Public bug reported:
Environment:
Kubuntu 26.04
NVMe drive (nvme0n1)
UEFI with GPT partition table
Live USB via Ventoy
Partition Layout:
nvme0n1p1 — FAT32 EFI (1GB)
nvme0n1p2 — ext4 /boot (2GB)
nvme0n1p3 — LUKS → LVM (kubuntu-vg) → lv-root + lv-swap
nvme0n1p4 — LUKS → ext4 /home
Steps to Reproduce:
Boot Kubuntu 26.04 live USB
Pre-create partitions using parted
Set up LUKS encryption with cryptsetup on nvme0n1p3 and nvme0n1p4
Create LVM volume group and logical volumes inside LUKS container
Format all volumes
Launch Calamares and assign mount points in manual partitioning — do not format
Proceed with installation
Expected Result:
Calamares installs successfully to the pre-created encrypted volumes.
Actual Result:
Calamares fails with:
Failed to unpack image "/cdrom/casper/filesystem.squashfs"
rsync failed with error code 11
Preceded by chcon errors:
getfilecon() failed on path '/boot/efi'. No such file or directory
Additional Notes:
Calamares UI also crashes when attempting to create LVM volume groups through
the manual partitioning UI
No "continue anyway" or "skip" option is presented when the error occurs
The installer also failed when attempting grub-mkconfig with error code 1
Workaround:
Pre-create and mount all volumes manually from terminal
Mount squashfs and use rsync to copy filesystem:
bashsudo mkdir /source
sudo mount -o loop,ro /cdrom/casper/filesystem.squashfs /source
sudo rsync -aAXH --info=progress2 /source/ /mnt/
Chroot into installed system and manually configure:
/etc/fstab
/etc/crypttab
/etc/default/grub
Run update-initramfs, update-grub, and grub-install from chroot
Create user account manually with useradd
** Affects: calamares (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2157757
Title:
Calamares installer fails with rsync error code 11 when installing to
pre-created LUKS+LVM volumes on NVMe
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