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#1 2009-10-12 00:52:55

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

[Solved] Kernel 2.6.31 cannot find "modules.dep"

After upgrading to default x86_64 kernel 2.6.31-ARCH with no error messages, I get this during reboot:

"Could not load /lib/modules/2.6.30-ARCH/modules.dep"

Well, no wonder, as there is no 2.6.30-ARCH directory, only 2.6.31-ARCH. I have tried "mkinitcpio -p kernel26", but it didn't help any (naturally).

Is there an easy fix for this?

Last edited by whaler (2009-10-18 22:15:46)

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#2 2009-10-12 01:18:54

kjon
Member
From: Temuco, Chile
Registered: 2008-04-16
Posts: 398

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

sudo depmod -a

They say that if you play a Win cd backward you hear satanic messages. That's nothing! 'cause if you play it forwards, it installs windows.

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#3 2009-10-12 02:22:21

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

Thanks, but the system thinks it is still at 2.6.30-ARCH (uname -r), so that command cannot find directory 2.6.31-ARCH either. I tried specifying the new directory with depmod's -C option, but after a while depmod exited with a "FATAL".

Strange that the new kernel does not look for itself...

Could I uninstall and then reinstall the kernel within itself (no Internet connection)? If so, what would the commands be?

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#4 2009-10-12 03:57:00

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

OK, I used 'pacman -U' and rolled back to v2.6.30 and everything seems fine again.

BTW, I first tried to reinstall v2.6.31, but with the same unworkable result as before. I am using the 'radeonhd' video driver and notice it is not mentioned in the ATI wiki with regard to the new KMS functionality in the 31 kernel. Anyway - the latest kernel is broken on my system.
CPU - Intel Core i7
M/B - ASUS P6T Deluxe V2
Videocard - MSI Radeon HD4850 / RV770

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#5 2009-10-12 05:43:00

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,839

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

You need to reboot after updating the kernel.

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#6 2009-10-12 07:29:12

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

I always reboot after a kernel upgrade, and did mention the reboot in my first message...

However, I did not try a _cold restart. Is it probable that would make a difference?

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#7 2009-10-12 08:17:17

vacant
Member
From: downstairs
Registered: 2004-11-05
Posts: 802

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

What dates are vmlinuz and kernel26.img?

I'm also wondering how complex your setup is e.g. is your /boot separate, is it full, is it the same one grub/lilo is using, have you renamed the 2.6.30 vmlinuz to something like vmlinuz-2.6.30?

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#8 2009-10-12 09:57:31

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,839

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

whaler - apologies. I should make sure I'm fully awake before posting. smile

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#9 2009-10-12 10:05:55

Karmadon
Member
Registered: 2009-04-15
Posts: 6

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

I've got the same error after kernel upgrade to the latest 2.6.31.3. I have a separate /boot partition with a plenty of spare space.  So I had to boot with my arch livecd in order to downgrade to 2.6.30.

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#10 2009-10-12 11:49:19

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

vacant wrote:

What dates are vmlinuz and kernel26.img?

I'm also wondering how complex your setup is e.g. is your /boot separate, is it full, is it the same one grub/lilo is using, have you renamed the 2.6.30 vmlinuz to something like vmlinuz-2.6.30?

My set up is rather 'vanilla'... smile

I have a separate boot partition with GRUB, with plenty of extra room.
I have not renamed the 2.6.30 vmlinuz or any other file/directory on the root partition.

*After* the borked install I placed an extra parameter after the kernel append sentence in GRUB, as per the ATI wiki, even though I use 'radeonhd', not 'radeon'. I then ran 'mkinitcpio -p kernel26' a second time and rebooted. No change.

I then rolled back to 2.6.30 and everything is running as normal. There are a few issues, with an external harddisk, the pcspeaker etc., but I consider them minor and they have not caused problems with previous kernel installations. Since I have never even compiled a kernel, I can't begin to guess what is wrong... sad

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#11 2009-10-12 11:51:34

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

tomk wrote:

whaler - apologies. I should make sure I'm fully awake before posting. smile

(Almost) any attention is better than none smile

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#12 2009-10-17 23:00:28

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

A few days have passed and I noticed a new build of the default kernel - kernel26-2.6.31.4-1.

As before, it appeared to install without any errors, but upon reboot I get the same (console) error messages as with build 3:

quote
FATAL: Could not load /lib/modules/2.6.30-ARCH/modules.dep: No such file or
  directory

::Mounting Local Filesystems
mount: unknown filesystem type "jfs"

::Configuring System Clock
Cannot access the Hardware Clock via any known method. Use the --debug option
  to see the details of our search for an access method

::Starting Network
eth1: unknown interface: No such device
dhcpcd: eth1: interface not found or invalid

::Restoring ALSA levels
/usr/sbin/alsactl: load_state: 1608: No soundcards found
unquote

Rolling back to kernel 2.6.30 fixes usability of the system for now, but some day one or more vital dependency will break.

This is a relatively fresh install of the August Arch x86_64. The installation went smoothly, upgrading to the latest 2.6.30 kernel went smoothly, but the 2 latest 2.6.31 kernels bork the system almost completely. I really hope the devs are reading this forum.

