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natrix
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PostPosted: Thu May 15, 2014 1:11 am    Post subject: Failed to mount /dev/shm [Solved] Reply with quote

Hello!!!

The boot of my PC show this message (in systemd-208-r3)

Code:
mounting tmpfs on /dev/shm failed: invalid argument
!!Failed to mount /dev/shm

How I fix it?

Some date:

fstab:
Code:
/dev/sda1               /boot           ext2            noauto,noatime  1 0
/dev/sda2               /mnt/Win8       auto           noauto,noatime  1 0
/dev/sda6               /mnt/Datos      auto           noatime         1 0
/dev/sda7               /               ext4            noatime         0 1
/dev/sda8               none            swap            sw              0 0
/dev/cdrom              /mnt/cdrom      auto            noauto,ro       0 0

Code:
# mount | grep shm
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)

Code:
# systemctl --failed
0 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.


Last edited by natrix on Mon May 26, 2014 4:24 pm; edited 1 time in total
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DONAHUE
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PostPosted: Thu May 15, 2014 5:22 am    Post subject: Reply with quote

looks like you are not running systemd?
does
Code:
grep -i systemd /usr/src/linux/.config
yield
Quote:
CONFIG_GENTOO_LINUX_INIT_SYSTEMD=y

what does
Code:
emerge -s systemd
yield?
what kernel options are being used? (in grub.cfg grub.conf elilo syslinux efi-stub kernel -- whatever boot loader you use) should include
Quote:
init=/usr/lib/systemd/systemd

what does
Code:
systemctl list-unit-files
yield

reference: https://wiki.gentoo.org/wiki/Systemd
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natrix
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PostPosted: Thu May 15, 2014 11:20 pm    Post subject: Reply with quote

Hi DONAHUE!!!

It are my outputs:

Code:
# grep -i systemd /usr/src/linux/.config
CONFIG_GENTOO_LINUX_INIT_SYSTEMD=y


Code:
# emerge -s systemd
Searching...   
[ Results for search key : systemd ]
[ Applications found : 6 ]

*  kde-misc/kcmsystemd [ Masked ]
      Latest version available: 0.6.1
      Latest version installed: [ Not Installed ]
      Size of files: 49 kB
      Homepage:      https://github.com/rthomsen/kcmsystemd
      Description:   KDE control module for systemd
      License:       GPL-3

*  sys-apps/gentoo-systemd-integration
      Latest version available: 2
      Latest version installed: 2
      Size of files: 50 kB
      Homepage:      https://bitbucket.org/mgorny/gentoo-systemd-integration
      Description:   systemd integration files for Gentoo
      License:       BSD

*  sys-apps/systemd
      Latest version available: 208-r3
      Latest version installed: 208-r3
      Size of files: 2,334 kB
      Homepage:      http://www.freedesktop.org/wiki/Software/systemd
      Description:   System and service manager for Linux
      License:       GPL-2 LGPL-2.1 MIT public-domain

*  sys-apps/systemd-sysv-utils [ Masked ]
      Latest version available: 212
      Latest version installed: [ Not Installed ]
      Size of files: 2,658 kB
      Homepage:      http://www.freedesktop.org/wiki/Software/systemd
      Description:   sysvinit compatibility symlinks and manpages
      License:       GPL-2

*  sys-apps/systemd-ui
      Latest version available: 2
      Latest version installed: 2
      Size of files: 146 kB
      Homepage:      http://www.freedesktop.org/wiki/Software/systemd
      Description:   System and service manager for Linux
      License:       GPL-2

*  sys-devel/systemd-m4 [ Masked ]
      Latest version available: 9999
      Latest version installed: [ Not Installed ]
      Size of files: 0 kB
      Homepage:      https://bitbucket.org/mgorny/systemd-m4/
      Description:   autoconf macros for packages using systemd
      License:       BSD


I use grub2 and genkernel-next.

Code:
GRUB_CMDLINE_LINUX="real_init=/usr/lib/systemd/systemd"


Code:
# systemctl list-unit-files


http://pastebin.com/BeZ7ZWfs

Some idea???
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DONAHUE
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PostPosted: Fri May 16, 2014 12:30 am    Post subject: Reply with quote

i'm systemd-212; 'systemctl --failed' produces no output, just drops to a new command prompt.

Can you tell if "mounting tmpfs on /dev/shm failed: invalid argument
!!Failed to mount /dev/shm" occurs while an initrd is running, kernel is running, or systemd init is running? The message seems irrelevant as mount finds tmpfs on /dev/shm

Here running
Code:
dmesg | grep -i shm
journalctl | grep -i shm
yields no entries.
searching for tmpfs yields only "devtmpfs: initialized" and "devtmpfs: mounted"
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natrix
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PostPosted: Fri May 16, 2014 2:55 am    Post subject: Reply with quote

Hi!!
My systemd is 208-r3. a new output??

The error "mounting tmpfs on /dev/shm failed" occurs after of grub2 and before to start the init.
I started the PC with openRC and the error is the same.

The next lines produces no output, just drops to a new command prompt.
Code:
dmesg | grep -i shm
journalctl | grep -i shm


but:

Code:
# journalctl -b | grep tmp
may 15 23:38:33 natrix kernel: tmpfs: No value for mount option 'strictatime'
may 15 23:38:33 natrix systemd[1]: tmp.mount: Directory /tmp to mount over is not empty, mounting anyway.


What is 'strictatime'??

Thank DONAHUE!!
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DONAHUE
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PostPosted: Fri May 16, 2014 4:22 am    Post subject: Reply with quote

man mount which is hard to read gracefully
http://manpages.courier-mta.org/htmlman8/mount.8.html easier to read
find/search atime and read through the variations
Take a look at /proc/mounts ?

