source: MondoRescue/branches/2.2.5/mindi-busybox/util-linux/Config.in @ 1765

Last change on this file since 1765 was 1765, checked in by Bruno Cornec, 13 years ago

Update to busybox 1.7.2

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Line 
1#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
6menu "Linux System Utilities"
7
8config DMESG
9    bool "dmesg"
10    default n
11    help
12      dmesg is used to examine or control the kernel ring buffer.  When the
13      Linux kernel prints messages to the system log, they are stored in
14      the kernel ring buffer.  You can use dmesg to print the kernel's ring
15      buffer, clear the kernel ring buffer, change the size of the kernel
16      ring buffer, and change the priority level at which kernel messages
17      are also logged to the system console.  Enable this option if you
18      wish to enable the 'dmesg' utility.
19
20config FEATURE_DMESG_PRETTY
21    bool "pretty dmesg output"
22    default y
23    depends on DMESG
24    help
25      If you wish to scrub the syslog level from the output, say 'Y' here.
26      The syslog level is a string prefixed to every line with the form "<#>".
27
28      With this option you will see:
29        # dmesg
30        Linux version 2.6.17.4 .....
31        BIOS-provided physical RAM map:
32         BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
33
34      Without this option you will see:
35        # dmesg
36        <5>Linux version 2.6.17.4 .....
37        <6>BIOS-provided physical RAM map:
38        <6> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
39
40config FBSET
41    bool "fbset"
42    default n
43    help
44      fbset is used to show or change the settings of a Linux frame buffer
45      device.  The frame buffer device provides a simple and unique
46      interface to access a graphics display.  Enable this option
47      if you wish to enable the 'fbset' utility.
48
49config FEATURE_FBSET_FANCY
50    bool "Turn on extra fbset options"
51    default n
52    depends on FBSET
53    help
54      This option enables extended fbset options, allowing one to set the
55      framebuffer size, color depth, etc.  interface to access a graphics
56      display.  Enable this option if you wish to enable extended fbset
57      options.
58
59config FEATURE_FBSET_READMODE
60    bool "Turn on fbset readmode support"
61    default n
62    depends on FBSET
63    help
64      This option allows fbset to read the video mode database stored by
65      default as /etc/fb.modes, which can be used to set frame buffer
66      device to pre-defined video modes.
67
68config FDFLUSH
69    bool "fdflush"
70    default n
71    help
72      fdflush is only needed when changing media on slightly-broken
73      removable media drives.  It is used to make Linux believe that a
74      hardware disk-change switch has been actuated, which causes Linux to
75      forget anything it has cached from the previous media.  If you have
76      such a slightly-broken drive, you will need to run fdflush every time
77      you change a disk.  Most people have working hardware and can safely
78      leave this disabled.
79
80config FDFORMAT
81    bool "fdformat"
82    default n
83    help
84      fdformat is used to low-level format a floppy disk.
85
86config FDISK
87    bool "fdisk"
88    default n
89    help
90      The fdisk utility is used to divide hard disks into one or more
91      logical disks, which are generally called partitions.  This utility
92      can be used to list and edit the set of partitions or BSD style
93      'disk slices' that are defined on a hard drive.
94
95config FDISK_SUPPORT_LARGE_DISKS
96    bool "support over 4GB disks"
97    default y
98    depends on FDISK
99    help
100      Enable this option to support large disks > 4GB.
101
102config FEATURE_FDISK_WRITABLE
103    bool "Write support"
104    default y
105    depends on FDISK
106    help
107      Enabling this option allows you to create or change a partition table
108      and write those changes out to disk.  If you leave this option
109      disabled, you will only be able to view the partition table.
110
111config FEATURE_AIX_LABEL
112    bool "Support AIX disklabels"
113    default n
114    depends on FDISK && FEATURE_FDISK_WRITABLE
115    help
116      Enabling this option allows you to create or change AIX disklabels.
117      Most people can safely leave this option disabled.
118
119config FEATURE_SGI_LABEL
120    bool "Support SGI disklabels"
121    default n
122    depends on FDISK && FEATURE_FDISK_WRITABLE
123    help
124      Enabling this option allows you to create or change SGI disklabels.
125      Most people can safely leave this option disabled.
126
127config FEATURE_SUN_LABEL
128    bool "Support SUN disklabels"
129    default n
130    depends on FDISK && FEATURE_FDISK_WRITABLE
131    help
132      Enabling this option allows you to create or change SUN disklabels.
133      Most people can safely leave this option disabled.
134
135config FEATURE_OSF_LABEL
136    bool "Support BSD disklabels"
137    default n
138    depends on FDISK && FEATURE_FDISK_WRITABLE
139    help
140      Enabling this option allows you to create or change BSD disklabels
141      and define and edit BSD disk slices.
