On 07/11/2017 10:38 AM, Konstantin Olchanski wrote:
On Sun, Jul 09, 2017 at 12:03:02AM -0700, Bruce Ferrell wrote:
OK, before the flames start I KNOW it's not normal.
an boot, then dance from there.
As step zero, I would setup a network-bootable system with NFS-Root,
as it is much simpler to tweak the mongrel userland on the NFS server,
then reboot; as opposed to rebooting the physical machine between
the mongrel os (does not boot, crash) and the stock OS to deit the mongrel
image.
I know sci 7 has 2.17
But el7 glibc is old hat, too, if you want new, go Ubuntu.
el6: 2.12
el7: 2.17
ubuntu 16.10: 2.24
ubuntu 17.10: 2.24
current: 2.25
systemd is completely unacceptable.
I, too, expected the world to end when el7 went with systemd,
but it turned out to be more a wimper than a bang:
a) systemd is better documented compared to the el6 mongrel mix of SysV and
upstart (el5 was pure SysV was much better)
b) everything works pretty much as expected and as documented
c) syslog works same as before, I can ignore the "this is simpler than grep
/var/log/messages" journalcrl crud.
d) even on a small machine like RaspberryPi3, systemd does not seem to be any
bother, no resource hog.
e) of course I do not use any "advanced" systemd functions, no "systemd dns", no
"systemd boot", etc.
One big downside is "too many binary blobs" that cannot be trivially hacked
for special situations.
I've had systemd on running systems almost since the beginning... hence my
distaste
For example, I was never was able to convince systemd to boot in the presense
of a degraded BTRFS filesystem. One of the binary blobs "did not want to do it",
waited forever for who knows what and that was it. If it all were shell
scripts, it would
have been a 5 minute hatchet job to get past this problem.
I had a non-systemd systemd system at one time... It wouldn't boot a degraded
btrfs either. That's another nasty
Luckily some people want to have nothing to do with all this, so
watch the systemd-free fork of Debian, watch the BSDs and watch the direction
of "embedded linux" (people who build IoT machines count every byte of ram,
every milliwatt of power love systemd? yea, right).
Yeah, Debian people have their breed of odd, as do those in the BSD tribe.
I could go on, and on and on... But won't.
Bruce
