[plug] Run command before mount

Dean Bergin dean.bergin at gmail.com
Wed Aug 12 01:40:27 UTC 2015

Hello Andrew,

Unfortunately there is insufficient spare capacity in order to backup the
data housed in the partition that has been created (incorrectly) on the LVM
volume group and I need to make this workaround so as to allow the system
to boot properly and not drop into rescue mode at every boot.

As for systemd, that is what debian adopted from 8.0 onwards right? From
what I can tell I am already using it as I had to reboot the host and had
to troubleshoot why I was being put into rescue mode, but I have zero
knowledge of systemd and some help with the init system to get dmsetup run
before mount would be greatly appreciated.


On Wed, Aug 12, 2015 at 9:29 AM Andrew Cooks <acooks at gmail.com> wrote:

> Hi Dean
> Is changing the LVM/partitioning scheme an option, or are you ready to
> embrace systemd?
> a.
> On Wed, Aug 12, 2015 at 7:15 AM, Dean Bergin <dean.bergin at gmail.com>
> wrote:
>> Hello PLUG community.
>> I have a situation on a Debian 8.0 machine whereby I require a command
>> (specifically partprobe) to be run right before mount runs and reads
>> /etc/fstab.
>> In the following StackExchange article, one responder suggests putting
>> the commands and/or binaries inside of the initrd image itself (can anyone
>> say, possible dynamic library issue?) , but that seems a bit too extreme.
>> The same article also suggest using dmsetup, but I have not had to use
>> dmsetup in this particular configuration:
>> http://unix.stackexchange.com/questions/92275/have-to-run-partprobe-at-every-boot
>> Can anyone offer any advice as to the best way to go about such a task?
>> I have also noticed that Debian's init system has changed and running my
>> own scripts via the old system doesn't seem to apply any more.
>> Thanks in advance.
>> --Dean
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