On Wed, Mar 24, 2021 at 05:17:57PM +0000, David Pottage wrote: > On 2021-03-24 12:37, Reco wrote: > > Hi. > > > > On Wed, Mar 24, 2021 at 10:26:49AM +0000, David Pottage wrote: > > > Is there a way to assemble the VG and mount those ext4 filesystems in > > > such a way that read attempts from the missing PV will return zeros, > > > but the rest of the filesystem will work? > > > > Try this: > > > > vgchange --activationmode partial -ay > > lvs > > # immediately dump logical volume in question somewhere with cat/dd > > cat /dev/<vg>/<lv> > lv.img > > vgchange -an <vg> > > # run fsck -f on a copy of logical volume > > fsck -f lv.img > > # try mounting it > > mount -o loop lv.img /<mountpoint> > > > Thanks, that partly worked. It was an older version of LVM2, so I had to > modify the command line syntax to "vgchange --partial -ay <VG>" > > I was then able to mount the damaged volumes and get back nearly half of the > lost files. I had a separate record of SHA1 checksums of all the lost files > and > all the recovered files have been checked and are undamaged. > > Thanks for your help.
You're welcome. Reco