142
143config FEATURE_FDISK_ADVANCED
144    bool "Support expert mode"
145    default n
146    depends on FDISK && FEATURE_FDISK_WRITABLE
147    help
148      Enabling this option allows you to do terribly unsafe things like
149      define arbitrary drive geometry, move the beginning of data in a
150      partition, and similarly evil things.  Unless you have a very good
151      reason you would be wise to leave this disabled.
152
153config FREERAMDISK
154    bool "freeramdisk"
155    default n
156    help
157      Linux allows you to create ramdisks.  This utility allows you to
158      delete them and completely free all memory that was used for the
159      ramdisk.  For example, if you boot Linux into a ramdisk and later
160      pivot_root, you may want to free the memory that is allocated to the
161      ramdisk.  If you have no use for freeing memory from a ramdisk, leave
162      this disabled.
163
164config FSCK_MINIX
165    bool "fsck_minix"
166    default n
167    help
168      The minix filesystem is a nice, small, compact, read-write filesystem
169      with little overhead.  It is not a journaling filesystem however and
170      can experience corruption if it is not properly unmounted or if the
171      power goes off in the middle of a write.  This utility allows you to
172      check for and attempt to repair any corruption that occurs to a minix
173      filesystem.
174
175config MKFS_MINIX
176    bool "mkfs_minix"
177    default n
178    help
179      The minix filesystem is a nice, small, compact, read-write filesystem
180      with little overhead.  If you wish to be able to create minix filesystems
181      this utility will do the job for you.
182
183comment "Minix filesystem support"
184    depends on FSCK_MINIX || MKFS_MINIX
185
186config FEATURE_MINIX2
187    bool "Support Minix fs v2 (fsck_minix/mkfs_minix)"
188    default y
189    depends on FSCK_MINIX || MKFS_MINIX
190    help
191      If you wish to be able to create version 2 minix filesystems, enable this.
192      If you enabled 'mkfs_minix' then you almost certainly want to be using the
193      version 2 filesystem support.
194
195config GETOPT
196    bool "getopt"
197    default n
198    help
199      The getopt utility is used to break up (parse) options in command
200      lines to make it easy to write complex shell scripts that also check
201      for legal (and illegal) options.  If you want to write horribly
202      complex shell scripts, or use some horribly complex shell script
203      written by others, this utility may be for you.  Most people will
204      wisely leave this disabled.
205
206config HEXDUMP
207    bool "hexdump"
208    default n
209    help
210      The hexdump utility is used to display binary data in a readable
211      way that is comparable to the output from most hex editors.
212
213config HWCLOCK
214    bool "hwclock"
215    default n
216    help
217      The hwclock utility is used to read and set the hardware clock
218      on a system.  This is primarily used to set the current time on
219      shutdown in the hardware clock, so the hardware will keep the
220      correct time when Linux is _not_ running.
221
222config FEATURE_HWCLOCK_LONG_OPTIONS
223    bool "Support long options (--hctosys,...)"
224    default n
225    depends on HWCLOCK && GETOPT_LONG
226    help
227      By default, the hwclock utility only uses short options.  If you
228      are overly fond of its long options, such as --hctosys, --utc, etc)
229      then enable this option.
230
231config FEATURE_HWCLOCK_ADJTIME_FHS
232    bool "Use FHS /var/lib/hwclock/adjtime"
233    default y
234    depends on HWCLOCK
235    help
236      Starting with FHS 2.3, the adjtime state file is supposed to exist
237      at /var/lib/hwclock/adjtime instead of /etc/adjtime.  If you wish
238      to use the FHS behavior, answer Y here, otherwise answer N for the
239      classic /etc/adjtime path.
240
241      http://www.pathname.com/fhs/pub/fhs-2.3.html#VARLIBHWCLOCKSTATEDIRECTORYFORHWCLO
242
243config IPCRM
244    bool "ipcrm"
245    default n
246    select FEATURE_SUID
247    help
248      The ipcrm utility allows the removal of System V interprocess
249      communication (IPC) objects and the associated data structures
250      from the system.
251
252config IPCS
253    bool "ipcs"
254    default n
255    select FEATURE_SUID
256    help
257      The ipcs utility is used to provide information on the currently
258      allocated System V interprocess (IPC) objects in the system.
