Kernel panic (was Re: kernel-3.19.3-200.fc21.x86_64 fails to boot)

[Joe Zeff]

On 04/04/2015 04:02 PM, Patrick O'Callaghan wrote:
> On Sat, 2015-04-04 at 12:45 -0700, Joe Zeff wrote:
>> On 04/04/2015 06:19 AM, Paul Cartwright wrote:
>>> then grub2-install /dev/sda ( assuming sda is where you have grub installed)
>>
>> Unless you think there's something wrong with grub, that shouldn't be
>> needed.
>
> I also thought that grub2 wasn't supposed to require the install step
> but when I tried it without it, it didn't work (not a panic this time
> but some NFS mounting issues on boot, which threw me into rescue mode).
> With grub2-install, it worked correctly.
>

That's why I wrote "shouldn't" instead of "doesn't."  There are always 
exceptions and odd cases.  And, AFAIK, using it can't hurt, even if it's 
not needed.