[CentOS] /boot partition too small

Tue Oct 10 14:36:16 UTC 2017
Stephen John Smoogen <smooge at gmail.com>

On 10 October 2017 at 09:55, KM <info4km at yahoo.com> wrote:
> First off - let me say I am not an administrator.   I need to know if there is an easy way to increase my /boot partition.  When I installed CentOS 6 after running 5, it was my oversight not to increase the /boot size.  it's too small and I can't do yum updates.
> if it's not easy to actually increase it, is it safe to take a chunk in my root filesystem (like /new.boot or something) and just mount it as /boot from now on so it uses the space or is that not a good idea?  I am sure I could easily copy the rpms/kernel stuff over to it and then unmounts the real /boot and mount this new area as /boot.
> Can you administrators let me know what you think of all this?   Thanks in advance.
> KM

There is no easy way to increase the /boot partition. One can try to
build another /boot partition and use that but that isn't simple
either and prone to problems if the /boot is outside of where that
particular BIOS can intepret (aka embedded in an LVM) or jump to.

I have found the simpler method is usually: dump the disks to backup,
reinstall the system with 500 to 1000 MB /boot and restore from

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Stephen J Smoogen.