The tmpfs tag has no wiki summary.
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1answer
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How do I make a tmpfs mountpoint persistent across reboots?
If I create a ram disk on cent os using tmpfs will it go away on restart? I know the data will go away (I would assume), but will it still survive a reboot?
I am going to allocate a ram disk for use ...
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2answers
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On system memory… specifically the difference between `tmpfs,` `shm,` and `hugepages…`
I've been curious lately about the various Linux kernel memory based filesystems.
Note: As far as I'm concerned, the questions below should be considered more or less optional when compared with a ...
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2answers
47 views
How can I check to see if the /tmp directory on my CentOS 5.x system is mounted on tmpfs?
CentOS 5.x
My understanding is that the contents of /tmp/ in CentOS 5.x can/are automatically purged by the OS via one of two methods:
A daily cron task running tmpwatch
If /tmp/is mounted on a ...
0
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1answer
65 views
Should tmpfs be unmounted at system shutdown?
Assume I have a linux system with the following partitions mounted (beside root):
proc on /proc
devtmpfs on /dev
devpts on /dev/pts
tmpfs on /dev/shm
sysfs on /sys
tmpfs on /var/run
tmpfs on ...
1
vote
1answer
143 views
special device tmpfs does not exist
I'm trying to speed up a project which uses a folder for cache by mounting the cache folder on tmpfs. But whenever I mount it I get this error message:
mount: special device tmpfs does not exist
...
13
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1answer
267 views
Why is /dev full?
The /dev.. is full:
SERVER:/dev # df -mP /dev
Filesystem 1048576-blocks Used Available Capacity Mounted on
udev 12042 12042 0 100% /dev
There is no ...
0
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1answer
107 views
mount tmpfs preserve current permissions
I have a directory of a web application cache and this has the permissions 755 (default), and I configured setfacl additional permissions.
the problem is that when I restart the system, the ...
1
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1answer
1k views
Can fstab options uid and gid be the user-group name or must they be numeric?
I'm learning how to set up a tmpfs in fstab for my www-data user and I was wondering if I can use the actual user/group name instead if the numeric ids (personal preference)?
I'm on Debian with ext4, ...
0
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1answer
91 views
Execute in Place an encrypted ram drive
I have found a few old posts claiming that tmpfs can execute in place. Is this true? If so, how? If not, is there a ram drive alternative?
Can this be done with a ram drive that is encrypted? If ...
0
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2answers
89 views
are daemon tmpfs executables copied unencrypted to memory upon execution? (prevent if so?)
When a daemon is executed, is the executable copied to memory?
If so, can it be copied encrypted?
If not, is there a way to prevent the executable from being copied to memory?
The executable is ...
0
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1answer
158 views
How can I use the tmpfs to accelerate my chrome browser start up?
Every time when I am trying to start the chrome browser, it is a little bit slow because the chrome need to load the cache and that may cause a big amount of disk IO.
My distribution is Debian ...
2
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1answer
688 views
use `/run/shm` (formerly `/dev/shm`) as a temp directory
Is it good practice to create a directory in /run/shm (formerly /dev/shm) and use that like a temp directory for an application?
Background: I am writing black box tests for a program which does a ...
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0answers
180 views
Moving /dev/shm/ to /run/shm in Arch?
Dolphin (The KDE4 FM) would not receive file change notifications for /dev/shm, but for /run/shm.
So now I would like to migrate /dev/shm/ to /run/shm, but I couldn't find the corresponding part in ...
1
vote
1answer
193 views
What parts of the filesystem to tmpfs/squashfs/sparseimage for USB live system
I want to create a live system on a USB key / SDCard with Linux Mint 14 (KDE or Debian Edition) that stores data persistently. The USB key needs to have at least one fat32 partition. As storage for ...
2
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1answer
254 views
tmpfs performance
I use avconv to make screen recording of gameplays on linux (yeah, I'm sorry, I am one of them, but I get more excited about the scripts than playing it self), but recently my harddrive has gone and ...
3
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1answer
378 views
Does the (source) device in a tmpfs type mount mean anything?
I just went into /etc/fstab (Linux) and changed my line for /tmp (on which a specific ext4 partition was previously mounted) to tmpfs. This was clearly a bit silly, but I wasn't thinking. Anyway, I ...
4
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1answer
4k views
Move /tmp to RAM
I am trying to move /tmp to RAM and obey good practice:
/var/tmp should NOT be placed in tmpfs, as it must survive reboots
not mount /tmp as a stand-alone tmpfs, but rely on /dev/shm or /run/shm
...
5
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3answers
2k views
Proper way to disable tmpfs on /run/shm
How do I disable tmpfs on /run/shm? I searched through initscripts and found that the following code checks the entry in fstab, but what should I change to make it not mount /run/shm? I'm running ...
6
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1answer
2k views
Tmpfs only with RAM
How to be sure that a tmpfs filesystem can only deal with physical and it's not using a swap partition on disk ?
Since i have a slow HDD and a fast RAM i would like, at least, giving higher priority ...
2
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2answers
131 views
Graphical archive manager that uses /tmp
I am looking for a (preferably) graphical archive manager that can be configured to use /tmp as a scratch area for decompressing.
My setup is as follows: I have my local workstation with /home ...
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0answers
427 views
How to disable tmpfs on /media in openSUSE?
In OS 11.4 /media is a regular directory. Whatever I put there, it stays.
In OS 12.1 /media is tmpfs. Whatever I put there, on next restart is gone.
The question is -- how to get rid of tmpfs on ...
2
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1answer
570 views
tmpfs and vm.swappiness
I have started tuning a bit Linux VM performance on my system (yes. I know that vm.swappiness=0 will kill kittens but I found 30-40 as much better for me as it improved my latency - probably at cost ...
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3answers
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(How) can I create a tmpfs as a regular (non-root) user?
The distribution is an Ubuntu server running the 2.6.35-30 Linux kernel.
I would like to have a directory that sits completely in memory. Is this possible without root privileges?
