Package: parted
Version: 2.3-9.1
Severity: normal
As a non-privileged user, i have r/w access to a specific block device
(created by the device mapper). But when i try to use parted to
interrogate or change the device, i get an error after the expected
"Watch out for permissions" warning.
This failure seems inappropriate, since i ought to be able to use
parted in this context to inspect modify the contents of the the block
device even if i can't talk to the device mapper directly.
Feel free to forward this further upstream if that would be useful.
Below is a transcript showing the problem:
0 dkg@pip:~/tmp$ ls -l $(readlink -f /dev/mapper/vg_pip0-test)
brw-rw---T 1 dkg disk 253, 7 May 2 22:59 /dev/dm-7
0 dkg@pip:~/tmp$ [ -r /dev/dm-7 ]
0 dkg@pip:~/tmp$ [ -w /dev/dm-7 ]
0 dkg@pip:~/tmp$ /sbin/parted /dev/dm-7 print
WARNING: You are not superuser. Watch out for permissions.
/dev/mapper/control: open failed: Permission denied
Failure to communicate with kernel device-mapper driver.
You found a bug in GNU Parted! Here's what you have to do:
Don't panic! The bug has most likely not affected any of your data.
Help us to fix this bug by doing the following:
Check whether the bug has already been fixed by checking
the last version of GNU Parted that you can find at:
http://ftp.gnu.org/gnu/parted/
Please check this version prior to bug reporting.
If this has not been fixed yet or if you don't know how to check,
please visit the GNU Parted website:
http://www.gnu.org/software/parted
for further information.
Your report should contain the version of this release (2.3)
along with the error message below, the output of
parted DEVICE unit co print unit s print
and the following history of commands you entered.
Also include any additional information about your setup you
consider important.
Unable to determine the dm type of /dev/dm-7.
1 dkg@pip:~/tmp$
Thanks for maintaining parted in debian,
--dkg
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (500, 'testing'), (200, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 3.2.0-2-686-pae (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages parted depends on:
ii libblkid1 2.20.1-4
ii libc6 2.13-30
ii libdevmapper1.02.1 2:1.02.67-2
ii libparted0debian1 2.3-9.1
ii libreadline6 6.2-8
ii libtinfo5 5.9-6
ii libuuid1 2.20.1-4
parted recommends no packages.
Versions of packages parted suggests:
pn parted-doc <none>
-- no debconf information
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