Hi
I am getting belo error while using yum:-
Please provide me this command with valid url if possible.If you can explain in few lines like how to install then it would be a great help rather than one line syntax.
Hey everybody. Its been awhile since I last posted but in short I am now in posession of RedHat Linux 7.0 which I got from a book called the RedHat 7 Bible. As this is not an official distribution I cannot get product support from RedHat so I decided to try here.
I have three computers. I... (2 Replies)
I am trying to install this driver: http://www.asus.com/support/download/selectftp.aspx?l1_id=1&l2_id=15&l3_id=15&m_id=1&f_name=5702_558.zip~zaqwedc hoping it will correct my problem with my ethernet card. I am following the instructions in the text file that came with download...
it says to... (7 Replies)
Does anyone know of an expect/tcl forum that is as helpful as this one is for shell scripting?
Or if anyone has any expect knowledge, can you please provide some guidance on how to write to a local error log based on output from a ssh session?
I have something like this:
foreach host... (2 Replies)
Hi,
i have tried to install datastage server on redhat Linux operating system. But i unable to install the datastage sevrer.
here are the details of the system.
1. Lynix installed using vmwear.
vmwear Version :7.0.1 build-227600
2. lynix version information.
uname -a
... (1 Reply)
Hi,
I have 2 question.
1)how can I install the redhat linux 5 into USB disk and boot from USB disk forever.
2) how can I backup an existing redhat linux from hd to USB by disk image and make the USB bootable afterward ,
so I can use usb disk to boot the linux in another machine ....
Please... (0 Replies)
Hi Guys ,
I am new to Linux enviornment , I have purchased Huawei 355 Modem as they specify it works with linux enviornment but Not sure how to install it , when ever I try to install I am getting error , below is the error message
Error Message : Install NDIS driver failed.
The... (4 Replies)
Hi there,
I am trying to install few PHP tools in my Linux server by creating RPMs from source ( tar.gz) files. The issue here is that the tar.gz files does not have a configure file and so I am not able to do
./configure
make
install
opertations. I tried downloading src.rpms of these tools,... (0 Replies)
Hi
I need to install expect in redhat.
through net I came to know that I must install tcl too in order to make expect work.
I have downloaded both packages but not able to install
# ls -lrt
total 3720
18:33 tcl8.4.20-src.tar.gz
18:33 expect5.45.3.tar.gz
18:40 expect5.45.3... (7 Replies)
I wish to install inotify-tools-3.20.1-2.4.x86_64.rpm on Linux and fire inotifywait command.
Initially i was looking for "inotify-tools-3.xx.tar.gz" as instructed here http://jensd.be/248/linux/use-inotify-tools-on-centos-7-or-rhel-7-to-watch-files-and-directories-for-events
I have... (9 Replies)
Discussion started by: mohtashims
9 Replies
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)