New -osirrox option sparse= controls extraction into sparse files
This commit is contained in:
@ -4221,6 +4221,20 @@ The directory permissions on disk have to allow rwx.
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compared with the recorded MD5. A mismatch causes an error message
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of severity SORRY. Option *check_md5_force* causes an error message
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if -md5 is "on" but no MD5 is recorded for the data file.
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Option *sparse=* controls production of sparse files during
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extraction of files from the ISO filesystem. Default is
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*sparse=off*.
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A positive number like in *sparse=1m* sets the minimum requirement
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for the length of a sequence of 0-bytes which shall be represented
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by a gap. This saves disk space if the disk filesystem supports
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sparse files. A gap gets created by help of lseek(2) if a sequence
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of read buffers, which contain only 0-bytes, bears at least the
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minimum amount of bytes. Expect read buffers to be in the size
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range of 32k or 64k.
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Command -paste_in creates gaps only if the writing begins at or
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after the end of the existing disk file. So the sequence of
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-paste_in commands matters. Command -concat does not create sparse
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files.
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-extract iso_rr_path disk_path
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Copy the file objects at and underneath iso_rr_path to their
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corresponding addresses at and underneath disk_path. This is the
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@ -5519,14 +5533,14 @@ File: xorriso.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: Top
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* -compare_l reports ISO/disk differences: Navigate. (line 147)
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* -compare_r reports ISO/disk differences: Navigate. (line 143)
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* -compliance controls standard compliance: SetWrite. (line 62)
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* -concat copies ISO file content: Restore. (line 125)
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* -concat copies ISO file content: Restore. (line 139)
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* -copyright_file sets copyright file name: SetWrite. (line 245)
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* -cpax copies files to disk: Restore. (line 107)
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* -cpax copies files to disk: Restore. (line 121)
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* -cpr inserts like with cp -r: Insert. (line 164)
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* -cpx copies files to disk: Restore. (line 96)
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* -cpx copies files to disk: Restore. (line 110)
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* -cp_clone copies ISO directory tree: Insert. (line 196)
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* -cp_rx copies file trees to disk: Restore. (line 110)
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* -cp_rx copies file trees to disk <1>: Restore. (line 118)
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* -cp_rx copies file trees to disk: Restore. (line 124)
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* -cp_rx copies file trees to disk <1>: Restore. (line 132)
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* -cut_out inserts piece of data file: Insert. (line 139)
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* -data_cache_size adjusts read cache size: Loading. (line 353)
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* -dev acquires one drive for input and output: AqDrive. (line 12)
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@ -5553,10 +5567,10 @@ File: xorriso.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: Top
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* -error_behavior controls error workarounds: Exception. (line 92)
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* -external_filter registers data filter: Filter. (line 20)
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* -external_filter unregisters data filter: Filter. (line 47)
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* -extract copies file tree to disk: Restore. (line 69)
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* -extract_cut copies file piece to disk: Restore. (line 87)
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* -extract_l copies files to disk: Restore. (line 83)
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* -extract_single copies file to disk: Restore. (line 80)
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* -extract copies file tree to disk: Restore. (line 83)
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* -extract_cut copies file piece to disk: Restore. (line 101)
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* -extract_l copies files to disk: Restore. (line 97)
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* -extract_single copies file to disk: Restore. (line 94)
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* -file_name_limit curbs length of file names: Loading. (line 267)
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* -file_size_limit limits data file size: SetInsert. (line 7)
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* -find traverses and alters ISO tree: CmdFind. (line 7)
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@ -5610,7 +5624,7 @@ File: xorriso.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: Top
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* -md5 controls handling of MD5 sums: Loading. (line 184)
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* -mkdir creates ISO directory: Insert. (line 177)
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* -modesty_on_drive keep drive buffer hungry: SetWrite. (line 406)
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* -mount issues mount command for ISO session: Restore. (line 153)
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* -mount issues mount command for ISO session: Restore. (line 167)
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* -mount_cmd composes mount command line: Inquiry. (line 49)
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* -mount_cmd controls mount command: Inquiry. (line 65)
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* -msg_op perform operations on program messages: Frontend. (line 27)
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@ -5630,7 +5644,7 @@ File: xorriso.info, Node: CommandIdx, Next: ConceptIdx, Prev: Legal, Up: Top
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* -pacifier controls pacifier text form: Emulation. (line 166)
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* -padding sets amount or mode of image padding: SetWrite. (line 494)
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* -page set terminal geometry: DialogCtl. (line 18)
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* -paste_in copies file into disk file: Restore. (line 121)
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* -paste_in copies file into disk file: Restore. (line 135)
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* -pathspecs sets meaning of = with -add: SetInsert. (line 115)
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* -path_list inserts paths from disk file: Insert. (line 81)
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* -pkt_output consolidates text output: Frontend. (line 7)
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@ -5803,7 +5817,7 @@ File: xorriso.info, Node: ConceptIdx, Prev: CommandIdx, Up: Top
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* Emulation, pacifier form, -pacifier: Emulation. (line 166)
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* Examples: Examples. (line 6)
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* extattr, _definition: Extras. (line 66)
