We linked to the same discussion on askubuntu.com (I replied you there). My hope when reporting this is that we don't have to do the workaround you described after each kernel update.
Did you open another bug report ? In this case, I will mark this one as a duplicate. ** Description changed: I have noticed that since upgrade to 20.04.1 (from 18.04), a warning message appears during boot: "cryptsetup: WARNING: Option 'size' missing in crypttab for plain dm-crypt mapping cryptswap1. Please read /usr/share/doc/cryptsetup-initramfs/README.initramfs.gz and add the correct 'size' option to your crypttab(5).". AFAICT, there is no problem however. I use ecryptfs to encrypt my home directory but I don't think it's related (since the message is related to swap). This message used to appear during updates under 18.04 but I never paid attention to it. I probably use the same setup since 16.04. Others have reported the problem (https://askubuntu.com/questions/1109463, https://medium.com/@anirudha /fixing-cryptsetup-wating-for-encrypted-source-device-swapfile-error-on- linux-boot-ubuntu-20-04-5483e0dcf9e9). From what I read: - The answers indicate to edit /etc/crypttab and add a value for size but I don't know what value to use. - It seems that before 20.04, just editing /etc/crypttab was enough but some users say that they need to manually regenerate the initramfs image after each update which is boring. I have asked the question at https://answers.launchpad.net/ubuntu/+question/693615 and @bernard010 suggested to open a bug report. I have found anything worth in dmesg though. - As I said everything seems fine (boot proceed normally, I can use the + As I said everything seems fine (boot proceeds normally, I can use the computer) but I expect that there is a way to permanently make this warning disappear. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.4.0-53-generic 5.4.0-53.59 ProcVersionSignature: Ubuntu 5.4.0-53.59-generic 5.4.65 Uname: Linux 5.4.0-53-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.11 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mathieu 2322 F.... pulseaudio CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Nov 11 23:02:47 2020 EcryptfsInUse: Yes InstallationDate: Installed on 2017-01-06 (1405 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Hewlett-Packard HP EliteBook 2570p ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-53-generic root=UUID=74d77edf-b4b7-4815-865f-b7602f3396b4 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.4.0-53-generic N/A linux-backports-modules-5.4.0-53-generic N/A linux-firmware 1.187.4 SourcePackage: linux UpgradeStatus: Upgraded to focal on 2020-10-04 (38 days ago) dmi.bios.date: 02/01/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68ISB Ver. F.40 dmi.board.name: 17DF dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 61.21 dmi.chassis.asset.tag: CNU3229ST9 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68ISBVer.F.40:bd02/01/2013:svnHewlett-Packard:pnHPEliteBook2570p:pvrA1029C1102:rvnHewlett-Packard:rn17DF:rvrKBCVersion61.21:cvnHewlett-Packard:ct10:cvr: dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=ELI dmi.product.name: HP EliteBook 2570p dmi.product.sku: C9S65EC#ABF dmi.product.version: A1029C1102 dmi.sys.vendor: Hewlett-Packard -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1903920 Title: Warning message about cryptsetup during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1903920/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs