10-29-2009
What OS are you running spacewalk on?
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
I have been facing a telnet problem with our SunOS 5.7 box. Initially we were facing porblems in login both from the console as well as through telnet. The machine was hard-booted after which login from console is possible, but telnet connection is not.
The error that is displayed is... (1 Reply)
Discussion started by: manoj_gopal
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2. UNIX for Advanced & Expert Users
I have compiled binary file using "cc" on SunOS 5.8 and the same binary file i have copied to SunOS 5.9 and it is giving me core dump error.I want to know whether migration of compiled code from lower version to higer version created this problem. how can i solve this problem.I am pasting the core... (1 Reply)
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3. Solaris
In Solaris (SunOS 5.9) a problem is encountered as :
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4. Solaris
Hi Gurus
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Then, running either one of ssh or sftp, it asks for the... (0 Replies)
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5. Shell Programming and Scripting
Hi,
Can someone tell me why the "LargeFile" is coming first before the smaller files. Is there any way to list the files based on size column.
ls -g| sort -k 4
-rw-r--r-- 1 user 6117910528 Apr 28 15:04 LargeFile
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6. UNIX for Dummies Questions & Answers
Hi,
Whenever I run crontab -e from my remote terminal logged onto a SunOS 5.6 machine I get this:
root@beauvert:~> crontab -e
3495
-----
I think I have to set the terminal/editor. These are my environment variables:
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EDITOR vi
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7. Red Hat
OS: Fedora Linux 11
Spacewalk: 0.6
Installed by manual: https://fedorahosted.org/spacewalk/wiki/HowToInstall
I download special script (create_channel.py) for registarion client from CLI and added 3 channel with 32-Bit architecture and all OK:
Fedora 11 32-Bit
RHEL 4.7 32-bit
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8. Solaris
Hi:
I have some old code need to be compiled - which include a system call, the function name is: sigblock like:
.....
int holdnum = sigblock(sigmask(SIGCHLD));
....
but the compiler told me the sigblock cannot be found even I include signal.h. Looks like it is depricated - but I need to... (1 Reply)
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9. Red Hat
Hi guys I have been asked for the following:
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10. UNIX Desktop Questions & Answers
Does anyone know about the license of System V Release 4 & SunOS 4.1.4 source codes?
I have found them online in some archives but I am not sure if I am 'supposed' to download them (not sure if it is legal)
Can anyone tell me?
EDIT: A little bit wrong category. Please move it. (1 Reply)
Discussion started by: anapplegeek
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LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)
NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS
--predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO
bup-midx(1), bup-save(1)
BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown- bup-margin(1)