On Fri, 4 Jun 2021 at 02:51, Jon LaBadie <jonfu@xxxxxxxxxx> wrote:
On Thu, Jun 03, 2021 at 03:48:29PM -0600, Joe Zeff wrote:
But I believe POC's point was not about BTRFS specifically,
but that something could have changed over the years to make
an old rescue kernel unusable.
If you accept that premise, shouldn't the rescue kernel be
periodically updated?
Drivers come and go and come back, so older hardware may
not be supported in newer kernels. The rescue kernel should
work as well as it did for the original installation until some
major hardware change like a new wifi card.
I have a couple old (>10 years) systems. For one, wifi was
broken for many years (so I used a USB dongle) but does
work in recent kernels. For the other, the ethernet driver was
dropped by the kernel for a year or two (and has now come
back).
The worst case would be a hardware failure that requires
adding a new device (e.g., USB wifi or ethernet when the
original device dies) that isn't supported by the old rescue
kernel.
--
George N. White III
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