I never questioned that.
As the other poster already said, it's time to role the restore from the backup.
Just an aside,
if you (the thread issuer) like me have your filesystems on LVM volumes (yes I do have a separate lv_usr)
there is a neat feature that can be used for rolling back quickly from an unfortunate experiment like yours without even rolling a regular backup.
Before I do such dubious recursive substitutions I just would create a snapshot volume of the affected LV like
Above I only created a snapshot of 88 MB of the 5 GB /usr volume because I hadn't any more free PEs in my vgfc.
Normally, one would adapt this to the size of the snapped of LV and the anticipated amount of changes during the period one would possibly require the snapshot.
As a rule of thumb 10% suffice, but this depends on the changes in the filesystem.
Since /usr is pretty static (and even could be mounted ro often) there won't be many changes.
From the lvs command above you can watch the filling up of the snapshot with the changes.
Once the snap_percent approaches 100% your snapshot is useless and can't be any longer used for recoveries.
Now you can safely run your command.
If something goes wrong, you simply mount the snapshot volume ro somewhere and run your restore.
Once you no longer need your snapshot simply lvremove it.
I have windows Xp installed, and decided to install Solaris Sun Unix 10. The hard disk was previousely partitioned into 5 partition. C: = Win98 D = WinXP and e,f,g,h are applications and so on. When istalling Sun Unix, will all the drives be removed, or I will specify where to install it. Thanks... (5 Replies)
hello Everyone.
I'm having the following problem:
I have number of installation in the directory. each installation consists of executable file and directory. when I do the new installation I move old one to File_name-Time_stamp. this is done for executable and for directory. Everything is done... (6 Replies)
Hello,
I was reading the manual on rm and it states that when you use 'rm' the files are usual recoverable, how is this done?
Does it assume that a backup system is in place?
Cheers
Jack (4 Replies)
Hello all!
I ran rm -rf on a wrong directory, noticed it and hit ctrl-c.
Is there any way on a debian machine to tell what actually got deleted?
As there were many dirs and files in this directory that I don't care for, I'd like to see if anything important was removed.
Or do you know in... (4 Replies)
Hi,
I have a text file with 2000 rows and 2000 columns (number of columns might vary from row to row) and "comma" is the delimiter.
In every row, there maybe few duplicates and we need to remove those duplicates and "shift left" the consequent values.
ex:
111 222 111 555
444 999 666... (6 Replies)
Hi Guys,
I am using SunOS 5.9 running Oracle Databases on it...
I have log files that I suspect that some lines within the logs where removed.
How do I tell if indeed some lines within a particular file where removed and by whom?
Thanks in advance (2 Replies)
Hi Team,
I have deleted a file accidentally by using rm command. I am not the root(admin) user. Can you please let me know how to get that .tex file? (2 Replies)
Discussion started by: darling
2 Replies
LEARN ABOUT DEBIAN
lvdisplay
LVDISPLAY(8) System Manager's Manual LVDISPLAY(8)NAME
lvdisplay - display attributes of a logical volume
SYNOPSIS
lvdisplay [-a|--all] [-c|--colon] [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--maps] [--nosuffix] [-P|--partial] [--units hHbB-
sSkKmMgGtTpPeE] [-v|--verbose] [--version] [LogicalVolumePath [LogicalVolumePath...]]
lvdisplay --columns | -C [--aligned] [-a|--all] [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--noheadings] [--nosuffix]
[-o|--options [+]Field[,Field]] [-O|--sort [+|-]Key1[,[+|-]Key2[,...]]] [-P|--partial] [--segments] [--separator Separator] [--unbuffered]
[--units hHbBsSkKmMgGtTpPeE] [-v|--verbose] [--version] [LogicalVolumePath [LogicalVolumePath...]]
DESCRIPTION
lvdisplay allows you to see the attributes of a logical volume like size, read/write status, snapshot information etc.
lvs (8) is an alternative that provides the same information in the style of ps (1). lvs is recommended over lvdisplay.
OPTIONS
See lvm for common options and lvs for options given with --columns.
--all Include information in the output about internal Logical Volumes that are components of normally-accessible Logical Volumes, such as
mirrors, but which are not independently accessible (e.g. not mountable). For example, after creating a mirror using 'lvcreate -m1
--mirrorlog disk', this option will reveal three internal Logical Volumes, with suffixes mimage_0, mimage_1, and mlog.
-c, --colon
Generate colon separated output for easier parsing in scripts or programs. N.B. lvs (8) provides considerably more control over the
output.
The values are:
* logical volume name
* volume group name
* logical volume access
* logical volume status
* internal logical volume number
* open count of logical volume
* logical volume size in sectors
* current logical extents associated to logical volume
* allocated logical extents of logical volume
* allocation policy of logical volume
* read ahead sectors of logical volume
* major device number of logical volume
* minor device number of logical volume
-m, --maps
Display the mapping of logical extents to physical volumes and physical extents. To map physical extents to logical extents use
pvs --segments -o+lv_name,seg_start_pe,segtype.
--columns | -C
Display output in columns, the equivalent of lvs. Options listed are the same as options given in lvs (8).
Examples
"lvdisplay -v /dev/vg00/lvol2" shows attributes of that logical volume. If snapshot logical volumes have been created for this original
logical volume, this command shows a list of all snapshot logical volumes and their status (active or inactive) as well.
"lvdisplay /dev/vg00/snapshot" shows the attributes of this snapshot logical volume and also which original logical volume it is associated
with.
SEE ALSO lvm(8), lvcreate(8), lvscan(8), pvs(8)Sistina Software UK LVM TOOLS 2.02.95(2) (2012-03-06) LVDISPLAY(8)
09-02-2008
