Re: parted is ALMOST suitable
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On Mon, Nov 07, 2016 at 08:18:28AM -0600, Richard Owlett wrote:
> On 11/7/2016 7:25 AM, Richard Owlett wrote:
> >On 11/7/2016 6:47 AM, tomas@tuxteam.de wrote:
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> >>On Mon, Nov 07, 2016 at 06:11:50AM -0600, Richard Owlett wrote:
> >>>I need to identify file system on all partitions of my hard drive
> >>>whether mounted or not.
> >>> parted /dev/sda print | grep ext | grep -v exte
> >>>reports the desired information [partitions formatted ext?] in a
> >>>convenient format.
> >>>*HOWEVER* parted requires root privileges. That is not
> >>>acceptable.
> >>>Suggestions?
> >>
> >>It's not parted. It's the partitions themselves (or more
> >>accurately,
> >>the devices via which your operating system makes the partitions
> >>available to user space). By default (and there are some reasons
> >>for it) they're not readable by everyone. They are writable by
> >>even less. On my box, for example:
> >>
> >> tomas@rasputin:~$ ls -al /dev/sd*
> >> brw-rw---- 1 root disk 8, 0 Nov 7 09:06 /dev/sda
> >> brw-rw---- 1 root disk 8, 1 Nov 7 09:06 /dev/sda1
> >> brw-rw---- 1 root disk 8, 2 Nov 7 09:06 /dev/sda2
> >> brw-rw---- 1 root disk 8, 5 Nov 7 09:06 /dev/sda5
> >>
> >>So you'd have to be associated to the "disk" group to read those
> >>things and you'd have to *be* root to write.
> >
> >*THAT* sentence may be key to solving multiple problems. All of
> >my installs have implicitly accepted default groups for user(s).
>
> Evidently not a solution. Added myself to both "disk" and "root"
> groups.
Two things:
- check that your disk devices are actually readable (and probably
writable, I botched that, cf. David's mail) by group disk
- your being added to disk is effective *after* logging in after
you'd made the change; if you want to bypass it, there is the
command 'newgrp'; you can check which groups you are "in" by
issuing the command 'groups': 'disk' should be in there.
> Had no effect when attempting to run either lsblk or parted.
How does "no effect" look like?
Regards
- -- t
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