Unable to write to new partitions

[Volker Wysk]

Am Samstag, 17. März 2018, 23:39:47 CET schrieb Bret Busby:
> On 17/03/2018, Volker Wysk <post at volker-wysk.de> wrote:
> > Am Samstag, 17. März 2018, 21:34:16 CET schrieb Bret Busby:
> >> Hello.
> >>
> >> I shrank the boot partitions of teo installed operating systems, and,
> >> for each thence created unallocated space, I created a new sext4
> >> partition, to which, I assigned the respective labels Data05 and
> >> Data06.
> >>
> >> I then, from within my UbuntuMATE 16.04 installation, ran sudo chmod
> >> 777 on each new partition, so as to enable read+write access to the
> >> two partitions.
> >>
> >> But, I can not write to the two partitions.
> >
> > Might they be mounted read-only? What is in your /etc/fstab?
> >
> 
> None of the Dataxx partitions are displayed in running
> cat /etc/fstab as me (user) - the Dataxx partitions are mounted by
> selecting them using the Places -> Removable media facility.
> 
> Data01 to Data04 are readable and writable, being mounted this way.

Try "mount | egrep Data". This tells you the mount options of the mounted partitions, on the right side of the line. This should start with "(rw,..." or "(ro,...".


> > Have you done a reboot after you changed your partitions? (Just guessing)
> >
> 
> I do not remember whether I had rebooted after running the chmod
> commands on the two partitions, but, as the system crashed/froze while
> I was trying to reload firefox before rebooting (to try to avoid
> losing the last session, as mozilla abolished the Save session
> functionality), I have now rebooted, after running the chmod 660
> command as advised on both partitions, and they are sill not writable.

I meant, after you changed your partition table(s).

Bye
V.W.