Re: Laptop bootup randomly stalls

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On 12.04.2014 00:23, Sam Varshavchik wrote:
> Richard Shaw writes:
> 
>> « HTML content follows »
>>
>> My wife's laptop has been having some sort of problem booting up since F18,  
>> though I have no idea if the current problem with F20 is the same problem or  
>> not.
>>
>>
>> The bootup process will randomly stall and most of the time you can't get to  
>> a VT though it isn't locked up as a Ctl-Alt-Del will cause a proper shutdown  
>> and reboot. There's a lot of noise trying to find the issue in journalctl -b  
>> -1 (after a successful boot) but I think MAYBE this is it...
> 
> I'm seeing this bug in F20 also. I use the solar theme, which makes it easy  
> to see that plymouth keeps churning, and it never stops. Usually after one  
> or two three-fingered salutes, my laptop decides to finish booting, but I'm  
> seeing this bug on several machines, not just the laptop.
> 
> This is either a plymouth bug, or a bug triggered by plymouth. Some hardware  
> seems to be more afflicted than other. My laptop get stuck maybe, on 5% of  
> all the boots. At one point, on one of my servers, plymouth started wedging  
> on maybe 75-80% of all the boots. I wasn't absolutely certain that plymouth  
> was the culprit, but I uninstalled it on that server. After all traces of  
> plymouth were gone (after the next kernel update brought in a fresh  
> initramfs) that server never failed to boot, ever since. So, it has to be  
> either plymouth, or plymouth-triggered.
> 
> I haven't been annoyed with my laptop often enough to do anything else, so  
> occasionally I just three-finger salute it, and that's that. I haven't  
> looked at systemd's journal; it's filled with tons of junk, and I just don't  
> have the energy to dig this out.
> 
> If this gets annoying, just rip plymouth out, and that should fix it.
> 

# systemctl stop plymouth-halt plymouth-kexec plymouth-poweroff
plymouth-quit-wait plymouth-quit plymouth-read-write plymouth-reboot
plymouth-start plymouth-switch-root systemd-ask-password-plymouth

# systemctl mask plymouth-halt plymouth-kexec plymouth-poweroff
plymouth-quit-wait plymouth-quit plymouth-read-write plymouth-reboot
plymouth-start plymouth-switch-root systemd-ask-password-plymouth

# ll /etc/systemd/system/*plymouth*

# vi /etc/dracut.conf.d/omit_dracut-module-plymouth.conf
omit_dracutmodules+=" plymouth "

# dracut -f -v


poma

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