On questing:
ubuntu@u1:~$ snap run --strace hello
warning: preserving the entire environment is not supported, `-E` is ignored
error: exit status 1
ubuntu@u1:~$ sudo apt policy snapd
snapd:
Installed: 2.72+ubuntu25.10.2
Candidate: 2.72+ubuntu25.10.2
Version table:
2.73+ubuntu25.10 100
100 http://archive.ubuntu.com/ubuntu questing-proposed/main amd64
Packages
*** 2.72+ubuntu25.10.2 500
500 http://archive.ubuntu.com/ubuntu questing-updates/main amd64
Packages
100 /var/lib/dpkg/status
2.71.1+ubuntu25.10.1 500
500 http://archive.ubuntu.com/ubuntu questing/main amd64 Packages
ubuntu@u1:~$ sudo apt install snapd=2.73+ubuntu25.10
Upgrading:
snapd
Summary:
Upgrading: 1, Installing: 0, Removing: 0, Not Upgrading: 16
Download size: 39.1 MB
Space needed: 516 kB / 6859 MB available
Get:1 http://archive.ubuntu.com/ubuntu questing-proposed/main amd64 snapd amd64
2.73+ubuntu25.10 [39.1 MB]
Fetched 39.1 MB in 1s (29.6 MB/s)
(Reading database ... 86402 files and directories currently installed.)
Preparing to unpack .../snapd_2.73+ubuntu25.10_amd64.deb ...
Unpacking snapd (2.73+ubuntu25.10) over (2.72+ubuntu25.10.2) ...
Setting up snapd (2.73+ubuntu25.10) ...
Installing new version of config file
/etc/apparmor.d/usr.lib.snapd.snap-confine.real ...
Installing new version of config file /etc/profile.d/apps-bin-path.sh ...
snapd.failure.service is a disabled or a static unit not running, not starting
it.
snapd.gpio-chardev-setup.target 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 dbus (1.16.2-2ubuntu2) ...
Processing triggers for man-db (2.13.1-1) ...
Scanning processes...
Scanning linux images...
Running kernel seems to be up-to-date.
No services need to be restarted.
No containers need to be restarted.
No user sessions are running outdated binaries.
No VM guests are running outdated hypervisor (qemu) binaries on this host.
ubuntu@u1:~$ snap version
snap 2.73+ubuntu25.10
snapd 2.73+ubuntu25.10
series 16
ubuntu 25.10
kernel 6.17.0-7-generic
architecture amd64
ubuntu@u1:~$ snap run --strace hello
/usr/bin/strace: Process 2804 attached
--- stopped by SIGSTOP ---
--- SIGCONT {si_signo=SIGCONT, si_code=SI_USER, si_pid=2795, si_uid=1000} ---
[pid 2818] execve("/snap/hello/42/snap/command-chain/snapcraft-runner",
["/snap/hello/42/snap/command-chai"..., "/snap/hello/42/bin/hello"],
0xc000158780 /* 37 vars */ <unfinished ...>
[pid 2817] +++ exited with 0 +++
[pid 2804] <... futex resumed>) = ?
+++ superseded by execve in pid 2818 +++
<... execve resumed>) = 0
brk(NULL) = 0x5dc0cf6c0000
arch_prctl(0x3001 /* ARCH_??? */, 0x7ffeaf21ca80) = -1 EINVAL (Invalid argument)
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
...
write(1, "Hello, world!\n", 14Hello, world!
) = 14
close(1) = 0
close(2) = 0
exit_group(0) = ?
+++ exited with 0 +++
Can confirm snap run --strace is now fixed.
** Tags removed: verification-needed-questing
** Tags added: verification-done-questing
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https://bugs.launchpad.net/bugs/2127766
Title:
snap run --strace doesn't work with sudo-rs [sudo -E not supported]
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