Hello!
Thank you for you help!
But it not works for me…
This is works!
$ sudo apt install --reinstall snapd=2.67.1+22.04 -y
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
ldap-utils libbasicobjects0 libcollection4 libdhash1 libini-config5 libipa-hbac0 libnfsidmap1 libpam-pwquality libpath-utils1 libref-array1 libsss-certmap0 libsss-idmap0 libsss-nss-idmap0 python3-sss
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 545 not upgraded.
Need to get 25.0 MB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://ports.ubuntu.com/ubuntu-ports jammy-updates/main arm64 snapd arm64 2.67.1+22.04 [25.0 MB]
Fetched 25.0 MB in 3s (7,199 kB/s)
(Reading database ... 320463 files and directories currently installed.)
Preparing to unpack .../snapd_2.67.1+22.04_arm64.deb ...
Unpacking snapd (2.67.1+22.04) over (2.67.1+22.04) ...
Setting up snapd (2.67.1+22.04) ...
snapd.failure.service is a disabled or a static unit not running, not starting it.
snapd.snap-repair.service is a disabled or a static unit not running, not starting it.
Processing triggers for gnome-menus (3.36.0-1ubuntu3) ...
Processing triggers for man-db (2.10.2-1) ...
Processing triggers for dbus (1.12.20-2ubuntu4.1) ...
Processing triggers for mailcap (3.70+nmu1ubuntu1) ...
Processing triggers for desktop-file-utils (0.26-1ubuntu3) ...
silenzio@jetsonnx:~/ros2_ws$ systemctl status snapd
● snapd.service - Snap Daemon
Loaded: loaded (/lib/systemd/system/snapd.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2025-07-16 18:01:24 MSK; 41s ago
TriggeredBy: ● snapd.socket
Main PID: 56492 (snapd)
Tasks: 17 (limit: 18452)
Memory: 327.3M
CPU: 21.969s
CGroup: /system.slice/snapd.service
└─56492 /usr/lib/snapd/snapd
Jul 16 18:01:24 jetsonnx systemd[1]: Started Snap Daemon.
Jul 16 18:01:45 jetsonnx systemd[1]: /lib/systemd/system/snapd.service:23: Unknown key name 'RestartMode' in section 'Service', ignoring.
Jul 16 18:01:46 jetsonnx snapd[56492]: snapmgr.go:611: cannot read snap info of snap "core22" at revision 1612: cannot find installed snap "core22" at revision 1612: missing file /snap/core22/1612/meta/snap.yaml
Jul 16 18:01:49 jetsonnx systemd[1]: /lib/systemd/system/snapd.service:23: Unknown key name 'RestartMode' in section 'Service', ignoring.
Jul 16 18:01:49 jetsonnx snapd[56492]: services.go:1152: RemoveSnapServices - disabling snap.snapd-desktop-integration.snapd-desktop-integration.service
Jul 16 18:02:04 jetsonnx systemd[1]: /lib/systemd/system/snapd.service:23: Unknown key name 'RestartMode' in section 'Service', ignoring.
Jul 16 18:02:04 jetsonnx snapd[56492]: services.go:1152: RemoveSnapServices - disabling snap.cups.cupsd.service
Jul 16 18:02:04 jetsonnx snapd[56492]: services.go:1152: RemoveSnapServices - disabling snap.cups.cups-browsed.service
Jul 16 18:02:05 jetsonnx systemd[1]: /lib/systemd/system/snapd.service:23: Unknown key name 'RestartMode' in section 'Service', ignoring.
Jul 16 18:02:06 jetsonnx systemd[1]: /lib/systemd/system/snapd.service:23: Unknown key name 'RestartMode' in section 'Service', ignoring.
DeepSeek is a genius! 8)
$ snap download snapd --revision=24724
Fetching snap "snapd"
Fetching assertions for "snapd"
Install the snap with:
snap ack snapd_24724.assert
snap install snapd_24724.snap
silenzio@jetsonnx:~/ros2_ws$ sudo snap ack snapd_24724.assert
[sudo] password for silenzio:
silenzio@jetsonnx:~/ros2_ws$ sudo snap install snapd_24724.snap
2025-07-17T16:40:01+03:00 INFO Waiting for automatic snapd restart...
snapd 2.68.5 from Canonical✓ installed
silenzio@jetsonnx:~/ros2_ws$ sudo snap refresh --hold snapd
General refreshes of "snapd" held indefinitely
silenzio@jetsonnx:~/ros2_ws$ snap version
snap 2.68.5
snapd 2.68.5
series 16
ubuntu 22.04
kernel 5.15.148-tegra
$ snap list
Name Version Rev Tracking Publisher Notes
bare 1.0 5 latest/stable canonical** base
chromium 134.0.6998.35 3060 latest/stable canonical** -
core22 20250612 2049 latest/stable canonical** base
cups 2.4.12-2 1102 latest/stable openprinting** -
firefox 137.0-2 5987 latest/stable/… mozilla** -
gnome-42-2204 0+git.38ea591 201 latest/stable/… canonical** -
gtk-common-themes 0.1-81-g442e511 1535 latest/stable/… canonical** -
snap-store 41.3-72-g80e7130 1216 latest/stable/… canonical** -
snapd 2.68.5 24724 latest/stable canonical** snapd,held
snapd-desktop-integration 0.9 316 latest/stable/… canonical** -
Thanks @Kangalow