* difference between /usr/lib/modules and /lib/modules
@ 2020-03-20 10:24 Fabien R
2020-03-20 10:56 ` Bernd Petrovitsch
0 siblings, 1 reply; 6+ messages in thread
From: Fabien R @ 2020-03-20 10:24 UTC (permalink / raw)
To: kernelnewbies
Hello,
Being used to cross-compile my kernel on a faster machine, I noticed the existence of both directories
after installing it with update-grub.
Since 'du' showed that they have the same size, it's a waste of space.
Is it possible to use only one of them ?
Is it inherent to grub ?
--
Fabien
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: difference between /usr/lib/modules and /lib/modules
2020-03-20 10:24 difference between /usr/lib/modules and /lib/modules Fabien R
@ 2020-03-20 10:56 ` Bernd Petrovitsch
2020-03-20 11:11 ` Valentin Vidić
2020-03-20 11:14 ` Fabien R
0 siblings, 2 replies; 6+ messages in thread
From: Bernd Petrovitsch @ 2020-03-20 10:56 UTC (permalink / raw)
To: Fabien R, kernelnewbies
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Hi!
On 20/03/2020 10:24, Fabien R wrote:
[...]
> Being used to cross-compile my kernel on a faster machine, I noticed the existence of both directories
> after installing it with update-grub.
> Since 'du' showed that they have the same size, it's a waste of space.
> Is it possible to use only one of them ?
/usr/lib/modules doesn't exist on Ubuntu (and TTBOMK it
doesn't exit in the Fedora/RedHat-world - can't check right now).
Are you sure they are actually different (and don't have e.g.
the same inode number)?
MfG,
Bernd
--
"I dislike type abstraction if it has no real reason. And saving
on typing is not a good reason - if your typing speed is the main
issue when you're coding, you're doing something seriously wrong."
- Linus Torvalds
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: difference between /usr/lib/modules and /lib/modules
2020-03-20 10:56 ` Bernd Petrovitsch
@ 2020-03-20 11:11 ` Valentin Vidić
2020-03-20 11:23 ` Fabien R
2020-03-22 3:36 ` Valdis Klētnieks
2020-03-20 11:14 ` Fabien R
1 sibling, 2 replies; 6+ messages in thread
From: Valentin Vidić @ 2020-03-20 11:11 UTC (permalink / raw)
To: kernelnewbies
On Fri, Mar 20, 2020 at 10:56:15AM +0000, Bernd Petrovitsch wrote:
> Are you sure they are actually different (and don't have e.g.
> the same inode number)?
Looks like that to me (on Debian):
$ ls -lid /usr/lib/modules /lib/modules
9804 drwxr-xr-x 4 root root 4096 Feb 15 11:31 /lib/modules
9804 drwxr-xr-x 4 root root 4096 Feb 15 11:31 /usr/lib/modules
$ ls -lid /usr/lib /lib
29 lrwxrwxrwx 1 root root 7 Jul 27 2019 /lib -> usr/lib
30 drwxr-xr-x 79 root root 4096 Feb 15 11:27 /usr/lib
--
Valentin
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* Re: difference between /usr/lib/modules and /lib/modules
2020-03-20 10:56 ` Bernd Petrovitsch
2020-03-20 11:11 ` Valentin Vidić
@ 2020-03-20 11:14 ` Fabien R
1 sibling, 0 replies; 6+ messages in thread
From: Fabien R @ 2020-03-20 11:14 UTC (permalink / raw)
To: kernelnewbies
On 20/03/2020 11:56, Bernd Petrovitsch wrote:
> /usr/lib/modules doesn't exist on Ubuntu (and TTBOMK it
> doesn't exit in the Fedora/RedHat-world - can't check right now).
>
I forgot to mention that I was on debian/stable.
> Are you sure they are actually different (and don't have e.g.
> the same inode number)?
>
Yes, they are. I would have expected one be a link to the other.
--
Fabien
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: difference between /usr/lib/modules and /lib/modules
2020-03-20 11:11 ` Valentin Vidić
@ 2020-03-20 11:23 ` Fabien R
2020-03-22 3:36 ` Valdis Klētnieks
1 sibling, 0 replies; 6+ messages in thread
From: Fabien R @ 2020-03-20 11:23 UTC (permalink / raw)
To: kernelnewbies
On 20/03/2020 12:11, Valentin Vidić wrote:
> $ ls -lid /usr/lib /lib
> 29 lrwxrwxrwx 1 root root 7 Jul 27 2019 /lib -> usr/lib
> 30 drwxr-xr-x 79 root root 4096 Feb 15 11:27 /usr/lib
Ok. It seems that I have to correct my setup.
Thanks for the info.
--
Fabien
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: difference between /usr/lib/modules and /lib/modules
2020-03-20 11:11 ` Valentin Vidić
2020-03-20 11:23 ` Fabien R
@ 2020-03-22 3:36 ` Valdis Klētnieks
1 sibling, 0 replies; 6+ messages in thread
From: Valdis Klētnieks @ 2020-03-22 3:36 UTC (permalink / raw)
Cc: kernelnewbies
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On Fri, 20 Mar 2020 12:11:52 +0100, Valentin VidiD <vvidic@valentin-vidic.from.hr> said:
> On Fri, Mar 20, 2020 at 10:56:15AM +0000, Bernd Petrovitsch wrote:
> > Are you sure they are actually different (and don't have e.g.
> > the same inode number)?
>
> Looks like that to me (on Debian):
>
> $ ls -lid /usr/lib/modules /lib/modules
> 9804 drwxr-xr-x 4 root root 4096 Feb 15 11:31 /lib/modules
> 9804 drwxr-xr-x 4 root root 4096 Feb 15 11:31 /usr/lib/modules
>
> $ ls -lid /usr/lib /lib
> 29 lrwxrwxrwx 1 root root 7 Jul 27 2019 /lib -> usr/lib
> 30 drwxr-xr-x 79 root root 4096 Feb 15 11:27 /usr/lib
So /lib is a symlink to /usr/lib. Fairly common on many distros.
(Try 'ls -Lid' instead - the -L option makes it show the target of a symlink
rather than the symlink itself...)
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end of thread, other threads:[~2020-03-22 3:44 UTC | newest]
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2020-03-20 10:24 difference between /usr/lib/modules and /lib/modules Fabien R
2020-03-20 10:56 ` Bernd Petrovitsch
2020-03-20 11:11 ` Valentin Vidić
2020-03-20 11:23 ` Fabien R
2020-03-22 3:36 ` Valdis Klētnieks
2020-03-20 11:14 ` Fabien R
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