AW: zRAM broken on Raring?

[Nio Wiklund]

Thank you Leszek :-)

On 2013-09-29 10:17, Leszek Lesner wrote:
> It can be disabled just like any other upstart service. 
> Here is a short documentation link:
> ‎http://upstart.ubuntu.com/cookbook/#disabling-a-job-from-automatically-starting
> 
> So renaming /etc/init/zram-config.conf to
> /etc/init/zram-config.donotstart should work here.
> 
> *Von: *Nio Wiklund
> *Gesendet: *Sonntag, 29. September 2013 10:11
> *An: *Leszek Lesner; John Hupp; lubuntu-users at lists.ubuntu.com
> *Betreff: *Re: AW: zRAM broken on Raring?
> 
> 
> Hi Leszek,
> 
> John has zRAM in Raring. It was pulled in by a package he installed, and
> I try to help him switch it off.
> 
> Probably it is better to do it in /etc/init.d, but I am not familiar
> with that method, so I didn't suggest that method. Please describe it,
> I'm reading and learning :-)
> 
> Best regards
> Nio
> 
> On 2013-09-29 10:03, Leszek Lesner wrote:
>> Honestlky I don't get the cronjob. Why is it necessary? On reboot the
>> init system runs the stop command on zram-config in /etc/init.d which
>> dies exactly the same as the cronjob here.
>>
>> *Von: *Nio Wiklund
>> *Gesendet: *Sonntag, 29. September 2013 08:29
>> *An: *John Hupp; lubuntu-users at lists.ubuntu.com
>> *Betreff: *Re: zRAM broken on Raring?
>>
>>
>> On 2013-09-29 02:23, John Hupp wrote:
>>> On 9/28/2013 12:23 PM, sudodus wrote:
>>>> Hi John,
>>>>
>>>> Yes, let us hope the bug will be fixed soon, and it will be
>>>> back-ported :-)
>>>>
>>>> Can you run your application without zRAM? You can switch it off in a
>>>> simple way (and have it ready for reactivation) like this with crontab.
>>>> Edit the crontab with
>>>>
>>>> sudo crontab -e
>>>>
>>>> $ sudo crontab -l |tail -n3
>>>> # m h dom mon dow command
>>>> @reboot /sbin/swapoff /dev/zram*
>>>> @reboot /sbin/rmmod zram
>>>>
>>>> Best regards
>>>> Nio
>>>
>>> I set up a root crontab as you suggested, Nio, and syslog confirms that
>>> the two crontab commands are run after the zram setup commands.
>>>
>>> But sudo parted -l still reports:
>>> Error: /dev/zram1: unrecognised disk label
>>>
>>> Does anyone know if the zram1 device would be using memory (the setup
>>> command designated 512MB for zram on this 1GB setup) or otherwise doing
>>> any harm?
>>
>> Hi John,
>>
>> The zRAM is not removed, only de-activated. Only if zRAM is used already
>> '@reboot', when cron runs the command, and there is no place to put the
>> content, then swapoff would fail (I think).
>>
>> 1. Did you check with
>>
>> swapon -s
>>
>> This command should return no zram block device.
>>
>> 2. Check the memory with
>>
>> free -m
>>
>> and install and run
>>
>> htop
>>
>> to check if something related to zram is running or using memory.
>>
>> Best regards
>> Nio
>>
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