On 2013-08-21 3:06 AM, thegeezer <[email protected]> wrote:
On 08/21/2013 02:13 AM, Canek Peláez Valdés wrote:
The worry about falling out of sync, although justified, I think it's
a little overreacted; even for things like LVM2 and NFS, how many
times changes the metadata or format used by different versions?
Normal filesystems present no problems: almost all of them are
future-proof.
It happened to me just last week with LVM, and it wasn't a metadata
issue, it was a user space program/ service loaded service running issue.
update LVM2
kernel remains the same
reboot
initramfs finds all PVS and activates VG
main system init
/etc/init.d/lvm2 start
error can't read from USB PVS
login to system with missing PVS
/etc/init.d/lvm2 restart
all PVS listed
reboot several times to verify it wasn't just a stuck service, exactly
the same
now ok but restarting a boot service manually required (!)
I updated the initramfs and rebooted and all problems went away
And this is *precisely* what scares me about this.
This simply should not be, period. Support for separate /usr without
initramfs simply SHOULD NOT be dropped unless/until things like this
(updating lvm) can *never* cause a system to fail to boot like this.
