Red Hat Bugzilla – Bug 1431974
Don't always mount the root file system of 1st kernel under kdump if not needed
Last modified: 2018-04-10 21:38:47 EDT
Description of problem:
Due to dracut history, root device is always mounted by kdump initramfs. Actually for the dump target not located at the root file system, e.g. usb kdumping, network dumping, etc, we do not need mount it to /sysroot under kdump.
This can save some memory, and avoid potential problems regarding root file system.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
*** Bug 1467567 has been marked as a duplicate of this bug. ***
I've changed the Doc Text. Can you have a look at it, please?
See below comments, other than that it looks good, thanks!
>In Red Hat Enterprise Linux 7.4, *kdump* required the root file system to be mounted although this is not necessary for the collection of a `vmcore` image file.
"it is not always necessary" is better because when dump target is root then root filesystem is still needed.
> Consequently, *kdump* failed to collect a `vmcore` file if the root device could not be mounted because the dump target was located externally,
"when the dump target was not root file system" should be better.
> for example on a usb or on the network. With this enhancement, if the root device is not required for dump, it is not mounted, and a `vmcore` file can be collected.
I changed the text and hope it's OK now. Thanks for a very quick response.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.