communicates a nice
impression of the quality of your works.

Better stop this non-sense now!


I'm a user, don't have a problem.

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Re: /usrmove and path ordering

2012-02-15 Thread Reindl Harald


Am 15.02.2012 12:05, schrieb Harald Hoyer:
 Am 15.02.2012 11:20 schrieb Ralf Corsepius rc040...@freenet.de 
 mailto:rc040...@freenet.de:
 Yes. We've forked f17 and you guys are still chasing elementary bugs.

 What do you expect Fedora users to think of this? It communicates a nice 
 impression of the quality of your works.

 Better stop this non-sense now
 
 rofl... nothing else is broken and my PATH is non-optimal, stop the usrmove, 
 because I don't want it.

the nothing else we will see later

fact is that the feauture is included and now people are
coming did we think about this and this and this...

there is no single reason for a feature like /usrmove which
in fact nobody NEEDS at all and definitly not now to press
it into the next release with pressure

this feels like you guys has no other things to do and sitting
there hmm let us search for solutions press into a release and
let us search for constructed problems the solution may solve
to have any valid reason to do it now



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Re: /usrmove and path ordering

2012-02-15 Thread Tomasz Torcz
On Wed, Feb 15, 2012 at 12:16:07PM +0100, Reindl Harald wrote:
 
 there is no single reason for a feature like /usrmove which
 in fact nobody NEEDS at all and definitly not now to press
 it into the next release with pressure

  Well, I need usrmove, because I have a strong need for clean system.
Here, your point is invalid.

  Harald, you are generating copius amounts of stop-energy.  You really
should participate in Fedora process as it designed - during feature
proposals, discussions, implementation.  Right now you are ranting post factum.
The amount of time you waste on this mail list is huge, and it is a sad
waste.  It would be better spent on filling bugs on real issues.
  Because bugs, you know, get fixed. I even remember one bug that you have
filled about some deamon not shipping a systemd unit. I saw this bug,
I've created and attached unit file, it got shipped by maintainer. Case closed.
This is the best way of participation.

  Your baseless, repetitive rants finally made me blacklist you. It's very
sad for me, as I believe in open participation and meritocracy.

  Good bye,

-- 
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xmpp: zdzich...@chrome.pl  Ziomale na życie mają tu patenty specjalne.



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Re: /usrmove and path ordering

2012-02-15 Thread Reindl Harald


Am 15.02.2012 12:24, schrieb Tomasz Torcz:
 On Wed, Feb 15, 2012 at 12:16:07PM +0100, Reindl Harald wrote:

 there is no single reason for a feature like /usrmove which
 in fact nobody NEEDS at all and definitly not now to press
 it into the next release with pressure
 
 Well, I need usrmove, because I have a strong need for clean system.
 Here, your point is invalid.

you mean all existing linux-installations are unclean?

you need a clean system but accept that half of the distribution
is a mix of systemd/sysv/lsb - you would get a clean system if
the work of one feature would be COMPLETLY done before the next
is started, but seems that most people have no intention nor
the make nor any idea what is a clean system



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Re: /usrmove and path ordering

2012-02-15 Thread Martin Langhoff
On Feb 15, 2012 6:16 AM, Reindl Harald h.rei...@thelounge.net wrote:
 there is no single reason for a feature like /usrmove which
 in fact nobody NEEDS at all and definitly not now to press
 it into the next release with pressure

You are wrong. The /usr move has a very clear impact in being able to
snapshot your OS install partition. Add btrfs, yum hooks and the
already-implemented stateless configuration and you have a really major
feature: a fully upgrade/test/rollback setup for Fedora.

