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bi-andrea
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Joined: 09 Mar 2010
Posts: 171
Location: cesenatico
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 Posted: Mon Jan 18, 2016 11:51 pm Post subject: come usare il comando dd [risolto] |
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vorrei copiare un'intera partizione su una chiavetta per poi ricopiare dalla chiavetta in un'altro pc e so che con il comando
si riesce a farlo solo che non conosco come impostare il comando
digitando
| Code: | dd --help
Usage: dd [OPERAND]...
or: dd OPTION
Copy a file, converting and formatting according to the operands.
bs=BYTES read and write up to BYTES bytes at a time
cbs=BYTES convert BYTES bytes at a time
conv=CONVS convert the file as per the comma separated symbol list
count=N copy only N input blocks
ibs=BYTES read up to BYTES bytes at a time (default: 512)
if=FILE read from FILE instead of stdin
iflag=FLAGS read as per the comma separated symbol list
obs=BYTES write BYTES bytes at a time (default: 512)
of=FILE write to FILE instead of stdout
oflag=FLAGS write as per the comma separated symbol list
seek=N skip N obs-sized blocks at start of output
skip=N skip N ibs-sized blocks at start of input
status=WHICH WHICH info to suppress outputting to stderr;
'noxfer' suppresses transfer stats, 'none' suppresses all
N and BYTES may be followed by the following multiplicative suffixes:
c =1, w =2, b =512, kB =1000, K =1024, MB =1000*1000, M =1024*1024, xM =M
GB =1000*1000*1000, G =1024*1024*1024, and so on for T, P, E, Z, Y.
Each CONV symbol may be:
ascii from EBCDIC to ASCII
ebcdic from ASCII to EBCDIC
ibm from ASCII to alternate EBCDIC
block pad newline-terminated records with spaces to cbs-size
unblock replace trailing spaces in cbs-size records with newline
lcase change upper case to lower case
ucase change lower case to upper case
sparse try to seek rather than write the output for NUL input blocks
swab swap every pair of input bytes
sync pad every input block with NULs to ibs-size; when used
with block or unblock, pad with spaces rather than NULs
excl fail if the output file already exists
nocreat do not create the output file
notrunc do not truncate the output file
noerror continue after read errors
fdatasync physically write output file data before finishing
fsync likewise, but also write metadata
Each FLAG symbol may be:
append append mode (makes sense only for output; conv=notrunc suggested)
direct use direct I/O for data
directory fail unless a directory
dsync use synchronized I/O for data
sync likewise, but also for metadata
fullblock accumulate full blocks of input (iflag only)
nonblock use non-blocking I/O
noatime do not update access time
nocache discard cached data
noctty do not assign controlling terminal from file
nofollow do not follow symlinks
count_bytes treat 'count=N' as a byte count (iflag only)
skip_bytes treat 'skip=N' as a byte count (iflag only)
seek_bytes treat 'seek=N' as a byte count (oflag only)
Sending a USR1 signal to a running 'dd' process makes it
print I/O statistics to standard error and then resume copying.
$ dd if=/dev/zero of=/dev/null& pid=$!
$ kill -USR1 $pid; sleep 1; kill $pid
18335302+0 records in
18335302+0 records out
9387674624 bytes (9.4 GB) copied, 34.6279 seconds, 271 MB/s
Options are:
--help display this help and exit
--version output version information and exit
Report dd bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report dd translation bugs to <http://translationproject.org/team/>
For complete documentation, run: info coreutils 'dd invocation' |
però non ho capito come si usa... 
_________________
Quando arrivi a Linux è un trauma, abituati a Windows, quando arrivi a Gentoo è uno spavento col brivido , però quando lo capisci sei uscito dall'università "GNU/Linux" 
Last edited by bi-andrea on Wed Jan 20, 2016 7:49 am; edited 1 time in total |
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cloc3
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Joined: 13 Jan 2004
Posts: 4788
Location: http://www.gentoo-users.org/user/cloc3/
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| Posted: Tue Jan 19, 2016 5:42 am Post subject: |
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| Code: |
dd if=/dev/tuaPartizione of=/dev/partizioneDellaTuaChiavetta
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a volte, si aggiunge il parametro bs=512.
le chiavette attuali, scaricate da Ubuntu, possiedono una unica partizione, ma io normalmente, preferisco organizzare le chiavette in un modo del tutto analogo ai normali dischi, che distinguono /dev/sda da /dev/sda1, /dev/sda2 e via dicendo.
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vu vu vu
gentù
mi piaci tu |
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bi-andrea
Apprentice
Joined: 09 Mar 2010
Posts: 171
Location: cesenatico
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| Posted: Tue Jan 19, 2016 12:57 pm Post subject: |
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perfetto
grazie
_________________
Quando arrivi a Linux è un trauma, abituati a Windows, quando arrivi a Gentoo è uno spavento col brivido , però quando lo capisci sei uscito dall'università "GNU/Linux" |
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