On Jo, 30 sep 21, 21:51:20, Reco wrote: > > On Thu, Sep 30, 2021 at 04:26:18PM +0100, Myron wrote: > > > Does it mean that if I remove the partition and then re-create the > > partition from the same starting block as the old partition, that the data > > on the MicroSD card will not actually be erased, but will be encapsulated > > by the new smaller partition? > > Haha. You won't be able to do that, Red Hat took care of it back in 3.2 > kernel days. You cannot cannot change a partition layout on a block > device which has any filesystem mounted (or swap is used), the kernel > won't permit you to do that. Red Hat deserved and deserves whatever > things IBM is doing to them now, let's leave it at this. > Moreover, even if was possible, you'd need to shrink the filesystem > first, or you will damage it. And shrinking a mounted ext4 is impossible. [citation needed] > > Does that make any sense? > > Back in good old days of 2.6 kernel that was the way of doing it, more > or less. But no more. > > > > I know. It's not advisable to resize a live root partition. > > It's plain and downright impossible, unless you're using LVM. And even > then it's filesystem-specific, which excludes ext4 for instance. Sorry > to bring you the bad news.
https://linuxconfig.org/how-to-resize-ext4-root-partition-live-without-umount Disclaimer: I did not test the procedure myself. Kind regards, Andrei -- http://wiki.debian.org/FAQsFromDebianUser
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