Comments on: Announcing vmfs-tools version 0.1.0 http://glandium.org/blog/?p=347 glandium.org Sun, 05 Sep 2010 12:27:46 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Tommy http://glandium.org/blog/?p=347&cpage=1#comment-13273 Tommy Thu, 18 Jun 2009 12:34:45 +0000 http://glandium.org/blog/?p=347#comment-13273 Hi glandium, It worked! Thank you for explaining it for me. For reference to others: nas:~# modprobe fuse nas:~# losetup -r /dev/loop0 /mnt/iscsi.img nas:~# kpartx -a -v /dev/loop0 nas:~# vmfs-fuse /dev/mapper/loop0p1 /mnt/iscsi/ Hi glandium,

It worked! Thank you for explaining it for me.

For reference to others:
nas:~# modprobe fuse
nas:~# losetup -r /dev/loop0 /mnt/iscsi.img
nas:~# kpartx -a -v /dev/loop0
nas:~# vmfs-fuse /dev/mapper/loop0p1 /mnt/iscsi/

]]> By: glandium http://glandium.org/blog/?p=347&cpage=1#comment-13254 glandium Wed, 17 Jun 2009 15:23:58 +0000 http://glandium.org/blog/?p=347#comment-13254 Tommy, if you're using a 2.6.x linux kernel, you can setup a loopback device with losetup and then use kpartx (from multipath-tools) to get devices mapping the partitions in the loopback device. Tommy, if you’re using a 2.6.x linux kernel, you can setup a loopback device with losetup and then use kpartx (from multipath-tools) to get devices mapping the partitions in the loopback device.

]]> By: chris http://glandium.org/blog/?p=347&cpage=1#comment-13251 chris Wed, 17 Jun 2009 12:14:12 +0000 http://glandium.org/blog/?p=347#comment-13251 Hi Tommy, Try with offset=65536 Hi Tommy,

Try with offset=65536

]]> By: Tommy http://glandium.org/blog/?p=347&cpage=1#comment-13246 Tommy Wed, 17 Jun 2009 07:42:39 +0000 http://glandium.org/blog/?p=347#comment-13246 Can anyone tell me what the offset should be on my loopback device? I've created a 512MB file with dd, connected it via iSCSI to my ESXi server, created the VMFS and put up some test files. If i try directly on the file: nas:~# vmfs-fuse /mnt/iscsi.img VMFS VolInfo: invalid magic number 0x00000000 VMFS: Unable to read volume information Unable to open device/file "/mnt/iscsi.img". This obviously doesn't work. Then I tried to create a loopback device, but i don't know the offset. losetup -o ???? -r /dev/loop1 /mnt/iscsi.img Can anyone help me here? Thank you in advance. :) /Tommy Can anyone tell me what the offset should be on my loopback device?

I’ve created a 512MB file with dd, connected it via iSCSI to my ESXi server, created the VMFS and put up some test files.

If i try directly on the file:
nas:~# vmfs-fuse /mnt/iscsi.img
VMFS VolInfo: invalid magic number 0×00000000
VMFS: Unable to read volume information
Unable to open device/file “/mnt/iscsi.img”.

This obviously doesn’t work. Then I tried to create a loopback device, but i don’t know the offset.

losetup -o ???? -r /dev/loop1 /mnt/iscsi.img

Can anyone help me here?

Thank you in advance. :)
/Tommy

]]> By: Brien http://glandium.org/blog/?p=347&cpage=1#comment-12938 Brien Wed, 03 Jun 2009 22:57:37 +0000 http://glandium.org/blog/?p=347#comment-12938 This would be a very nice replacement for VCB dumping and then doing the loopback offset mount hack. I guess getting to the VMFS is the first step, and then seeing if we can mount the snapshot file to perform the backup. VMware is going to love that potentially naughty systems can now access the VMFS :-) This would be a very nice replacement for VCB dumping and then doing the loopback offset mount hack. I guess getting to the VMFS is the first step, and then seeing if we can mount the snapshot file to perform the backup. VMware is going to love that potentially naughty systems can now access the VMFS :-)

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