I wanted to resize my LVM, followed some tutorial on the net and the system totally crashed (I got some boot error with UUID not found). I ran a LiveCD and tried to at least recover some files but I can't mount the drive. I did pvcreate with the missing UUID on /dev/sda1. When in most tutorials I should dovgchange -ayand then mount I get:device-mapper: resume ioctl on  failed: Invalid argument. dmseg prints something like this:device-mapper: table: 252:0: sda1 too small for target: start=2048, len=15499264, dev_size=497664Mount obviously doesn't work. I'm totally stuck there and I damn need to recover these files. Any ideas?Edit:I need a single folder, any workaround way to get it out (might do on Windows Host, it's a VDI disk) would be okay.
Cannot mount LVMm: resume ioctl on failed
partition;lvm;data recovery;device mapper
After trying hundreds of different command line combinations I found a tutorial (originally targetting other problem) with gparted livecd. I booted it, then in terminal:testdiskChose the first option, then chose:writeIt allowed me to mount the disk and recover the folder I needed.