F15, diskless node, systemctl start tmpfs.device timeout

[Daniel J Walsh]

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On 09/05/2011 09:08 AM, Frantisek Hanzlik wrote:
> Xiao Peng Wang wrote:
>> Hi,
>> 
>> I made a diskless image against Fedora15, during the boot I found
>> it displayed the following error message and went into emergency
>> mode.
>> 
>> The error message: Starting Relabel all filesystems, if necessary
>> ^[[1;31maborted^[[0m because a dependency failed. [ 107.607155]
>> systemd[1]: Job fedora-autorelabel.service/start failed with
>> result 'dependency'. Starting Mark the need to relabel after
>> reboot ^[[1;31maborted^[[0m because a dependency failed. [
>> 107.625156] systemd[1]: Job
>> fedora-autorelabel-mark.service/start failed with result
>> 'dependency'. [ 107.634580] systemd[1]: Job local-fs.target/start
>> failed with result 'dependency'. [ 107.642615] systemd[1]:
>> Triggering OnFailure= dependencies of local-fs.target. [
>> 107.650738] systemd[1]: Job var-tmp.mount/start failed with
>> result 'dependency'. [ 107.658580] systemd[1]: Job
>> fsck at tmpfs.service/start failed with result 'dependency'. [
>> 107.666876] systemd[1]: Job tmpfs.device/start failed with
>> result 'timeout'. Welcome to emergency mode. Use "systemctl
>> default" or ^D to activate default mode.
>> 
>> And when I run the command 'service sshd start' to start the
>> sshd, it displayed the following error message: [ 8545.884404]
>> udev[2872]: starting version 167 [ 8635.560123] systemd[1]: Job
>> tmpfs.device/start timed out. [ 8635.565867] systemd[1]: Job
>> fedora-autorelabel.service/start failed with result
>> 'dependency'. [ 8635.574812] systemd[1]: Job
>> fedora-autorelabel-mark.service/start failed with result
>> 'dependency'. [ 8635.584217] systemd[1]: Job
>> local-fs.target/start failed with result 'dependency'. [
>> 8635.592203] systemd[1]: Triggering OnFailure= dependencies of 
>> local-fs.target. [ 8635.600311] systemd[1]: Job
>> var-tmp.mount/start failed with result 'dependency'. [
>> 8635.608102] systemd[1]: Job fsck at tmpfs.service/start failed
>> with result 'dependency'. [ 8635.616355] systemd[1]: Job
>> tmpfs.device/start failed with result 'timeout'. Welcome to
>> emergency mode. Use "systemctl default" or ^D to activate default
>> mode. Then I tried to start the tmpfs.device # systemctl start
>> tmpfs.device [432039.543362] systemd[1]: Job tmpfs.device/start
>> timed out. [432039.549335] systemdJob timed out. Looks like the
>> tmpfs.device was not installed. Did I miss something that 
>> depended by system? Any comments are appreciated.
>> 
>> 
>> 
>> Thanks Best Regards 
>> ----------------------------------------------------------------------
>>
>> 
Wang Xiaopeng (王晓朋)
>> IBM China System Technology Laboratory Tel: 86-10-82453455 Email:
>> wxp at cn.ibm.com Address: 28,ZhongGuanCun Software Park,No.8 Dong
>> Bei Wang West Road, Haidian District Beijing P.R.China 100193
>> !DSPAM:4e6497a4108619485919262!
> 
> Emergency mode systemd target is equivalent to runlevel 1
> singleuser mode at SysV init system, thus probably network isn't
> active and sshd refuses to run.
> 
> I'm not sure, but tmpfs (shm fs) need active swap, which probably
> isn't on diskless station.
> 
> Another question is, when SELinux is appropriate to run on
> diskless station (you may try disable it).
> 
> I also saw problem, when dracut was not able start diskless PXE
> F14 station when LAN default router was down (but it isn't this
> case).
> 
> Or there is just reciprocal proportion principle: when systemd
> consumes 10x more RAM then SysV init, then he can 10x fewer. 
> (narrowly, i686 F15 system comsumes 9x more RAM compared to i686
> F7 SysVinit on my systems)
> 
> 
> Franta Hanzlik


Yes since we do not support labeling on NFS,  SELinux most likely will
not work in this environment.

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