Disk Layout

Partition Table

sda (500G)
├─ sda1   ext4   499G   /          (cloudimg-rootfs)
├─ sda14          4M    (BIOS boot)
├─ sda15  vfat  106M   /boot/efi   (UEFI)
└─ sda16  ext4  913M   /boot       (BOOT)

Filesystem Table (/etc/fstab)

LABEL=cloudimg-rootfs  /        ext4  discard,commit=30,errors=remount-ro  0 1
LABEL=BOOT             /boot    ext4  defaults                              0 2
LABEL=UEFI             /boot/efi vfat umask=0077                            0 1

Mount Options

Mount	Options
/	rw,relatime,discard,errors=remount-ro,commit=30
/boot	rw,relatime
/boot/efi	rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro

Storage Configuration

• No LVM: Standard partition layout
• No ZFS: Ext4 only
• No swap: Swap is not configured
• Discard/TRIM: Enabled for the root filesystem (discard mount option)
• fstrim: Runs weekly via systemd timer (fstrim.service)
• Commit interval: 30 seconds (reduces write amplification on SSD)

Usage Summary

Filesystem   Size  Used  Avail  Use%
/dev/sda1    484G   17G   467G    4%
/dev/sda16   881M  117M   703M   15%
/dev/sda15   105M  6.2M    99M    6%