On Mon, 2022-12-12 at 04:53 -0800, ToddAndMargo via users wrote: > On 11/9/22 08:28, ToddAndMargo wrote: > > Any downside to ths tool? > > > > https://libguestfs.org/virt-sparsify.1.html > > > > Yes, BIG, BIG downside! > > dump/restore can not restore the fiel correctly. > > dump restores a qcows drive as a blank drive
Restor (not dump) will restore sparse files as expanded files, i.e. with the uncopied sections filled in with nulls. That is entirely normal (cp and most other utilities will do the same thing unless told otherwise). The resulting file should look exactly the same as the original, except for occupying more physical space. However virt-sparsify presumably also messes with the guest filesystem metadata (inode, FAT, whatever) when doing this, so that the guest system still sees a functioning filesystem. If so, I wouldn't expect dump/restor to recognise that, so maybe that's where the problem lies. poc _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
