BTW, I can generate the mount move failure with the cut down script as follows (which follows the same mount patterns as the casper script)
#!/bin/bash -x mkdir -p /cdrom mount -t iso9660 -o ro,noatime /dev/sr0 /cdrom sleep 1 mkdir -p /cow mount -t tmpfs -o 'rw,noatime,mode=755' tmpfs /cow sleep 1 mkdir -p /cow/upper mkdir -p /cow/work modprobe -q -b overlay sleep 1 modprobe -q -b loop sleep 1 dev=$(losetup -f) mkdir -p /filesystem.squashfs losetup $dev /cdrom/casper/filesystem.squashfs mount -t squashfs -o ro,noatime $dev /filesystem.squashfs sleep 1 dev=$(losetup -f) mkdir -p /installer.squashfs losetup $dev /cdrom/casper/installer.squashfs mount -t squashfs -o ro,noatime $dev /installer.squashfs sleep 1 mount -t overlay -o 'upperdir=/cow/upper,lowerdir=/installer.squashfs:/filesystem.squashfs,workdir=/cow/work' /cow /root mkdir -p /root/rofs mount -o move /filesystem.squashfs /root/rofs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1824407 Title: remount of multilower moved pivoted-root overlayfs root, results in I/O errors on some modified files To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1824407/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
