Looks the log isn't needed, see below:
ubuntu@h4c:~$ mount | grep ext4
/dev/sda2 on / type ext4 (rw,errors=remount-ro)
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1244504
Title:
need to enable trim for SSD disk automatically
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Many filesystems support discard feature, and lots of SSD disks(even some usb
storages)
support TRIM feature, but unfortunately Ubuntu does not enable it
automatically.
With trim/discard enabled, SSD's lifetime can be increased and write
performance
may be improved.
For common users, we can't expect them to know trim and enable it manually, so
it is better to let ubuntu do it automatically like below:
- check if the disk support trim by hdparm -I
- if the disk supports trim, either mount with '-o discard' or doing trim in
background
periodically as suggested in below link[1], or other better way
[1], http://blog.neutrino.es/2013/howto-properly-activate-trim-for-
your-ssd-on-linux-fstrim-lvm-and-dmcrypt/
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