How did relatime get set on my Wheezy system?
Background: When I set up my Wheezy system, I reserved (and formatted) a FAT32
partition on one of my disks for a possible installation of Windows. I now
want to reformat that partition to ext4 to use for other purposes.
What puzzles me is this -- when I look at /etc/fstab for some of the other
partitions that are already ext4 I see entries like this:
# /var was on /dev/sdb8 during installation
UUID=874304c9-36c6-4572-909b-c4c75d13269a /var ext4 defaults
0 2
When I look at the same partition in /etc/mtab, I see this:
/dev/sdb8 /var ext4 rw,relatime,user_xattr,barrier=1,data=ordered 0 0
What I don't understand, for example, is where and how relatime got set (and
maybe some of the other parameters).
(Aside: I'd prefer to set noatime for the reformatted partition as it is on an
SSD, and will be used for data, not executables.)
I plan to reformat the disk with mkfs.ext4. Initially, when I set up the
system, I used the Wheezy installer to partition and format the disks. I'm
assuming that it used mkfs.ext4 to do the formatting.
I looked at /etc/mke2fs.conf and did not see any reference to relatime.
Finally (well, I have another question that I'll post separately), I'm
assuming that I can include noatime in the /etc/fstab file I change the entry
for the partition I am reformatting? (That is where noatime is set on my
Jessie system.)
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