Public bug reported:
Any arguments to blkid -U are interpreted as plain text. For example:
root=`grep '/ ' /etc/fstab |sed 's/\ .*//' | grep -v '#'`
will assign value of root device UUID to variable "root". Check by
echo "Root UUID is $root"
which outputs something like
Root UUID is UUID=584ec171-32c1-471d-bbdc-45ad4dd52b71
Now run
blkid -U $root
No output. Running blkid -U UUID where UUID is a manually typed UUID
will work, however.
Another variation:
blkid -U `grep '/ ' /etc/fstab |sed 's/\ .*//' | grep -v '#'`
should interpret the result of command in backticks as the UUID to look
for (because that's what that command outputs!) Instead, no output
again. This is highly annoying since it prevents any input to blkid -U
except manual.
I should point out that blkid -L behaves the same way if a label is
supplied via a variable or output of command in backticks. Clearly, it
doesn't recognize that I'm trying to pass a variable and instead
interprets it as plain text and as a result, does not display any
label/UUID matches.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: util-linux 2.20.1-1ubuntu3
ProcVersionSignature: Ubuntu 3.8.0-29.42~precise1-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic i686
ApportVersion: 2.0.1-0ubuntu17.4
Architecture: i386
Date: Sat Dec 14 22:22:35 2013
InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release i386
(20130820.1)
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_IN:en
TERM=xterm
PATH=(custom, no user)
LANG=en_IN
SHELL=/bin/bash
SourcePackage: util-linux
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: util-linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug blkid i386 precise
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1261005
Title:
blkid -U takes all input literally
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1261005/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