Last edited by whaler (2009-10-17 23:05:48)

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#13 2009-10-18 07:30:32

vacant
Member
From: downstairs
Registered: 2004-11-05
Posts: 802

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

whaler wrote:

*After* the borked install I placed an extra parameter after the kernel append sentence in GRUB, as per the ATI wiki, even though I use 'radeonhd', not 'radeon'. I then ran 'mkinitcpio -p kernel26' a second time and rebooted. No change.

What do you mean "in GRUB". Did you edit your grub configuration and/or edit the command line during boot? Are these the same?

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#14 2009-10-18 07:43:18

Dieter@be
Forum Fellow
From: Belgium
Registered: 2006-11-05
Posts: 1,960
Website

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

I had the same problem.  As it turned out, /boot was not mounted during kernel installation.
The fix, for me, was:
- boot in the broken system
- uncomment /boot in fstab (mount /boot didn't work. it didn't recognize ext3 and mounting as ext2 didn't work)
- reinstall the 2.6.30 kernel with `pacman -U /var/pacman/cache..`, this made sure early and late userspace used the 'boot' directory on '/'
- reboot : gives a working system with 2.6.30
- uncomment /boot in fstab, mount it and install 2.6.31
- reboot: all was fine again


< Daenyth> and he works prolifically
4 8 15 16 23 42

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#15 2009-10-18 19:01:58

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

vacant wrote:

What do you mean "in GRUB". Did you edit your grub configuration and/or edit the command line during boot? Are these the same?

I am referring to editing GRUB, as in its menu.lst, as per the ATI.wiki. I did not issue anything (extra) from the command line.

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#16 2009-10-18 20:42:07

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

Dieter@be wrote:

I had the same problem.  As it turned out, /boot was not mounted during kernel installation.
The fix, for me, was: ( ... )

Thanks a lot, Dieter!

I had 2.6.30 running and tried first to go directly to 2.6.31... smile
However, following your instructions precisely, everything went as smooth as can be. I guess I should leave the /boot partition uncommented in fstab in the future? Or should I comment it again and just remember your fix procedure?

There is one downside to the new KMS functionality in the 2.6.31 kernel: graphic rendering is *CONSIDERABLY* slower. Also, MPlayer/SMplayer no longer works - at least not for wma-files. It's 1996 all over again... sad  I am using "radeonhd", which may be part of the reason, and will experiment a little with the settings suggested in the ATI.wiki (which does not mention "radeonhd" at all...)

Guess I should make a separate thread for this.

Last edited by whaler (2009-10-18 21:13:10)

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#17 2009-10-18 21:22:03

Dieter@be
Forum Fellow
From: Belgium
Registered: 2006-11-05
Posts: 1,960
Website

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

whaler wrote:
Dieter@be wrote:

I had the same problem.  As it turned out, /boot was not mounted during kernel installation.
The fix, for me, was: ( ... )

Thanks a lot, Dieter!

I had 2.6.30 running and tried first to go directly to 2.6.31... smile
However, following your instructions precisely, everything went as smooth as can be. I guess I should leave the /boot partition uncommented in fstab in the future? Or should I comment it again and just remember your fix procedure?

Yes, if you have a separate filesystem for /boot, you should leave it uncommented in fstab and mounted when you install a new kernel (watch out with the 'noauto' mount option).  during package installation it will show a warning if you have /boot not mounted but I guess we both overlooked it.

It is remarkable however,  I don't remember ever having an issue like this, do you?  It looks to me like something changed, I looked at the sources for kernel26 but couldn't find anything special.


< Daenyth> and he works prolifically
4 8 15 16 23 42

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#18 2009-10-18 22:13:25

whaler
Member
From: Oslo, Norway
Registered: 2008-03-25
Posts: 317

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

Dieter@be wrote:

Yes, if you have a separate filesystem for /boot, you should leave it uncommented in fstab and mounted when you install a new kernel (watch out with the 'noauto' mount option).  during package installation it will show a warning if you have /boot not mounted but I guess we both overlooked it.

It is not so surprising if I overlooked it... However, I cannot recall seeing such a warning? I am in the habit of copying both pacman's package install msgs and boot console msgs, but I don't think I have ever seen a warning about the /boot partition not being mounted.

Dieter@be wrote:

It is remarkable however,  I don't remember ever having an issue like this, do you?  It looks to me like something changed, I looked at the sources for kernel26 but couldn't find anything special.

During the 18 months I have used Arch I have received a faulty kernel twice. On both occasions the problem was another than this /boot partition issue. I have never had the /boot partition uncommented in fstab while using Arch, so something must have changed, or there is a new bug in the kernel code somewhere. It is significant that this only appears with the 2.6.31 kernel.

I have EXT3 on my boot partition, and I use this ending in fstab "defaults 0 1". Is it safe?

BTW - with "vga=773 nomodeset" in GRUB, graphics, incl. MPlayer etc., seem to be back to normal - in fact better than before, as I am now getting full repaints in OOo Calc! Of course, since I am not into gaming, I don't know if there is some other functionality missing... smile

Thanks again, Dieter - I will mark this thread solved!

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#19 2009-11-05 20:23:03

stanl
Member
Registered: 2009-11-05
Posts: 1

Re: [Solved] Kernel 2.6.31 cannot find "modules.dep"

I have the same problem.
Fresh install; pacman -Syu and now kernel 2.6.31 cannot find "modules.dep"

Solution didn't work, because I have everything on one partition.

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