For OLPC for example, this could be a major win, hence my interest. I
definitely want it for my laptop. I'm sure many running rawhide will want
it :-) -- upgrade/test/file bugs if it breaks/rollback if it's real bad.

cheers,

m
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Re: /usrmove and path ordering

2012-02-15 Thread Reindl Harald


Am 15.02.2012 13:43, schrieb Martin Langhoff:
 On Feb 15, 2012 6:16 AM, Reindl Harald h.rei...@thelounge.net 
 mailto:h.rei...@thelounge.net wrote:
 there is no single reason for a feature like /usrmove which
 in fact nobody NEEDS at all and definitly not now to press
 it into the next release with pressure
 
 You are wrong. The /usr move has a very clear impact in being able to 
 snapshot your OS install partition. Add
 btrfs, yum hooks and the already-implemented stateless configuration and 
 you have a really major feature: a fully
 upgrade/test/rollback setup for Fedora.

only one out of a million installations have /usr seperated
from / and the default is NOT do this - so no there is no
impact on any normal setup



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Re: /usrmove and path ordering

2012-02-15 Thread Miloslav Trmač
On Wed, Feb 15, 2012 at 1:43 PM, Martin Langhoff
martin.langh...@gmail.com wrote:
 You are wrong. The /usr move has a very clear impact in being able to
 snapshot your OS install partition. Add btrfs, yum hooks and the
 already-implemented stateless configuration and you have a really major
 feature: a fully upgrade/test/rollback setup for Fedora.

I haven't seen this work and I don't think such snaphots can be relied
upon: /boot, /etc and /var are affected by installs as well
(especially in the cases where you would want to roll back); I don't
think anybody wants exactly the separation provided by the crude /usr
vs. rest that is provided by the /usr move.

And snapshots that can not be relied upon may be even worse than no
snapshots if they motivate users to skip creating proper backups.
Mirek
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Re: /usrmove and path ordering

2012-02-15 Thread Reindl Harald


Am 15.02.2012 14:25, schrieb Miloslav Trmač:
 On Wed, Feb 15, 2012 at 1:43 PM, Martin Langhoff
 martin.langh...@gmail.com wrote:
 You are wrong. The /usr move has a very clear impact in being able to
 snapshot your OS install partition. Add btrfs, yum hooks and the
 already-implemented stateless configuration and you have a really major
 feature: a fully upgrade/test/rollback setup for Fedora.
 
 I haven't seen this work and I don't think such snaphots can be relied
 upon: /boot, /etc and /var are affected by installs as well
 (especially in the cases where you would want to roll back); I don't
 think anybody wants exactly the separation provided by the crude /usr
 vs. rest that is provided by the /usr move.

this is a additional reason why the /usrmove is completly
useless because it suggests users they are save using any
FS-snapshot

have many fun after a big upgrade to revert the snapshot
if you really have /usr on a seperated FS and your
/etc and /var/lib/rpm will stay in the state after the
upgrade and your FS is bombed back

so for users having a default setup there is no difference
because / as /etc and /usr is the same FS and for ones
have seperated /usr it does not bring any benefit in real life

with other words: the whole work which is done here is useless
and low brained with constrcuted arguments not working in
the real life and they were only coonstructed to push this
feature because some developers are bored and fear this
maybe happen also to users if they do not change permanently
things which are working fine

yes i know, now i get a reply about politness - but face the truth!



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Re: /usrmove and path ordering

2012-02-15 Thread Martin Langhoff
On Wed, Feb 15, 2012 at 8:30 AM, Reindl Harald h.rei...@thelounge.net wrote:
 Am 15.02.2012 14:25, schrieb Miloslav Trmač:
 I haven't seen this work and I don't think such snaphots can be relied
 upon: /boot, /etc and /var are affected by installs as well

Miroslav -- you haven't seen this work because the tasks are not all
yet in. But the stateless feature handles a lot of it already.

 this is a additional reason why the /usrmove is completly

Harald, it is one step in a process. I am very happy and thankful that
Fedora is working in this direction.

Now, it's time for me to step aside from this thread.


m
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 - ask interesting questions
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Re: /usrmove and path ordering

2012-02-15 Thread Kevin Kofler
Martin Langhoff wrote:
 Miroslav -- you haven't seen this work because the tasks are not all
 yet in. But the stateless feature handles a lot of it already.

If you revert /usr to a snapshot without touching the rpmdb (in 
/var/lib/rpm), your system will be in a very inconsistent state.