Code:
journalctl -b | grep -a5 strictatime
anything interesting 5 lines above and below?

gentoo-sources or an exotic kernel?
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natrix
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PostPosted: Fri May 16, 2014 4:33 am    Post subject: Reply with quote

Very interesting!! thank a lot for the information :) :)

#nano -w /proc/mounts

Code:
rootfs / rootfs rw 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
none /run tmpfs rw,nosuid,nodev,relatime,mode=755 0 0
udev /dev devtmpfs rw,nosuid,relatime,size=10240k,nr_inodes=505717,mode=755 0 0
devpts /dev/pts devpts rw,relatime,gid=5,mode=620 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
/dev/sda7 / ext4 rw,noatime,data=ordered 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
tmpfs /sys/fs/cgroup tmpfs rw,nosuid,nodev,noexec,mode=755 0 0
cgroup /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,release_agent=/usr/lib/systemd/s$
cgroup /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct 0 0
systemd-1 /proc/sys/fs/binfmt_misc autofs rw,relatime,fd=25,pgrp=1,timeout=300,minproto=5,maxproto=5,$
mqueue /dev/mqueue mqueue rw,relatime 0 0
tmpfs /tmp tmpfs rw 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
/dev/sda1 /boot ext2 rw,relatime,errors=continue,user_xattr,acl 0 0
/dev/sda6 /mnt/Datos fuseblk rw,nosuid,nodev,noatime,user_id=0,group_id=0,allow_other,blksize=4096 0 0
gvfsd-fuse /run/user/1000/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0


What is wrong?
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DONAHUE
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PostPosted: Fri May 16, 2014 5:59 am    Post subject: Reply with quote

Code:
journalctl -b | grep -a5 strictatime
anything interesting 5 lines above and below?

Are you using gentoo-sources or an exotic kernel?

our /proc/mounts are essentially the same for tmp file systems, no strictatimes
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natrix
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PostPosted: Fri May 16, 2014 6:02 am    Post subject: Reply with quote

Code:
 # journalctl -b | grep -a5 strictatime
may 16 02:41:24 natrix kernel: rtc_cmos 00:09: setting system clock to 2014-05-16 02:41:17 UTC (1400208077)
may 16 02:41:24 natrix kernel: ALSA device list:
may 16 02:41:24 natrix kernel:   #0: HDA Intel at 0xd3200000 irq 44
may 16 02:41:24 natrix kernel:   #1: HDA NVidia at 0xd3080000 irq 17
may 16 02:41:24 natrix kernel: Freeing unused kernel memory: 792K (ffffffff815bb000 - ffffffff81681000)
may 16 02:41:24 natrix kernel: tmpfs: No value for mount option 'strictatime'
may 16 02:41:24 natrix systemd-udevd[1532]: starting version 208
may 16 02:41:24 natrix kernel: ACPI: bus type USB registered
may 16 02:41:24 natrix kernel: usbcore: registered new interface driver usbfs
may 16 02:41:24 natrix kernel: usbcore: registered new interface driver hub
may 16 02:41:24 natrix kernel: usbcore: registered new device driver usb


My kernel:

Code:
# emerge -s gentoo-source
Searching...   
[ Results for search key : gentoo-source ]
[ Applications found : 1 ]

*  sys-kernel/gentoo-sources
      Latest version available: 3.12.13
      Latest version installed: 3.12.13
      Size of files: 74,962 kB
      Homepage:      http://dev.gentoo.org/~mpagano/genpatches
      Description:   Full sources including the Gentoo patchset for the 3.12 kernel tree
      License:       GPL-2 !deblob? ( freedist )


some idea???
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kornel661
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PostPosted: Tue May 20, 2014 9:29 am    Post subject: Reply with quote

The same issue with systemd 208-r3 and 3.14.4-gentoo kernel.
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natrix
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PostPosted: Mon May 26, 2014 4:23 pm    Post subject: Reply with quote

Solution

Code:
genkernel --udev all
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thorsten164
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PostPosted: Sun Jun 01, 2014 6:41 pm    Post subject: Reply with quote

This was not the solution for me. The problem is that genkernel-next 55 contains a new patch for busybox that allows for the stricktatime option during mount. However, the compiled busybox is cached (from previous versions of genkernel-next) and not rebuilt.

So for me it helped to run
Code:
sudo rm /var/cache/genkernel/busybox-1.20.2-x86_64.tar.bz2


after that run as usual
Code:
sudo genkernel all


(udev should be activated in genkernel.conf as the previous author suggested)

Then busybox will be rebuilt and the error goes away.
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natrix
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PostPosted: Mon Jun 02, 2014 8:09 pm    Post subject: Reply with quote

Interesting.

thanks for the info :)
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truongan
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PostPosted: Fri Jun 20, 2014 8:43 pm    Post subject: Reply with quote

thorsten164 wrote:
This was not the solution for me. The problem is that genkernel-next 55 contains a new patch for busybox that allows for the stricktatime option during mount. However, the compiled busybox is cached (from previous versions of genkernel-next) and not rebuilt.

So for me it helped to run
Code:
sudo rm /var/cache/genkernel/busybox-1.20.2-x86_64.tar.bz2


after that run as usual
Code:
sudo genkernel all


(udev should be activated in genkernel.conf as the previous author suggested)

Then busybox will be rebuilt and the error goes away.


You are a lifesaver.

I have been struggling with numerous boot problem for months because genkernel using an old cached busybox built from last year. Now after a rebuilt everything seem to be in order again.

Thank you so much. I hate to dig up solved thread but I have to say thank you.
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boospy
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PostPosted: Thu Nov 27, 2014 4:06 pm    Post subject: Reply with quote

Thanks a lot, it helped me too! :)

Best Regards
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