Package: kdump-tools Version: 1:1.6.1-1 Followup-For: Bug #856594 Dear Maintainer,
Our use-case is exactly as the original report: * We debootstrap into temporary folder * Than we configure apt inside this folder and use "apt-get install....." * The post-install of "kdump-tools" fails The fix that was pointed by comment#15 only solve part of the issue: * It uses the "linux-version list" command to see if a specific kernel version is installed. * But the issue only happen when we install both kernel and kdump-tools As a test, I removed the kernel from the chroot and was able to install kdump-tools without issues (even with kdump-tools 1:1.6.1-1) Moreover, in my variant of the issue: * Trying to run /etc/kernel/postinst.d/kdump-tools <version> fails with the following error: # /etc/kernel/postinst.d/kdump-tools 4.9.0-8-amd64 kdump-tools: Generating /var/lib/kdump/initrd.img-4.9.0-8-amd64 mkinitramfs: MODULES dep requires mounted sysfs on /sys update-initramfs: failed for with 1. * I.e: - /sys is not mounted inside the chroot - This is correct, as I do not want package installation inside the chroot to touch my host /sys IMO, * The post-install script should skip initramfs generation if inside a chroot * The "udevd" package has a nice "chrooted()" shell test inside their postinst (based on comparing inode numbers of our "/" with pid-1 "/") * Alternatively, it should check if /sys is mounted -- System Information: Debian Release: 9.6 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-8-amd64 (SMP w/48 CPU cores) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968), LANGUAGE=C (charmap=ANSI_X3.4-1968) Shell: /bin/sh linked to /bin/dash Init: unable to detect Versions of packages kdump-tools depends on: ii bsdmainutils 9.0.12+nmu1 ii debconf [debconf-2.0] 1.5.61 ii init-system-helpers 1.48 ii kexec-tools 1:2.0.14-1 ii lsb-base 9.20161125 ii makedumpfile 1:1.6.1-1 kdump-tools recommends no packages. kdump-tools suggests no packages. -- debconf information: * kdump-tools/use_kdump: true