Kevin Kofler

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/usrmove and path ordering

2012-02-14 Thread Michel Alexandre Salim
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Dear developers,

Now that the /usrmove changes have landed in the F-17 branch, should
the ordering of directories in PATH be changed? /usr/bin should appear
before /bin and /usr/sbin before /sbin.

Right now $(which a-binary) would report that all /usr/... binaries
are located in /bin and /sbin instead; while it is mostly just
cosmetic, some programs (e.g. pure-gen) use the heuristic of computing
their default installation prefix based on the location of another
binary, and get confused if that prefix is empty.

Is this a reasonable change? I'll file a bug report if that's the case.

Thanks,

- -- 
Michel Alexandre Salim
Fedora Project Contributor: http://fedoraproject.org/

Email:  sali...@fedoraproject.org  | GPG key ID: A36A937A
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Re: /usrmove and path ordering

2012-02-14 Thread Ondrej Vasik
On Tue, 2012-02-14 at 17:08 +0100, Michel Alexandre Salim wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 Dear developers,
 
 Now that the /usrmove changes have landed in the F-17 branch, should
 the ordering of directories in PATH be changed? /usr/bin should appear
 before /bin and /usr/sbin before /sbin.
 
 Right now $(which a-binary) would report that all /usr/... binaries
 are located in /bin and /sbin instead; while it is mostly just
 cosmetic, some programs (e.g. pure-gen) use the heuristic of computing
 their default installation prefix based on the location of another
 binary, and get confused if that prefix is empty.
 
 Is this a reasonable change? I'll file a bug report if that's the case.

/bin and /sbin paths were already removed in latest setup package - as
you no longer need them... so no need for bugzilla and report...

Ondrej Vasik

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Re: /usrmove and path ordering

2012-02-14 Thread Michel Alexandre Salim
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On 02/14/2012 05:11 PM, Ondrej Vasik wrote:
 On Tue, 2012-02-14 at 17:08 +0100, Michel Alexandre Salim wrote:
 -BEGIN PGP SIGNED MESSAGE- Hash: SHA1
 
 Dear developers,
 
 Now that the /usrmove changes have landed in the F-17 branch,
 should the ordering of directories in PATH be changed? /usr/bin
 should appear before /bin and /usr/sbin before /sbin.
 
 Right now $(which a-binary) would report that all /usr/...
 binaries are located in /bin and /sbin instead; while it is
 mostly just cosmetic, some programs (e.g. pure-gen) use the
 heuristic of computing their default installation prefix based on
 the location of another binary, and get confused if that prefix
 is empty.
 
 Is this a reasonable change? I'll file a bug report if that's the
 case.
 
 /bin and /sbin paths were already removed in latest setup package -
 as you no longer need them... so no need for bugzilla and
 report...

Ah, great. They are still used in Koji (even for Rawhide) but it's
probably just a matter of time then.


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Re: /usrmove and path ordering

2012-02-14 Thread Tomas Mraz
On Tue, 2012-02-14 at 17:11 +0100, Ondrej Vasik wrote: 
 On Tue, 2012-02-14 at 17:08 +0100, Michel Alexandre Salim wrote:
  -BEGIN PGP SIGNED MESSAGE-
  Hash: SHA1
  
  Dear developers,
  
  Now that the /usrmove changes have landed in the F-17 branch, should
  the ordering of directories in PATH be changed? /usr/bin should appear
  before /bin and /usr/sbin before /sbin.
  
  Right now $(which a-binary) would report that all /usr/... binaries
  are located in /bin and /sbin instead; while it is mostly just
  cosmetic, some programs (e.g. pure-gen) use the heuristic of computing
  their default installation prefix based on the location of another
  binary, and get confused if that prefix is empty.
  
  Is this a reasonable change? I'll file a bug report if that's the case.
 
 /bin and /sbin paths were already removed in latest setup package - as
 you no longer need them... so no need for bugzilla and report...

