Actually I manually applied the fix, which allowed it to actually pass along far enough to actually try to unpack the squashfs and that's when it failed and suggested to install squashfs-tools. Reverting the fix, installing the package, and starting over and everything worked just fine.
** Summary changed: - calamares crashes trying to open squashfs in Lubuntu Cosmic + Lubuntu Cosmic missing squashfs-tools, causing Calamares to crash ** Description changed: To reproduce in Lubuntu Cosmic run the calamares installer and pick any install options/method. I expected the installer to not crash but instead it crashed shortly after creating the partition with the following error: Boost.Python error in job "unpackfs". <class 'OSError'> [Errno 30] Read-only file system: 'bash' Traceback: File "/usr/lib/calamares/modules/unpackfs/main.py", line 318, in run return unpackop.run() File "/usr/lib/calamares/modules/unpackfs/main.py", line 221, in run shutil.rmtree(source_mount_path) File "/usr/lib/python3.6/shutil.py", line 480, in rmtree _rmtree_safe_fd(fd, path, onerror) File "/usr/lib/python3.6/shutil.py", line 418, in _rmtree_safe_fd _rmtree_safe_fd(dirfd, fullname, onerror) File "/usr/lib/python3.6/shutil.py", line 418, in _rmtree_safe_fd _rmtree_safe_fd(dirfd, fullname, onerror) File "/usr/lib/python3.6/shutil.py", line 438, in _rmtree_safe_fd onerror(os.unlink, fullname, sys.exc_info()) File "/usr/lib/python3.6/shutil.py", line 436, in _rmtree_safe_fd os.unlink(name, dir_fd=topfd) - Upstream bug: https://github.com/calamares/calamares/issues/949 + Installing squashfs-tools before running the installer fixes the + problem. apt policy calamares: Installed: 3.1.12-1 Canidate: 3.1.12-1 Description: Ubuntu Cosimc CANIMAL (development branch) Release: 18.10 ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: calamares 3.1.12-1 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CasperVersion: 1.394 CurrentDesktop: LXQt Date: Mon May 7 18:10:54 2018 LiveMediaBuild: Lubuntu 18.10 "Cosmic CANIMAL" - Alpha amd64 (20180507) SourcePackage: calamares UpgradeStatus: No upgrade log present (probably fresh install) ** Also affects: ubuntu-seeds Importance: Undecided Status: New ** Changed in: ubuntu-seeds Assignee: (unassigned) => Simon Quigley (tsimonq2) ** Changed in: calamares (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1769781 Title: Lubuntu Cosmic missing squashfs-tools, causing Calamares to crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-seeds/+bug/1769781/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs