Re: How to use LVM on a file? (as opposed to on a block device)
On 3/3/2010 1:50 PM, Alexander Samad wrote: On Thu, Mar 4, 2010 at 6:29 AM, Clive McBarton wrote: I have a file which is a dump of a disk partition. It has LVM on it and a couple of LVs in the LVM, each containing a filesystem. How do I access them? The lvm tools like lvdisplay, vgdisplay, lvs, lvscan, lvdiskscan expect block devices and do not have the option of using a file instead of /dev/something. I'd like to use the LVM on the file without writing it out as a real disk partion. How do I do that? I would guess you could look in /etc/lvm/lvm.conf - it defines where it looks for pv If your kernel is recent enough, look to the device mapper. A file can be mounted. We do it regularly with ISOs. Loopback is harder with LVM involved, but it's the same principle. The usual application, these days, is for encryption. Mark Allums -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4b8eccd5.3040...@allums.com
Re: How to use LVM on a file? (as opposed to on a block device)
On 03/03/10 14:59, Clive McBarton wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I have a file which is a dump of a disk partition. It has LVM on it and a couple of LVs in the LVM, each containing a filesystem. How do I access them? The lvm tools like lvdisplay, vgdisplay, lvs, lvscan, lvdiskscan expect block devices and do not have the option of using a file instead of /dev/something. I'd like to use the LVM on the file without writing it out as a real disk partion. How do I do that? Here you are... http://forums.fedoraforum.org/showthread.php?t=211093 -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkuOuH0ACgkQ+VSRxYk4408yOACg6Pu2Md50e0BH77aB04oiGyuC PEwAoOzQZs/4x9Z2rRlUVrDSifGLn0fP =fzWE -END PGP SIGNATURE- -- - "You don't know where your shadow will fall", Somebody.- - Ing. Olaf Reitmaier Veracierta - Personal Web Page -- http://olafrv.com -- i...@olafrv.com - -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4b8ec2a1.1070...@gmail.com
Re: How to use LVM on a file? (as opposed to on a block device)
On Wednesday 03 March 2010 13:29:01 Clive McBarton wrote: > The lvm tools like lvdisplay, vgdisplay, lvs, lvscan, > lvdiskscan expect block devices and do not have the option of using a > file instead of /dev/something. I'd like to use the LVM on the file > without writing it out as a real disk partion. How do I do that? losetup allows you do treat any file as a block device. /etc/lvm/lvm.conf may need to be modified to pay attention to loop devices (the type created by losetup). -- Boyd Stephen Smith Jr. ,= ,-_-. =. b...@iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/\_/ signature.asc Description: This is a digitally signed message part.
Re: How to use LVM on a file? (as opposed to on a block device)
On Thu, Mar 4, 2010 at 6:29 AM, Clive McBarton wrote: > > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > I have a file which is a dump of a disk partition. It has LVM on it and > a couple of LVs in the LVM, each containing a filesystem. How do I > access them? The lvm tools like lvdisplay, vgdisplay, lvs, lvscan, > lvdiskscan expect block devices and do not have the option of using a > file instead of /dev/something. I'd like to use the LVM on the file > without writing it out as a real disk partion. How do I do that? I would guess you could look in /etc/lvm/lvm.conf - it defines where it looks for pv > > -BEGIN PGP SIGNATURE- > Version: GnuPG v1.4.9 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iEYEARECAAYFAkuOuH0ACgkQ+VSRxYk4408yOACg6Pu2Md50e0BH77aB04oiGyuC > PEwAoOzQZs/4x9Z2rRlUVrDSifGLn0fP > =fzWE > -END PGP SIGNATURE- > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org > Archive: http://lists.debian.org/4b8eb87d.1050...@web.de > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/836a6dcf1003031150h448c060bi84c8644ea837c...@mail.gmail.com
How to use LVM on a file? (as opposed to on a block device)
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I have a file which is a dump of a disk partition. It has LVM on it and a couple of LVs in the LVM, each containing a filesystem. How do I access them? The lvm tools like lvdisplay, vgdisplay, lvs, lvscan, lvdiskscan expect block devices and do not have the option of using a file instead of /dev/something. I'd like to use the LVM on the file without writing it out as a real disk partion. How do I do that? -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkuOuH0ACgkQ+VSRxYk4408yOACg6Pu2Md50e0BH77aB04oiGyuC PEwAoOzQZs/4x9Z2rRlUVrDSifGLn0fP =fzWE -END PGP SIGNATURE- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4b8eb87d.1050...@web.de
