Kubuntu 26.04 LTS - important things to do after an installation

[wonder]

Hello, short question about the fstab.

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a device; this may
# be used with UUID= as a more robust way to name devices that works even if
# disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
UUID=3CC7-8DA5 /boot/efi vfat defaults 0 2
UUID=08dd13a7-9b53-4073-8ebb-e1fb35e42a42 / ext4 defaults,noatime 0 1
/swapfile swap swap defaults 0 0
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0​

I did not have discard somewhere but I added the noatime. Is this correct?
UUID=08dd13a7-9b53-4073-8ebb-e1fb35e42a42 / ext4 defaults,noatime 0 1

I preferer this:
/ ext4 defaults,errors=remount-ro 0 1

But your noatime (line in your fstab), also, its good.

[Kabelbaum]

I preferer this:
/ ext4 defaults,errors=remount-ro 0 1

But your noatime (line in your fstab), also, its good.

Oh, tank you. errors=remount-ro seems to be a good addition too.

[oshunluvr]

Hello, short question about the fstab.

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a device; this may
# be used with UUID= as a more robust way to name devices that works even if
# disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
UUID=3CC7-8DA5 /boot/efi vfat defaults 0 2
UUID=08dd13a7-9b53-4073-8ebb-e1fb35e42a42 / ext4 defaults,noatime 0 1
/swapfile swap swap defaults 0 0
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0​

I did not have discard somewhere but I added the noatime. Is this correct?
UUID=08dd13a7-9b53-4073-8ebb-e1fb35e42a42 / ext4 defaults,noatime 0 1

discard, aka "fstrim" should already be enabled via a systemd unit so no need to add it to fstab. You can check this with:

systemctl list-unit-files --state=enabled |grep trim

which should return

fstrim.timer                       enabled enabled

You can also add nodiratime to your fstab if you want. It's the same as noatime but for directories.

[Kabelbaum]

@oshunluvr
Thanks for the replay! Oh sorry my English is not so good.

This is my original (fresh after install) fstab:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a device; this may
# be used with UUID= as a more robust way to name devices that works even if
# disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
UUID=B271-7C65 /boot/efi vfat defaults 0 2
UUID=fa1c95a7-7a23-4dfd-8279-35b2d113c072 / ext4 defaults 0 1
/swapfile swap swap defaults 0 0
tmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0

So I just added the noatime at the ext4 part.
I thought discard is the bad thing