Comments for /dev/rant

Comment on Mount LVM-based volumes from loopback full disk images by Mount VMWare disk partitions

Mount VMWare disk partitions — Sun, 22 Aug 2010 06:08:15 +0000

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Comment on Mount LVM-based volumes from loopback full disk images by Best place to post how-to's ?

Best place to post how-to's ? — Sun, 22 Aug 2010 05:58:08 +0000

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Comment on More pxelinux tricks: GParted LivePXE and PXE-booting DOS CDs by speedo » Blog Archive » Install Gentoo over PXE

speedo » Blog Archive » Install Gentoo over PXE — Fri, 02 Jul 2010 11:49:10 +0000

[...] BETTER SEE THAT ONE other way and just do: # Make a temporary directory and unpack gentoo.igz: mkdir tmp; cd tmp; zcat [...]

Comment on Mount LVM-based volumes from loopback full disk images by Gerry

Gerry — Mon, 14 Jun 2010 18:07:35 +0000

Followup:

On some systems instead of:
mount ${LOOP}p1 /tmp/part1

You may need to do:
mount ${LOOP/\/dev/\/dev\/mapper}p1 /tmp/part1

Comment on Mount LVM-based volumes from loopback full disk images by Gerry

Gerry — Mon, 14 Jun 2010 17:13:15 +0000

I do this using kpartx.
losetup $LOOP IMAGE MOUNT
kpartx -av $LOOP
fdisk -lu $LOOP
mount ${LOOP}p1 /tmp/part1
ls /tmp/part1 # see files

LVM?
lvdisplay -c
(find /dev/mapper equivalent)
mount /dev/mapper/$LV /tmp/lv
ls /tmp/lv # see files

Comment on SSH tips and tricks by davidhi

davidhi — Sat, 12 Jun 2010 23:45:47 +0000

Just to comment on my own entry — the one-liner for adding a key to a remote machine’s ~/.ssh/authorized_keys file (in the “Distributing the key” section), can also be done with the script “ssh-copy-id.”

Comment on Mount LVM-based volumes from loopback full disk images by davidhi

davidhi — Sat, 12 Jun 2010 23:38:54 +0000

Thanks for the note Rich. libguestfs looks very useful, and it certainly fits an emerging need for better disk image tools. This blog entry was posted quite a while ago, and at the time I wasn’t aware of libguestfs. A great thing about blogs with open comments is that you can keep abreast of current “best practices” for tasks like this if someone stumbles upon the entry in the future and leaves a comment. So thanks for that!

Comment on Mount LVM-based volumes from loopback full disk images by Rich

Rich — Sat, 12 Jun 2010 15:38:11 +0000

This blog entry came up on the Fedora users mailing list today. I'd like to point out that this whole process can be done more simply and without root by using libguestfs and guestfish.

Comment on Mount LVM-based volumes from loopback full disk images by Andrey

Andrey — Fri, 11 Jun 2010 06:11:41 +0000

Thank you!
The way described works perfectly.

I’ll never-never use LVM on my development host.

Comment on Mount LVM-based volumes from loopback full disk images by davidhi

davidhi — Sat, 05 Jun 2010 20:48:56 +0000

Depending on what your situation is, you could do the following:

* Back up your lvm.conf
* Edit the lvm.conf default filter to only scan a subset of block devices (/dev/loop* only, for example) for volumes (or temporarily reject the ones you want to ignore)
* Use vgrename to change the name of one of them
* Restore your original lvm.conf

You might have to do this from a rescue disk if the volume group with precedence can’t be stopped and contains a critical partition for the running system.