svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
lofi(4d)
lofi(4D) Device Drivers & /dev files lofi(4D)
NAME
lofi - Loopback file driver
DESCRIPTION
The lofi file driver exports a file as a block device, enabling system
utilities such as fstyp(8), fsck(8) and mount(8) to operate on underly‐
ing file system images (including CD-ROM images) contained on the block
device. Reads and writes to the block device are translated to reads
and writes on the exported file. See lofiadm(8) for examples.
Either a labeled or an unlabeled device can be created while exporting
a file as a block device. As compared to an unlabeled device, it is
easier to access partitions and slices on the disk image file with la‐
beled device.
For an unlabeled device, block device entries are contained in
/dev/lofi The /dev/rlofi file contains the character (or raw) device
assigned through lofiadm(8).
For a labeled device, block device entries are contained in /dev/dsk
while raw device entries are under /dev/rdsk. As with normal disks, en‐
tries are named in cXtYd0 form by lofiadm(8).
When created, these device entries are owned by root, in group sys, and
have permissions of 0600. Ownership, group, and permission settings can
be altered, however there may be ramifications. See lofiadm(8) for more
information.
lofi devices can be compressed. See lofiadm(8) for more information.
Files exported through lofi can also be encrypted. See lofiadm(8) for
details on how to specify encryption keys.
Normally, one file can be exported as only one block device. However, a
removable block device can be created so that one file can be exported
through multiple block devices at the same time in a read-only way.
Also, one removable device can be used to export different file at dif‐
ferent time. See lofiadm(8) for details on how to create removable de‐
vices.
FILES
/dev/lofictl
Master control device.
/dev/lofi/n
Block device of an unlabeled lofi device.
/dev/rlofi/n
Character device of an unlabeled lofi device.
/dev/dsk/cXtYd0*
Block device of a labeled lofi device.
/dev/rdsk/cXtYd0*
Character device of a labeled lofi device.
/kernel/drv/sparcv9/lofi
64-bit driver (SPARC).
/kernel/drv/amd64/lofi
64-bit driver (x86).
/kernel/drv/lofi.conf
Driver configuration file. (Do not alter).
ATTRIBUTES
See attributes(7) for a description of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ ArchitectureSPARC, x86 _ Availability system/core-os,
system/kernel _ Interface StabilityCommitted
SEE ALSO
lofs(4FS), attributes(7), fsck(8), fstyp(8), lofiadm(8), mount(8),
newfs(8)
NOTES
Just as you would not directly access a disk device that has mounted
file systems, you should not access a file associated with a block de‐
vice except through the lofi file driver.
For compatibility purposes, a raw device is also exported with the
block device. (For example, newfs(8)).
Oracle Solaris 11.4 9 Oct 2012 lofi(4D)