Brad Rogers wrote:
> Hello All,
>
> I'm curious as to why, when I change the filesystem type to ext3 on a
> USB hard drive, I cannot write to the drive from normal user space,
> only root access is allowed.
>
> Changing the filesystem back to VFAT allows the writes to proceed
> without problem. A bit of investigating shows that as ext3 the drive
> gets mounted root/root, but as VFAT it gets mounted as
> <username>/root. So, that explains the read only status, but it does
> beg the question; Why the difference in UID/GID when changing
> filesystems?
With ext3 on the USB HD you end up having to treat it just like a
“static HD”, i.e. you have to make sure that the permissions on the
directory allows your user to write. In short, use chmod or chown :-)
VFAT doesn't have permissions in the Unix sense (in any sense really).
instead the permissions are set disk-wide at mount time. You can
influence that through 'mount' options; -o uid=<user>,gid=<group>. See
the “fat” portion of mount(8) for more details.
/M
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Magnus Therning (OpenPGP: 0xAB4DFBA4)
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