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* File content, copy, -concat: Restore. (line 125)
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* File content, copy, -concat: Restore. (line 139)
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* File names, curb length, -file_name_limit: Loading. (line 267)
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* File names, if neither Rock Ridge nor Joliet: Loading. (line 229)
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* Filter, apply to file tree, -set_filter_r: Filter. (line 84)
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@ -5966,22 +5980,22 @@ File: xorriso.info, Node: ConceptIdx, Prev: CommandIdx, Up: Top
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* Relocation directory, set name, -rr_reloc_dir: SetWrite. (line 150)
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* Rename, in ISO image, -move: Manip. (line 31)
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* Rename, in ISO image, -mv: Manip. (line 37)
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* Restore, copy file into disk file, -paste_in: Restore. (line 121)
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* Restore, copy file piece to disk, -extract_cut: Restore. (line 87)
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* Restore, copy file to disk, -extract_single: Restore. (line 80)
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* Restore, copy file tree to disk, -extract: Restore. (line 69)
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* Restore, copy file trees to disk, -cp_rx: Restore. (line 110)
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* Restore, copy file trees to disk, -cp_rx <1>: Restore. (line 118)
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* Restore, copy files to disk, -cpax: Restore. (line 107)
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* Restore, copy files to disk, -cpx: Restore. (line 96)
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* Restore, copy files to disk, -extract_l: Restore. (line 83)
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* Restore, copy file into disk file, -paste_in: Restore. (line 135)
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* Restore, copy file piece to disk, -extract_cut: Restore. (line 101)
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* Restore, copy file to disk, -extract_single: Restore. (line 94)
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* Restore, copy file tree to disk, -extract: Restore. (line 83)
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* Restore, copy file trees to disk, -cp_rx: Restore. (line 124)
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* Restore, copy file trees to disk, -cp_rx <1>: Restore. (line 132)
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* Restore, copy files to disk, -cpax: Restore. (line 121)
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* Restore, copy files to disk, -cpx: Restore. (line 110)
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* Restore, copy files to disk, -extract_l: Restore. (line 97)
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* Restore, enable ISO-to-disk, -osirrox: Restore. (line 18)
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* Result layout, more shell-like, -sh_style_result: Scripting.
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(line 61)
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* Rock Ridge, _definition: Extras. (line 6)
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* Session, altered start address, -displacement: Loading. (line 78)
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* Session, info string, -session_string: Inquiry. (line 74)
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* Session, issue mount command, -mount: Restore. (line 153)
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* Session, issue mount command, -mount: Restore. (line 167)
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* Session, log when written, -session_log: Scripting. (line 134)
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* Session, mount command line, -mount_cmd: Inquiry. (line 49)
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* Session, mount parameters, -mount_opts: Inquiry. (line 65)
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@ -6066,32 +6080,32 @@ Node: Inquiry197292
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Node: Navigate206174
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Node: Verify214881
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Node: Restore226030
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Node: Emulation235196
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Node: Scripting245652
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Node: Frontend253435
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Node: Examples263061
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Node: ExDevices264239
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Node: ExCreate264900
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Node: ExDialog266200
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Node: ExGrowing267471
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Node: ExModifying268280
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Node: ExBootable268790
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Node: ExCharset269345
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Node: ExPseudo270241
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Node: ExCdrecord271168
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Node: ExMkisofs271488
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Node: ExGrowisofs273385
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Node: ExException274538
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Node: ExTime274996
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Node: ExIncBackup275454
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Node: ExRestore279480
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Node: ExRecovery280426
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Node: Files280998
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Node: Environ282332
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Node: Seealso283080
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Node: Bugreport283797
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Node: Legal284388
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Node: CommandIdx285400
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Node: ConceptIdx303016
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Node: Emulation236013
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Node: Scripting246469
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Node: Frontend254252
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Node: Examples263878
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Node: ExDevices265056
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Node: ExCreate265717
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Node: ExDialog267017
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Node: ExGrowing268288
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Node: ExModifying269097
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Node: ExBootable269607
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Node: ExCharset270162
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Node: ExPseudo271058
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Node: ExCdrecord271985
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Node: ExMkisofs272305
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Node: ExGrowisofs274202
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Node: ExException275355
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Node: ExTime275813
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Node: ExIncBackup276271
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Node: ExRestore280297
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Node: ExRecovery281243
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Node: Files281815
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Node: Environ283149
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Node: Seealso283897
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Node: Bugreport284614
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Node: Legal285205
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Node: CommandIdx286217
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Node: ConceptIdx303833
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End Tag Table
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