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The time now is Sat 25 May 2013, 15:55 All times are UTC - 4 |
 Forum index » Taking the Puppy out for a walk » Suggestions |
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Standardise Temp dir for Puppy frugal (outside of savefile)
Moderators: Flash, Ian, JohnMurga |
 
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darkcity
 Joined: 23 May 2010 Posts: 2215 Location: near here |
Does anyone else thin it would be useful to have a standard temp dir for Puppy outside of the savefile it is a annoying having to config the temp directory for every program, may a solution would be to have PupTempDir option, the default for an installed puppy could be /mnt/home/tmp what do people think? _________________ Wiki  Audacity 2.0.1 |
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Peterm321
Joined: 29 Jan 2009 Posts: 196 |
Perhaps assigning env variable TMPDIR in /etc/rc.d/rc.sysinit , /etc/rc.d/rc.local or /etc/profile could do this? http://stackoverflow.com/questions/31068/how-do-i-find-the-temp-directory-in-linux |
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darkcity
Joined: 23 May 2010 Posts: 2215 Location: near here |
That's sounds like a proper way to go 
I wonder if Apps would pick up on that, maybe symlink the /tmp dir to /home/tmp 
_________________ Wiki Audacity 2.0.1 |
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Peterm321
Joined: 29 Jan 2009 Posts: 196 |
You could see if apps are still opening files in the /tmp directory by using a program like lsof, but if you really want to keep temporary files out of /tmp altogether you may have to change /tmp to a symlink as you suggest. Some programs have /tmp hardcoded. If you change /tmp to a symlink in the middle of a session there may be issues. Probably best to change /tmp, if in fact you decide to do so, at the start of a session and reboot to be on a safer side. |
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darkcity
Joined: 23 May 2010 Posts: 2215 Location: near here |
I might try and change it before X win is loaded. Thanks for your help
_________________ Wiki Audacity 2.0.1 |
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sunburnt
 Joined: 08 Jun 2005 Posts: 4006 Location: Arizona, U.S.A. |
I believe that /tmp is outside of the Save file. Type "df" in rxvt and you`ll see the line:
If you put a file in /tmp and reboot it won`t be there. This is good as /tmp is fast in ram, and the Save file`s slow being on a partition. |
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darkcity
Joined: 23 May 2010 Posts: 2215 Location: near here |
The trouble is lots of programs put temporary files in /root/ which is inside the savefile - firefox is one example. why don't use /tmp --- what I'm trying to avoid is having to configure every program individually to use a location outside the savefile - also beginners won't know to do this.
_________________ Wiki Audacity 2.0.1 |
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sunburnt
Joined: 08 Jun 2005 Posts: 4006 Location: Arizona, U.S.A. |
Yep... And links don`t solve the slow Save access. This is a good example of poor programming and Linux`s legacy problems. It`s a shame industry and the populace need to be told what to do. But obviously they can`t handle it on their own. I`ve said many times that Linux files need to be organized into read-only and read-write directories. And the read-write files divided into /tmp and /etc ( more or less...). |
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Peterm321
Joined: 29 Jan 2009 Posts: 196 |
I have read that many programs are not writing to /root/ in terms of hardcoding but rather they are writing to the directory stored in environment variable $HOME Puppy Linux, being essentially a single user system defaults its $HOME to /root. But I think you may find that there is added to most puppy linuxes the "spot" user and there have been discussions in the murga forum about getting it to work with various apps with another home directory such as /mnt/home http://www.murga-linux.com/puppy/viewtopic.php?search_id=45282452&t=71358 |
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darkcity
Joined: 23 May 2010 Posts: 2215 Location: near here |
Thanks for the information about Spot
Ideally the solution wouldn't require using a different user. the problem is separating out what's stored in /root or $home ie configuration files, personal files, temp files, data (like bookmarks) _________________ Wiki Audacity 2.0.1 |
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Peterm321
Joined: 29 Jan 2009 Posts: 196 |
Well IIRC Firefox (in reference to a pervious post of yours in this thread) uses the "$HOME/.mozilla/firefox" folder. I believe you can also change the profile with the eg "firefox-bin -profile <path>" commandline option. Redefining $HOME will only affect the current shell and programs started from that shell. If you really want to kill all access to /root which I believe is in the savefile on systems that use a savefile, you can also consider the mount --bind command
Example:
NB make a copy of your /root (standard $HOME) in your /tmp directory then remap /tmp/root to /root. The effect should be system wide if I read the documentation correctly. Any settings would be lost between reboots unless the settings were synced back to the original /root or $HOME directory. |
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darkcity
Joined: 23 May 2010 Posts: 2215 Location: near here |
Thanks for reply, I haven't got time to fully look into at the moment. The things I want configuration files and things that are part of Puppy in /root but temp and personal file out of it. I know how to achieve this, however it wouldn't be obvious to a beginner. 
_________________ Wiki Audacity 2.0.1 |
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Karl Godt
 Joined: 20 Jun 2010 Posts: 2686 Location: Kiel,Germany |
There is a difference in frugal and full installations having a /tmp dir . /tmp in frugal mode normally is mounted as tmpfs into RAM, full installs PUPMODE=2 have /tmp mounted on the HD . just a few links about this theme : Ubuntu: Want to mount tmpfs on /tmp /tmp size fix A big tmp with small memory Do not delete /tmp/* at shutdown As for Puppy Lupu-5 : Lupu uses /sbin/pup_event_backend_modprobe_protect --daemon, which is nice code, but waits for input via cat /tmp/pipe . If that connection gets lost for a short time or even mounted read-only for a short time, that daemon does not work anymore and was able to hang my PC forever waiting for input in /etc/rc.d/rc.sysinit . |
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darkcity
Joined: 23 May 2010 Posts: 2215 Location: near here |
should programs use /tmp by default then? what about media programs that have big files? does swp come into it? need to look into pupmodes more . . . _________________ Wiki Audacity 2.0.1 |
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Karl Godt
Joined: 20 Jun 2010 Posts: 2686 Location: Kiel,Germany |
Yes it seems there is some confusion on using the term "/tmp" on Puppy . There is a difference in /initrd/pup_rw as temporary main folder and the simple /tmp directory . /initrd/pup_rw acts on flash PUPMODE=13 as tmp directory in RAM . tmp in the meaning of temporary until flushed to the save file by /sbin/pup_event_frontend_d running /usr/sbin/snapmergepuppy every minutes defined by /usr/sbin/eventmanager with variables stored in /etc/eventmanger configuration file . I post the
as example : tmpfs on /tmp type tmpfs (rw,relatime,size=1047368k) shmfs on /dev/shm type tmpfs (rw,relatime,size=247096k) The /init of initrd.gz and /etc/rc.s/rc.sysinit are responsible for calculating sizes . free is showing Mem: 1025304 total Swap: 3164152 total On PUPMODE=12 the save file is mounted as /dev/loop1 on /initrd/pup_rw type ext4 (rw,noatime,user_xattr,barrier=1,data=ordered) NOT temporary as on flash and writes like downloads go directly into the save-file and not to RAM first . (shinobar has found a solution by directing seamonkey dl to some folder on partition by altering the seamonkey preferences i think) |
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Standardise Temp dir for Puppy frugal (outside of savefile)
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