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Operating Systems
Linux
Ubuntu
dd cloning of whole disk
Post 302691915 by Royalist on Sunday 26th of August 2012 12:57:11 PM
08-26-2012
ddrescue explained
Lem my sincere thanks. It had occurred to me last night, that dropping the -g would probably solve my particular problem, having read your earlier post.
It must be difficult writing a manual to suit all levels of users, but I have re-read again, some of it and can see no way that it explains all that I needed to know and that you have explained so well. By a process of trial and error, if prepared to spend copious amounts of time, I would probably have made it do what I needed, but I also need to understand all the implications of the use and the full capabilities of ddrescue.
In the manual for example there are several example command lines or functions having multiple lines. I still don't understand whether these are supposed to called individually (i.e. one at a time), or may be called simultaneously by the use of shift + return keys at each line end and executed with a final return key?
Nowhere, is there an explanation of how to state the path for the log file and surely only advanced users would know where it should be filed?
I haven't been using Ubuntu for a full year yet and at the age of 75, maybe I don't pick things up as readily as youngsters, but I am putting a lot of effort into mastering it all.
Your comments have been most helpful, you have clearly devoted considerable time to helping out.
If you find the time to answer my final queries, it will be great. Many thanks. ---> look no wall!
Roy
It must be difficult writing a manual to suit all levels of users, but I have re-read again, some of it and can see no way that it explains all that I needed to know and that you have explained so well. By a process of trial and error, if prepared to spend copious amounts of time, I would probably have made it do what I needed, but I also need to understand all the implications of the use and the full capabilities of ddrescue.
In the manual for example there are several example command lines or functions having multiple lines. I still don't understand whether these are supposed to called individually (i.e. one at a time), or may be called simultaneously by the use of shift + return keys at each line end and executed with a final return key?
Nowhere, is there an explanation of how to state the path for the log file and surely only advanced users would know where it should be filed?
I haven't been using Ubuntu for a full year yet and at the age of 75, maybe I don't pick things up as readily as youngsters, but I am putting a lot of effort into mastering it all.
Your comments have been most helpful, you have clearly devoted considerable time to helping out.
If you find the time to answer my final queries, it will be great. Many thanks. ---> look no wall!
Roy
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LEARN ABOUT DEBIAN
file2sdr
FILE2SDR(1) ICI executables FILE2SDR(1) NAME
file2sdr - SDR data ingestion test program SYNOPSIS
file2sdr configFlags fileName DESCRIPTION
file2sdr stress-tests SDR data ingestion by repeatedly writing all text lines of the file named fileName to one of a series of non-volatile linked lists created in a test SDR data store named "testsdrconfigFlags". By incorporating the data store configuration into the name (e.g., "testsdr14") we make it relatively easy to perform comparative testing on SDR data stores that are identical aside from their configuration settings. The operation of file2sdr is cyclical: a new linked list is created each time the program finishes copying the file's text lines and starts over again. If you use ^C to terminate file2sdr and then restart it, the program resumes operation at the point where it left off. After writing each line to the current linked list, file2sdr gives a semaphore to indicate that the list is now non-empty. This is mainly for the benefit of the complementary test program sdr2file(1). At the end of each cycle file2sdr appends a final EOF line to the current linked list, containing the text "*** End of the file ***", and prints a brief performance report: Processing I<lineCount> lines per second. EXIT STATUS
0 file2sdr has terminated. FILES
No configuration files are needed. ENVIRONMENT
No environment variables apply. DIAGNOSTICS
Diagnostic messages produced by file2sdr are written to the ION log file ion.log. Can't use sdr. ION system error. Check for earlier diagnostic messages describing the cause of the error; correct problem and rerun. Can't create semaphore. ION system error. Check for earlier diagnostic messages describing the cause of the error; correct problem and rerun. SDR transaction failed. ION system error. Check for earlier diagnostic messages describing the cause of the error; correct problem and rerun. Can't open input file Operating system error. Check errtext, correct problem, and rerun. Can't reopen input file Operating system error. Check errtext, correct problem, and rerun. Can't read from input file Operating system error. Check errtext, correct problem, and rerun. BUGS
Report bugs to <ion-bugs@korgano.eecs.ohiou.edu> SEE ALSO
sdr2file(1), sdr(3) perl v5.14.2 2012-05-25 FILE2SDR(1)