Haiku boot pendrive készítése – videó

Hogyan készítsünk a letöltött ISO fájlunkból bootolható pendrive -ot linux alatt?
A válasz viszonylag egyszerű, egy régi és jól bevált programmal, a dd paranccsal természetesen.

A videóban a HaikuOS 64 bites verzióját töltöttem le, mert azzal még igazából sosem volt dolgom, a BeOS időkben meg ugye még nem is létezett ilyesmi, legalábbis az én környezetemben. Gyakorlatilag mindenki Debiant, Win98 -at és WinXP -t használt… 😀

A folyamat végén látható felirat, amit már ugye nem vártam meg:

A parancs és kimenete:

# dd if=haiku-nightly-anyboot.iso of=/dev/sdd
1236992+0 records in
1236992+0 records out
633339904 bytes (633 MB, 604 MiB) copied, 223,333 s, 2,8 MB/s

A dd parancs kicsit részleteseebben a beépített súgó alapján, jól láthatóan azért elég sok opció érhető el:

# dd --h
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=LEVEL The LEVEL of information to print to stderr;
 'none' suppresses everything but error messages,
 'noxfer' suppresses the final transfer statistics,
 'progress' shows periodic transfer statistics

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 Request to drop cache. See also oflag=sync
 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.

Options are:

--help display this help and exit
 --version output version information and exit

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report dd translation bugs to <http://translationproject.org/team/>
Full documentation at: <http://www.gnu.org/software/coreutils/dd>
or available locally via: info '(coreutils) dd invocation'

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