Tutorial [Scripts][2025-12-01] SSD TRIM, IPSet-based Firewall & Tunnel Director, IPv6 Enhancements, WG Port Forwarder, and more

[kuchkovsky]

Thanks for the update! Just tried out the new ssd_trim.sh script... sadly, it failed to see my Samsung SSD which is running inside a JMicron drive enclosure:

ViktorJp@GT-AX6000-3C88:/jffs/scripts/ssd# sh ssd_trim.sh
ssd_trim: Scanning /proc/mounts for USB-backed filesystems under /tmp/mnt
ssd_trim: Skipping drive=/dev/sda (marked non-SSD) for label=ASUS-SSD mount=/tmp/mnt/ASUS-SSD part=/dev/sda1 fs=ext4 vendor_id=152d vendor_name=JMicron
ssd_trim: No suitable USB-backed mountpoints detected under /tmp/mnt; nothing to trim. Supported filesystems: ext2, ext3, ext4

Is there still a way to force it to assume that this vendor_id is a legit SSD?

Interesting, maybe some enclosures incorrectly report that they are rotational drives. Can you try rerunning the script with this check removed?

asuswrt-merlin-scripts/jffs/scripts/ssd/ssd_trim.sh at 0263feb06a1de1d8a6e469353efba448e45c6f62 · kuchkovsky/asuswrt-merlin-scripts

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If it works fine, I will remove this check completely. It’s not really required.

 

[Viktor Jaep]

Interesting, maybe some enclosures incorrectly report that they are rotational drives. Can you try rerunning the script with this check removed?

asuswrt-merlin-scripts/jffs/scripts/ssd/ssd_trim.sh at 0263feb06a1de1d8a6e469353efba448e45c6f62 · kuchkovsky/asuswrt-merlin-scripts

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If it works fine, I will remove this check completely. It’s not really required.

Thanks for the help! Yep, that worked fine:

ViktorJp@GT-AX6000-3C88:/jffs/scripts/ssd# sh ssd_trim.sh
ssd_trim: Scanning /proc/mounts for USB-backed filesystems under /tmp/mnt
ssd_trim: Detected SSD candidate: label=ASUS-SSD mount=/tmp/mnt/ASUS-SSD part=/dev/sda1 fs=ext4 vendor_id=152d vendor_name=JMicron
ssd_trim: Running fstrim on /tmp/mnt/ASUS-SSD...
ssd_trim: fstrim succeeded: /tmp/mnt/ASUS-SSD: 238916677632 bytes trimmed
ssd_trim: Successfully trimmed all selected SSD mountpoints

Changes made:

            # Build rich context (we'll reuse it for all checks)
            context="label=${label} mount=${m} part=${dev} fs=${fstype} vendor_id=${vid}"
            [ -n "$manufacturer" ] && context="${context} vendor_name=${manufacturer}"

            # 2) Rotational check (skip HDDs / "rotational" devices)
 #           if ! disk_passes_rotational_check "$disk_name" "$context"; then
 #               continue
 #           fi

            # 3) Filesystem support check (TRIM only on ext2/ext3/ext4)
            if ! filesystem_supports_trim "$dev" "$fstype" "$context"; then
                continue
            fi

 

[kuchkovsky]

Thanks for the help! Yep, that worked fine

Thanks for the feedback. I've merged the fix. The script will now immediately skip the disk only in cases of an unsupported filesystem.