Questions tagged [tmpfs]
The tmpfs tag has no summary.
200 questions
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Resizing filesystem to increase space in AWS EC2 instance
I created an AWS EC2 instance, and I am using the EC2 instance to maintain a database. I'm currently trying to perform some post-processing on my database (by quering my database in batches), but this ...
- 107
0
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63
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Declaring a bind mount in systemd-controlled initrd and persisting systemd attributes for the mount into the system
I know my title is a little bit convoluted so let me explain what I'm doing here in more detail. I am using a ephemeral root setup on my machine, essentially meaning that my / mount is a tmpfs and ...
- 43
2
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1
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144
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Weird result mounting a tmpfs as root in the directory tree
Using unshare -Umr I created a new user, mount namespaces where the calling process is moved into. Then via mount -t tmpfs tmpfs / I mounted a new tmpfs instance on the root / of the directory tree ...
- 165
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modifying systemd tmp.mount parameters [duplicate]
In RHEL 7 and later as well as other Linux distributions, systemctl enable tmp.mount makes the /tmp folder a tmpfs (a temporary file system).
In RHEL 8.10 for example, by default those parameters are ...
- 8,271
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What creates tmpfs directories /run, /dev/shm on systemd?
My systemd linux systems show several tmpfs directories (/run, /dev/shm, /run/lock and on my raspberry also /sys/fs/cgroup).
Alas, I cannot find where these top directories are created.
I know that ...
- 331
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1k
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What is the purpose of tmpfs mounts under /run/credentials?
I haven't seen these tmpfs /run/credentials ... listed mounts in my df output before.
What's it about
:> df -h
Filesystem Size Used Avail Use% Mounted on
tmpfs 1.0M 0 1....
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Why does systemd create so many tmpfs files? And how to disable them?
I have installed and updated Debian testing yesterday,
and now I see several files on tmpfs:
df -h
Sist. Arq. Tam. Usado Disp. Uso% Montado em
udev 16G 0 16G 0% /dev
tmpfs ...
- 79
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1
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48
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User accessible directory that is guaranteed to be tmpfs?
As in the title, I'm looking for a user accessible directory that is guaranteed to be tmpfs.
/tmp is not even guaranteed to be wiped between reboots, so it's out.
/run is guaranteed to be tmpfs, and ...
- 190
1
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1
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2k
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Using systemd-tmpfile to clear /tmp
I have a server (Ubuntu 22.04) which has a tmpfs partition mounted at /tmp. The server only reboots for security updates, so I can't rely on reboots to clear out /tmp.
systemd-tmpfile is using default ...
- 369
0
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1
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79
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Do applications have priority over tmpfs for RAM usage (in the presence of swap)?
TLDR; If /tmp in mounted as tmpfs, in the presence of swap, is there any kind of priority when swapping ? Does tmpfs start to swap before applications ?
FULL STORY
I have a laptop with 32G of RAM (...
- 1,855
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Here is how to add support for Brave browser in profile-sync-daemon
Profile-sync-daemon can be installed in Debian based systems with sudo apt install profile-sync-daemon and in Arch based systems with sudo pacman -S profile-sync-daemon, but it lacks native support ...
- 109
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0
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250
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/var/run persistence in Docker
I have just been bitten by a PID file problem in a (Debian) Docker container that is configured as --restart always
Trying to summarize the problem:
I start the apache2 service in my container. The ...
- 115
2
votes
1
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563
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Any way to enable user_xattr on tmpfs?
I am trying to cache CIFS share files on a ramdisk with cachefilesd, however cachefilesd requires the cache directory filesystem to support user_xattr. tmpfs does not by default. Is there any way to ...
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465
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will DNF [YUM] fail if /var/tmp is a tmpfs file system?
I was considering making /var/tmp a tmpfs mount, similar to systemctl enable tmp.mount in order to meet a security rule requesting /var/tmp be on a separate partition. I did not make that physical ...
- 8,271
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Why does ftruncate with a shared memory object not use memory?
I've observed that I can create a shared memory object and give it ostensibly any size with ftruncate, regardless of the resource limits on my system. The code below sets the size to 262 TB, and ...
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