[TriLUG] Using Loop Device
hunteke at earlham.edu
Mon Jan 28 15:27:16 EST 2008
At 2:08p -0500 on 28 Jan 2008, Alan Porter wrote:
> Disk image.usb: 0 MB, 0 bytes
> 64 heads, 32 sectors/track, 0 cylinders, total 0 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Device Boot Start End Blocks Id System
> imagefile.img1 * 32 1079295 539632 83 Linux
> Make a note of the sector size ("Units") and the starting sector ("Start").
> [aporter at sti]$ mount -t ext3 -o loop,offset=$((32*512)) imagefile.img /mnt/image
Och! Thank you! That was the clearest explanation I've seen of this.
I keep having to Google when I do this (only rarely), but now I think I
finally actually understand where the numbers (32 and 512 here) come from.
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