259
260config LOSETUP
261    bool "losetup"
262    default n
263    help
264      losetup is used to associate or detach a loop device with a regular
265      file or block device, and to query the status of a loop device.  This
266      version does not currently support enabling data encryption.
267
268config MDEV
269    bool "mdev"
270    default n
271    help
272      mdev is a mini-udev implementation for dynamically creating device
273      nodes in the /dev directory.
274
275      For more information, please see docs/mdev.txt
276
277config FEATURE_MDEV_CONF
278    bool "Support /etc/mdev.conf"
279    default n
280    depends on MDEV
281    help
282      Add support for the mdev config file to control ownership and
283      permissions of the device nodes.
284
285      For more information, please see docs/mdev.txt
286
287config FEATURE_MDEV_EXEC
288    bool "Support command execution at device addition/removal"
289    default n
290    depends on FEATURE_MDEV_CONF
291    help
292      This adds support for an optional field to /etc/mdev.conf for
293      executing commands when devices are created/removed.
294
295      For more information, please see docs/mdev.txt
296
297config FEATURE_MDEV_LOAD_FIRMWARE
298    bool "Support loading of firmwares"
299    default n
300    depends on MDEV
301    help
302      Some devices need to load firmware before they can be usable.
303
304      These devices will request userspace look up the files in
305      /lib/firmware/ and if it exists, send it to the kernel for
306      loading into the hardware.
307
308config MKSWAP
309    bool "mkswap"
310    default n
311    help
312      The mkswap utility is used to configure a file or disk partition as
313      Linux swap space.  This allows Linux to use the entire file or
314      partition as if it were additional RAM, which can greatly increase
315      the capability of low-memory machines.  This additional memory is
316      much slower than real RAM, but can be very helpful at preventing your
317      applications being killed by the Linux out of memory (OOM) killer.
318      Once you have created swap space using 'mkswap' you need to enable
319      the swap space using the 'swapon' utility.
320
321config FEATURE_MKSWAP_V0
322    bool "version 0 support"
323    default n
324    depends on MKSWAP
325#   depends on MKSWAP && DEPRECATED
326    help
327      Enable support for the old v0 style.
328      If your kernel is older than 2.1.117, then v0 support is the
329      only option.
330
331config MORE
332    bool "more"
333    default n
334    help
335      more is a simple utility which allows you to read text one screen
336      sized page at a time.  If you want to read text that is larger than
337      the screen, and you are using anything faster than a 300 baud modem,
338      you will probably find this utility very helpful.  If you don't have
339      any need to reading text files, you can leave this disabled.
340
341config FEATURE_USE_TERMIOS
342    bool "Use termios to manipulate the screen"
343    default y
344    depends on MORE
345    help
346      This option allows utilities such as 'more' and 'top' to determine
347      the size of the screen.  If you leave this disabled, your utilities
348      that display things on the screen will be especially primitive and
349      will be unable to determine the current screen size, and will be
350      unable to move the cursor.
351
352config MOUNT
353    bool "mount"
354    default n
355    help
356      All files and filesystems in Unix are arranged into one big directory
357      tree.  The 'mount' utility is used to graft a filesystem onto a
358      particular part of the tree.  A filesystem can either live on a block
359      device, or it can be accessible over the network, as is the case with
360      NFS filesystems.  Most people using BusyBox will also want to enable
361      the 'mount' utility.
362
363config FEATURE_MOUNT_NFS
364    bool "Support mounting NFS file systems"
365    default n
366    depends on MOUNT
367    select FEATURE_HAVE_RPC
368    select FEATURE_SYSLOG
369    help
370      Enable mounting of NFS file systems.
371
372config FEATURE_MOUNT_CIFS
373    bool "Support mounting CIFS/SMB file systems"
374    default n
375    depends on MOUNT
376    help
377      Enable support for samba mounts.
378
379config FEATURE_MOUNT_FLAGS
380    depends on MOUNT
381    bool "Support lots of -o flags in mount"
382    default y
383    help
384      Without this, mount only supports ro/rw/remount.  With this, it
385      supports nosuid, suid, dev, nodev, exec, noexec, sync, async, atime,
386      noatime, diratime, nodiratime, loud, bind, move, shared, slave,
387      private, unbindable, rshared, rslave, rprivate, and runbindable.
388
389config FEATURE_MOUNT_FSTAB
390    depends on MOUNT
391    bool "Support /etc/fstab and -a"
392    default y
393    help
394      Support mount all and looking for files in /etc/fstab.
395
396config PIVOT_ROOT
397    bool "pivot_root"
398    default n
399    help
400      The pivot_root utility swaps the mount points for the root filesystem
401      with some other mounted filesystem.  This allows you to do all sorts
402      of wild and crazy things with your Linux system and is far more
403      powerful than 'chroot'.
