Grubbing Around
Some commands I found useful
Nothing earth-shattering here: I recently had the “pleasure” of setting up an
ARM64 server. After considerable support, several firmware upgrades, corruption
of the main HDD, reinstallation of CentOS7 (recommended, somewhat to my
surprise), all that remained was to get an up-to-date Linux built and installed
with 32 bit binary support. This took a bit of make config
fiddling, but got
there after a few tries.
And then I had to relearn how grub
/grub2
works in this brave new (to me)
UEFI CentOS7 world. Herewith some brief commands I found useful while doing
so…
Edit /etc/default/grub
to set GRUB_DEFAULT=N
for desired value of N
Temporarily set the default for the next reboot:
Regenerate the grub2 configuration: