Tagged Questions
0
votes
2answers
116 views
Writing a Linux file system for NFS
I want to write my own custom file system in Linux. Can I share it over standard NFS without making any changes to the local NFS server? If so what VFS APIs are required to be implemented by my file ...
6
votes
1answer
1k views
dd: writing '/dev/null': No space left on device
I am reading a 550MB file into /dev/null and I am getting
dd: writing '/dev/null': No space left on device
I was surprised. I thought /dev/null is a black hole where you can send as much as you ...
1
vote
0answers
81 views
memtester runs faster after couple of runs
I am using this test tool : http://pyropus.ca/software/memtester/
And I noticed that first 3 iterations take 4 hours but 30 iterations take only 12 hours. I was hoping that 30 iterations will take 40 ...
2
votes
0answers
47 views
What are the differences between the current Linux kernel and the Unix SVR4 kernel in terms of device drivers+i/o and virtual files systems?
Yes I realize that Linux supports many more file systems and recognizes more devices than Unix SVR4. I'm interested in what the differences are in the abstraction on top of an actual file system, or ...
1
vote
1answer
235 views
Is Native Language Support (NLS) kernel support still necessary?
Does ext4 / cifs system need kernel NLS support ? I'm not sure if it's being handled by user-space program (decoding / encoding) ?
1
vote
1answer
178 views
Recommendation on filesystem for embedded device - RAM or USB
It's been 4 years since I stopped working on my Linux internet radio box. My Linux box was Ubuntu 6.04 with Ext3 fs. At user-space, everything works perfectly except I occasionally bumped into ...
4
votes
2answers
380 views
Not enough space on / to install new kernel update
During a recent update I received this:
Installing: kernel-default-2.6.37.6-0.11.1 [error]
Installation of kernel-default-2.6.37.6-0.11.1 failed:
(with --nodeps --force) Error: Subprocess failed. ...
5
votes
3answers
671 views
Make changes to /sys persistent between boots
I want to make "echo 1 > /sys/kernel/mm/ksm/run" persistent between boots. I know that I can edit /etc/sysctl.conf to make /proc filesystem changes persist, but this doesn't seem to work for /sys. ...
2
votes
1answer
79 views
Is there any method to mount a block of memory as a filesystem in linux?
I have a question,in linux, is there any method to mount a block of memory as a filesystem?
For example, in X86 architecture, when power on, I reserve a block of memory about 8
Mbytes, and then when ...
3
votes
2answers
250 views
How to configure CONFIG_DEFAULT_RELATIME to disable relatime
Since linux 2.6.30, filesystems are mounted with "relatime" by default. In this discussion, Ingo Molnar says he has added the CONFIG_DEFAULT_RELATIME kernel option, which:
makes 'norelatime' the ...
6
votes
1answer
783 views
When was `relatime` made the default?
What is the first Linux kernel release to set relatime as the default mount option?
1
vote
2answers
440 views
Status of adding Reiser4 to the Linux kernel
I used the Reiser4 fs for some time and would love to see it get into the mainline kernel. I would think the project can still go forward even if Hans is not able to contribute these days. Is there ...
6
votes
1answer
227 views
Why do I need ntfs-3g when I have already enabled NTFS support in the kernel?
When configuring the kernel I see an option to add read-write support for NTFS. Then when mounting my NTFS partition I still have to install ntfs-3g and pass ntfs-3g as the type. I thought if I add ...
2
votes
2answers
136 views
Why does truncate fail for sizes above 2043G in ext3?
Why does this work:
truncate -s 2043G foo
...while this fails:
truncate -s 2044G foo
Why 2043 gigabytes, of all values?