404
405      Note: This is for initrd in linux 2.4.  Under initramfs (introduced
406      in linux 2.6) use switch_root instead.
407
408config RDATE
409    bool "rdate"
410    default n
411    help
412      The rdate utility allows you to synchronize the date and time of your
413      system clock with the date and time of a remote networked system using
414      the RFC868 protocol, which is built into the inetd daemon on most
415      systems.
416
417config READPROFILE
418    bool "readprofile"
419    default n
420    help
421      This allows you to parse /proc/profile for basic profiling.
422
423config SETARCH
424    bool "setarch"
425    default n
426    help
427      The linux32 utility is used to create a 32bit environment for the
428      specified program (usually a shell).  It only makes sense to have
429      this util on a system that supports both 64bit and 32bit userland
430      (like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
431
432config SWAPONOFF
433    bool "swaponoff"
434    default n
435    help
436      This option enables both the 'swapon' and the 'swapoff' utilities.
437      Once you have created some swap space using 'mkswap', you also need
438      to enable your swap space with the 'swapon' utility.  The 'swapoff'
439      utility is used, typically at system shutdown, to disable any swap
440      space.  If you are not using any swap space, you can leave this
441      option disabled.
442
443config SWITCH_ROOT
444    bool "switch_root"
445    default n
446    help
447      The switch_root utility is used from initramfs to select a new
448      root device.  Under initramfs, you have to use this instead of
449      pivot_root.  (Stop reading here if you don't care why.)
450
451      Booting with initramfs extracts a gzipped cpio archive into rootfs
452      (which is a variant of ramfs/tmpfs).  Because rootfs can't be moved
453      or unmounted*, pivot_root will not work from initramfs.  Instead,
454      switch_root deletes everything out of rootfs (including itself),
455      does a mount --move that overmounts rootfs with the new root, and
456      then execs the specified init program.
457
458      * Because the Linux kernel uses rootfs internally as the starting
459      and ending point for searching through the kernel's doubly linked
460      list of active mount points.  That's why.
461
462config UMOUNT
463    bool "umount"
464    default n
465    help
466      When you want to remove a mounted filesystem from its current mount point,
467      for example when you are shutting down the system, the 'umount' utility is
468      the tool to use.  If you enabled the 'mount' utility, you almost certainly
469      also want to enable 'umount'.
470
471config FEATURE_UMOUNT_ALL
472    bool "umount -a option"
473    default n
474    depends on UMOUNT
475    help
476      Support -a option to unmount all currently mounted filesystems.
477
478comment "Common options for mount/umount"
479    depends on MOUNT || UMOUNT
480
481config FEATURE_MOUNT_LOOP
482    bool "Support loopback mounts"
483    default n
484    depends on MOUNT || UMOUNT
485    help
486      Enabling this feature allows automatic mounting of files (containing
487      filesystem images) via the linux kernel's loopback devices.  The mount
488      command will detect you are trying to mount a file instead of a block
489      device, and transparently associate the file with a loopback device.
490      The umount command will also free that loopback device.
491
492      You can still use the 'losetup' utility (to manually associate files
493      with loop devices) if you need to do something advanced, such as
494      specify an offset or cryptographic options to the loopback device.
495      (If you don't want umount to free the loop device, use "umount -D".)
496
497config FEATURE_MTAB_SUPPORT
498    bool "Support for the old /etc/mtab file"
499    default n
500    depends on MOUNT || UMOUNT
501    help
502      Historically, Unix systems kept track of the currently mounted
503      partitions in the file "/etc/mtab".  These days, the kernel exports
504      the list of currently mounted partitions in "/proc/mounts", rendering
505      the old mtab file obsolete.  (In modern systems, /etc/mtab should be
506      a symlink to /proc/mounts.)
507
508      The only reason to have mount maintain an /etc/mtab file itself is if
509      your stripped-down embedded system does not have a /proc directory.
510      If you must use this, keep in mind it's inherently brittle (for
511      example a mount under chroot won't update it), can't handle modern
512      features like separate per-process filesystem namespaces, requires
513      that your /etc directory be writeable, tends to get easily confused
514      by --bind or --move mounts, won't update if you rename a directory
515      that contains a mount point, and so on.  (In brief: avoid.)
516
517      About the only reason to use this is if you've removed /proc from
518      your kernel.
519
520endmenu
521
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