On Mon, 19 May 2025 17:56:40 +0200, Christian Hesse wrote: > $ losetup --find --show --read-only -- /run/archiso/bootmnt/arch/x86_64/airootfs.sfs > losetup: /run/archiso/bootmnt/arch/x86_64/airootfs.sfs: failed to set up loop device: Invalid argument I tried to reproduce the problem you mentioned using the kernel containing "commit:f5c84eff", but failed to reproduce it. The complete reproduction steps are as follows: sudo apt install squashfs-tools debootstrap sudo debootstrap --arch=amd64 focal rootfs http://archive.ubuntu.com/ubuntu/ sudo mksquashfs rootfs rootfs.sfs -comp xz -e boot root@intel-x86-64:~# losetup --find --show --read-only -- rootfs.sfs [ 79.676267][ T9551] loop0: detected capacity change from 0 to 272400 /dev/loop0 root@intel-x86-64:~# uname -a Linux intel-x86-64 6.15.0-rc7 #108 SMP PREEMPT_DYNAMIC Mon May 19 09:20:25 CST 2025 x86_64 x86_64 x86_64 GNU/Linux root@intel-x86-64:~# df -Th Filesystem Type Size Used Avail Use% Mounted on /dev/root ext4 3.8G 738M 2.9G 21% / devtmpfs devtmpfs 1.5G 0 1.5G 0% /dev tmpfs tmpfs 1.5G 0 1.5G 0% /dev/shm tmpfs tmpfs 585M 13M 572M 3% /run tmpfs tmpfs 4.0M 0 4.0M 0% /sys/fs/cgroup tmpfs tmpfs 1.5G 0 1.5G 0% /tmp tmpfs tmpfs 1.5G 904K 1.5G 1% /var/volatile tmpfs tmpfs 293M 0 293M 0% /run/user/0 root@intel-x86-64:~# ls -lath /dev/loop0 brw-rw---- 1 root disk 7, 0 May 20 02:43 /dev/loop0 root@intel-x86-64:~# mkdir sfs root@intel-x86-64:~# mount /dev/loop0 sfs mount: /root/sfs: WARNING: source write-protected, mounted read-only. root@intel-x86-64:~# df -Th Filesystem Type Size Used Avail Use% Mounted on /dev/root ext4 3.8G 738M 2.9G 21% / devtmpfs devtmpfs 1.5G 0 1.5G 0% /dev tmpfs tmpfs 1.5G 0 1.5G 0% /dev/shm tmpfs tmpfs 585M 13M 572M 3% /run tmpfs tmpfs 4.0M 0 4.0M 0% /sys/fs/cgroup tmpfs tmpfs 1.5G 0 1.5G 0% /tmp tmpfs tmpfs 1.5G 904K 1.5G 1% /var/volatile tmpfs tmpfs 293M 0 293M 0% /run/user/0 /dev/loop0 squashfs 134M 134M 0 100% /root/sfs root@intel-x86-64:~# ls -alt sfs total 3 drwx------ 21 root root 3072 May 20 02:49 .. drwxr-xr-x 16 root root 284 May 20 02:20 . drwxrwxrwt 2 root root 3 May 20 02:20 tmp drwxr-xr-x 59 root root 2073 May 20 02:20 etc drwxr-xr-x 8 root root 124 May 20 02:20 run drwxr-xr-x 2 root root 3 May 20 02:19 media drwxr-xr-x 2 root root 3 May 20 02:19 mnt drwxr-xr-x 2 root root 3 May 20 02:19 opt drwx------ 2 root root 46 May 20 02:19 root drwxr-xr-x 2 root root 3 May 20 02:19 srv drwxr-xr-x 13 root root 178 May 20 02:19 usr drwxr-xr-x 11 root root 172 May 20 02:19 var drwxr-xr-x 4 root root 191 May 20 02:19 dev lrwxrwxrwx 1 root root 7 May 20 02:19 bin -> usr/bin lrwxrwxrwx 1 root root 7 May 20 02:19 lib -> usr/lib lrwxrwxrwx 1 root root 9 May 20 02:19 lib32 -> usr/lib32 lrwxrwxrwx 1 root root 9 May 20 02:19 lib64 -> usr/lib64 lrwxrwxrwx 1 root root 10 May 20 02:19 libx32 -> usr/libx32 lrwxrwxrwx 1 root root 8 May 20 02:19 sbin -> usr/sbin drwxr-xr-x 2 root root 3 Apr 15 2020 home drwxr-xr-x 2 root root 3 Apr 15 2020 proc drwxr-xr-x 2 root root 3 Apr 15 2020 sys
