Re: [CentOS] VM disk question

Jerry Geis wrote:

I have VMPlayer 12 running a CentOS 7 disk. Works fine.

However I wish to change the disk from UUID booting (fstab) to the old style LABEL. (so I can export it and use on another machine).

<snip>

however when I run: e2label /dev/sda1 / e2label: Bad magic number in super-block while trying to open /dev/sda1 Couldn't find valid filesystem superblock.

<snip> And the answer is that the mount handling is broken in 7, and I've filed a bug over a year ago. The workaround solution is to *not* put slashes in the LABEL; instead, do

e2label /dev/sda1 root

or, another filesystem, to use what we use, e2label /dev/sdb1 export1 which we mount as /export/1. Alternatively, mkfs.xfs -L /dev/sdb1 export1

mark