LVM, by default, ignores any "devices" outside of /dev, or anything with a filesystem on it. So the recommended (by me) way would be to run
where x is the number reported by losetup. Or, if there's no other data on it, use the whole of /dev/sdb1 for LVM.
Hi everybody,
Is it possible to create a Shared Filesystem on Network to be accessed from 2 Systems?
Both systems are AIX but with different versions. One of these systems is AIX 4.3 & the other is AIX 5.2.
Thanks in advanced (8 Replies)
Hi all,
I would like to ask on how to create 2MB partition on a Compact Flash card. It supposed to be of FAT12 type, and the CF capacity is 4GB. I try to do the partitioning and specify the size as 2MB but the partition editor automatically resize it to 8MB. I know that this is possible and the... (4 Replies)
I'm new to linux and need information on how do I create a filesytem on a dedicated on LUN for RHEL 4 and 5? I want the filesystem to be a ext3
---------- Post updated at 10:00 AM ---------- Previous update was at 08:56 AM ----------
Found the answer. This thread can be closed. (1 Reply)
Hi,
I have a LUN presented to a Linux system and would like to ask if someone can advise if the logical volume /dev/mapper/VGOra-LVOra 12G 11G 659M 95% /usr/app/oracle can be extended. Is there any free space to allocate.... The LUN (25G) has been configured as follows:
LUN - ROOT...... (4 Replies)
Hi,
I have a server booted into sysresccd (mini-linux OS) with 1 40 GB disk attached
I am trying to create a volume group and restore another server into the new one
However, when I try to create a partition for /boot it seems that my VG in LVM is not recognized anymore
These are the... (2 Replies)
hi,
In my production server having
Enterprise Linux Enterprise Linux Server release 5.5 (Carthage)
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
we have a filesystem of 197 gb (Type ext 3)
Hadisk in which this filesystem reside is sdb is of 217 gb. (NO LVM)
Now I want to... (6 Replies)
Hello Team,
In a application filesystem, there is a process keep creating the log files. Due to that the filesystem keep getting full. Please let me know how to identify the process which is keep writing in the filesystem.
fuser -u <FS> will show only the user who using the filesystem.... (3 Replies)
Hi all
I have a system running:
uname -o
GNU/Linux
that has already some file systems created:
df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_outsystemdb-lv_root
50G 2.7G 45G 6% /
tmpfs 28G 72K 28G 1%... (5 Replies)
Hi,
I have a task of creating a UFS filesystem in an LDOM. It is located in a hypervisor (CDOM).
The storage has been provisioned to the CDOM. How do I make it reflect to the LDOM, and then from there configure/set up the filesystem in the LDOM?
Please help. (1 Reply)
Discussion started by: anaigini45
1 Replies
LEARN ABOUT CENTOS
losetup
LOSETUP(8) System Administration LOSETUP(8)NAME
losetup - set up and control loop devices
SYNOPSIS
Get info:
losetup loopdev
losetup -l [-a]
losetup -j file [-o offset]
Delete loop:
losetup -d loopdev...
Delete all used loop devices:
losetup -D
Print name of first unused loop device:
losetup -f
Setup loop device:
losetup [-o offset] [--sizelimit size]
[-p pfd] [-rP] {-f[--show]|loopdev} file
Resize loop device:
losetup -c loopdev
DESCRIPTION
losetup is used to associate loop devices with regular files or block devices, to detach loop devices and to query the status of a loop
device. If only the loopdev argument is given, the status of the corresponding loop device is shown.
Note that the old output format (e.g. losetup -a) with comma delimited strings is deprecated in favour of the --list output format (e.g.
losetup -a -l).
OPTIONS
+The size and offset arguments may be followed by the multiplicative +suffixes KiB=1024, MiB=1024*1024, and so on for GiB, TiB, PiB, EiB,
ZiB and YiB +(the "iB" is optional, e.g. "K" has the same meaning as "KiB") or the suffixes +KB=1000, MB=1000*1000, and so on for GB, TB,
PB, EB, ZB and YB.
-a, --all
show status of all loop devices. Note that not all information are accessible for non-root users. See also --list. The old output
format (as printed without --list) is deprecated.
-c, --set-capacity loopdev
force loop driver to reread size of the file associated with the specified loop device
-d, --detach loopdev...
detach the file or device associated with the specified loop device(s)
-D, --detach-all
detach all associated loop devices
-f, --find
find the first unused loop device. If a file argument is present, use this device. Otherwise, print its name
-h, --help
print help
-j, --associated file
show status of all loop devices associated with given file
-l, --list
if a loop device or the -a option is specified, print default columns for either the specified loop device or all loop devices,
default is to print info about all devices.
-o, --offset offset
the data start is moved offset bytes into the specified file or device
-O, --output columns
specify which columns are to be printed for the --list output
--sizelimit size
the data end is set to no more than size bytes after the data start
-P, --partscan
force kernel to scan partition table on newly created loop device
-r, --read-only
setup read-only loop device
--show print device name if the -f option and a file argument are present.
-v, --verbose
verbose mode
ENCRYPTION
Cryptoloop is no longer supported in favor of dm-crypt. For more details see cryptsetup(8).
RETURN VALUE
losetup returns 0 on success, nonzero on failure. When losetup displays the status of a loop device, it returns 1 if the device is not con-
figured and 2 if an error occurred which prevented from determining the status of the device.
FILES
/dev/loop[0..N]
loop block devices
/dev/loop-cotrol
loop control device
EXAMPLE
The following commands can be used as an example of using the loop device.
# dd if=/dev/zero of=~/file.img bs=1MiB count=10
# losetup --find --show ~/file.img
/dev/loop0
# mkfs -t ext2 /dev/loop0
# mount /dev/loop0 /mnt
...
# umount /dev/loop0
# losetup --detach /dev/loop0
AUTHORS
Karel Zak <kzak@redhat.com>, based on original version from Theodore Ts'o <tytso@athena.mit.edu>
AVAILABILITY
The losetup command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2003 LOSETUP(8)