I'm not sure, but I think bash has hardcoded PATH for /bin and /usr/bin
as well.
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Re: /usrmove and path ordering

2012-02-14 Thread Adam Williamson
On Tue, 2012-02-14 at 17:33 +0100, Tomas Mraz wrote:
 On Tue, 2012-02-14 at 17:11 +0100, Ondrej Vasik wrote: 
  On Tue, 2012-02-14 at 17:08 +0100, Michel Alexandre Salim wrote:
   -BEGIN PGP SIGNED MESSAGE-
   Hash: SHA1
   
   Dear developers,
   
   Now that the /usrmove changes have landed in the F-17 branch, should
   the ordering of directories in PATH be changed? /usr/bin should appear
   before /bin and /usr/sbin before /sbin.
   
   Right now $(which a-binary) would report that all /usr/... binaries
   are located in /bin and /sbin instead; while it is mostly just
   cosmetic, some programs (e.g. pure-gen) use the heuristic of computing
   their default installation prefix based on the location of another
   binary, and get confused if that prefix is empty.
   
   Is this a reasonable change? I'll file a bug report if that's the case.
  
  /bin and /sbin paths were already removed in latest setup package - as
  you no longer need them... so no need for bugzilla and report...
 
 I'm not sure, but I think bash has hardcoded PATH for /bin and /usr/bin
 as well.

Also, has the default linker path (in glibc, I guess?) been adjusted?
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Re: /usrmove and path ordering

2012-02-14 Thread Ondrej Vasik
- Original Message -
 On Tue, 2012-02-14 at 17:11 +0100, Ondrej Vasik wrote:
  On Tue, 2012-02-14 at 17:08 +0100, Michel Alexandre Salim wrote:
   -BEGIN PGP SIGNED MESSAGE-
   Hash: SHA1
   
   Dear developers,
   
   Now that the /usrmove changes have landed in the F-17 branch,
   should
   the ordering of directories in PATH be changed? /usr/bin should
   appear
   before /bin and /usr/sbin before /sbin.
   
   Right now $(which a-binary) would report that all /usr/...
   binaries
   are located in /bin and /sbin instead; while it is mostly just
   cosmetic, some programs (e.g. pure-gen) use the heuristic of
   computing
   their default installation prefix based on the location of
   another
   binary, and get confused if that prefix is empty.
   
   Is this a reasonable change? I'll file a bug report if that's the
   case.
  
  /bin and /sbin paths were already removed in latest setup package -
  as
  you no longer need them... so no need for bugzilla and report...
 
 I'm not sure, but I think bash has hardcoded PATH for /bin and
 /usr/bin
 as well.

You are right, setup update fixed only /sbin locations... /bin has to be done
on glibc and shells side. Sorry for confusion...

Greetings,
 Ondrej Vasik
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Re: /usrmove and path ordering

2012-02-14 Thread Kevin Kofler
Ondrej Vasik wrote:
 You are right, setup update fixed only /sbin locations... /bin has to be
 done on glibc and shells side. Sorry for confusion...

WHY was UsrMove allowed to be merged in such broken and incomplete state?

Kevin Kofler

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Re: /usrmove and path ordering

2012-02-14 Thread Lennart Poettering
On Tue, 14.02.12 23:08, Kevin Kofler (kevin.kof...@chello.at) wrote:

 Ondrej Vasik wrote:
  You are right, setup update fixed only /sbin locations... /bin has to be
  done on glibc and shells side. Sorry for confusion...
 
 WHY was UsrMove allowed to be merged in such broken and incomplete state?

Because dropping these dirs from the search paths is merely an
optimization, not a requirement.

Lennart

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Re: /usrmove and path ordering

2012-02-14 Thread Kevin Kofler
Lennart Poettering wrote:
 Because dropping these dirs from the search paths is merely an
 optimization, not a requirement.

You call it an optimization, I call it fixing a pessimization (performance 
regression).

And as the original message in the thread points out, the regression 
actually affects more than just performance, it also causes genuine bugs 
(with automatic prefix detection in applications).

Kevin Kofler

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