Public bug reported: I had to rebuild our rescue ramdisk (based on the vanilla upstream netboot initrd.gz) and I noticed that our Jenkins job was now mysteriously failing since updating to the Feb. 2019 update with this message:
cpio: ./var/lib/dpkg/lock-frontend: Cannot open: Permission denied Looks like that file got left behind in the initrd image. I checked the others we have for U14 and U18, and the previous U16 one, and they don't have a file by that name, so it looks like a one-off issue with the U16 version. I verified that it's still present in the current upstream: $ wget http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/initrd.gz --2019-04-24 18:15:54-- http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/initrd.gz Resolving archive.ubuntu.com (archive.ubuntu.com)... 91.189.88.149, 91.189.88.161, 91.189.88.162, ... Connecting to archive.ubuntu.com (archive.ubuntu.com)|91.189.88.149|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 51200986 (49M) [application/x-gzip] Saving to: ‘initrd.gz’ 100%[===========================================================================================================================================================================================================================>] 51,200,986 13.0MB/s in 4.6s 2019-04-24 18:15:59 (10.6 MB/s) - ‘initrd.gz’ saved [51200986/51200986] $ gzip -dc initrd.gz |cpio -it | grep lock- var/lib/dpkg/lock-frontend lib/modules/4.4.0-142-generic/kernel/drivers/crypto/padlock-aes.ko lib/modules/4.4.0-142-generic/kernel/drivers/crypto/padlock-sha.ko bin/block-attr 230422 blocks $ md5sum initrd.gz 75c4b41d059027aeed186adbef52d62d initrd.gz I was able to work around it in the build process by inserting "sudo rm -fv ./var/lib/dpkg/lock-frontend" to explicitly remove it, if it's there, but ideally, it probably shouldn't be. Hard to say what this affects, since it doesn't noticeably alter the functionality of netboot, but it might surprise some folks. affects ubuntu ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826300 Title: dpkg artifacts in Xenial netboot initrd.gz To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1826300/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
