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nexedi
linux
Commits
957ac616
Commit
957ac616
authored
Jan 06, 2004
by
Matthew Wilcox
Committed by
David S. Miller
Jan 06, 2004
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[SPARC32]: Use drivers/block/Kconfig
parent
f74381cd
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arch/sparc/Kconfig
arch/sparc/Kconfig
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arch/sparc/Kconfig
View file @
957ac616
...
@@ -300,138 +300,7 @@ if !SUN4
...
@@ -300,138 +300,7 @@ if !SUN4
source "drivers/sbus/char/Kconfig"
source "drivers/sbus/char/Kconfig"
endif
endif
source "drivers/block/Kconfig"
menu "Block devices"
config BLK_DEV_FD
bool "Normal floppy disk support"
---help---
If you want to use the floppy disk drive(s) of your PC under Linux,
say Y. Information about this driver, especially important for IBM
Thinkpad users, is contained in <file:Documentation/floppy.txt>.
That file also contains the location of the Floppy driver FAQ as
well as location of the fdutils package used to configure additional
parameters of the driver at run time.
To compile this driver as a module, choose M here: the
module will be called floppy.
config BLK_DEV_LOOP
tristate "Loopback device support"
---help---
Saying Y here will allow you to use a regular file as a block
device; you can then create a file system on that block device and
mount it just as you would mount other block devices such as hard
drive partitions, CD-ROM drives or floppy drives. The loop devices
are block special device files with major number 7 and typically
called /dev/loop0, /dev/loop1 etc.
This is useful if you want to check an ISO 9660 file system before
burning the CD, or if you want to use floppy images without first
writing them to floppy. Furthermore, some Linux distributions avoid
the need for a dedicated Linux partition by keeping their complete
root file system inside a DOS FAT file using this loop device
driver.
The loop device driver can also be used to "hide" a file system in a
disk partition, floppy, or regular file, either using encryption
(scrambling the data) or steganography (hiding the data in the low
bits of, say, a sound file). This is also safe if the file resides
on a remote file server. If you want to do this, you will first have
to acquire and install a kernel patch from
<ftp://ftp.kerneli.org/pub/kerneli/>, and then you need to
say Y to this option.
Note that alternative ways to use encrypted file systems are
provided by the cfs package, which can be gotten from
<ftp://ftp.kerneli.org/pub/kerneli/net-source/>, and the newer tcfs
package, available at <http://tcfs.dia.unisa.it/>. You do not need
to say Y here if you want to use one of these. However, using cfs
requires saying Y to "NFS file system support" below while using
tcfs requires applying a kernel patch. An alternative steganography
solution is provided by StegFS, also available from
<ftp://ftp.kerneli.org/pub/kerneli/net-source/>.
To use the loop device, you need the losetup utility and a recent
version of the mount program, both contained in the util-linux
package. The location and current version number of util-linux is
contained in the file <file:Documentation/Changes>.
Note that this loop device has nothing to do with the loopback
device used for network connections from the machine to itself.
To compile this driver as a module, choose M here: the
module will be called loop.
Most users will answer N here.
config BLK_DEV_NBD
tristate "Network block device support"
depends on NET
---help---
Saying Y here will allow your computer to be a client for network
block devices, i.e. it will be able to use block devices exported by
servers (mount file systems on them etc.). Communication between
client and server works over TCP/IP networking, but to the client
program this is hidden: it looks like a regular local file access to
a block device special file such as /dev/nd0.
Network block devices also allows you to run a block-device in
userland (making server and client physically the same computer,
communicating using the loopback network device).
Read <file:Documentation/nbd.txt> for more information, especially
about where to find the server code, which runs in user space and
does not need special kernel support.
Note that this has nothing to do with the network file systems NFS
or Coda; you can say N here even if you intend to use NFS or Coda.
To compile this driver as a module, choose M here: the
module will be called nbd.
If unsure, say N.
source "drivers/md/Kconfig"
config BLK_DEV_RAM
tristate "RAM disk support"
---help---
Saying Y here will allow you to use a portion of your RAM memory as
a block device, so that you can make file systems on it, read and
write to it and do all the other things that you can do with normal
block devices (such as hard drives). It is usually used to load and
store a copy of a minimal root file system off of a floppy into RAM
during the initial install of Linux.
Note that the kernel command line option "ramdisk=XX" is now
obsolete. For details, read <file:Documentation/ramdisk.txt>.
To compile this driver as a module, choose M here: the
module will be called rd.
Most normal users won't need the RAM disk functionality, and can
thus say N here.
config BLK_DEV_RAM_SIZE
int "Default RAM disk size"
depends on BLK_DEV_RAM
default "4096"
help
The default value is 4096. Only change this if you know what are
you doing. If you are using IBM S/390, then set this to 8192.
config BLK_DEV_INITRD
bool "Initial RAM disk (initrd) support"
depends on BLK_DEV_RAM=y
help
The initial RAM disk is a RAM disk that is loaded by the boot loader
(loadlin or lilo) and that is mounted as root before the normal boot
procedure. It is typically used to load modules needed to mount the
"real" root file system, etc. See <file:Documentation/initrd.txt>
for details.
endmenu
# Don't frighten a common SBus user
# Don't frighten a common SBus user
if PCI
if PCI
...
@@ -446,6 +315,8 @@ source "drivers/scsi/Kconfig"
...
@@ -446,6 +315,8 @@ source "drivers/scsi/Kconfig"
source "drivers/fc4/Kconfig"
source "drivers/fc4/Kconfig"
source "drivers/md/Kconfig"
source "net/Kconfig"
source "net/Kconfig"
# This one must be before the filesystem configs. -DaveM
# This one must be before the filesystem configs. -DaveM
...
...
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