Package: ltsp-client-core Version: 5.5.9-2 Severity: important Tags: upstream
Dear Maintainer, we are upgrading our LTSP image from jessie to stretch. We are running LTSP against HA NFS servers since 2010 (previously SUN storage systems (ZFS based), since 2013 against NetApp filers). We encountered the following problem: - LTSP stretch client starts up fine - SSH daemon on the LTSP client is enabled and starts up fine - Connecting via SSH does not work - Login in as root on the LTSP client console works fine - sudo -iu <username> gives the following error "sudo: unable to execute /bin/bash: Operation not supported" - Using strace we found that seresuid and then accessing a file gives a problem with the filesystem (overlay on top of NFS) - We wrote a small C program to replicate the error and found that overlay on top of NFS gives the above "Operation not supported" whereas NFS directly works fine (/bin/bash (overlay) vs. /rofs/bin/bash (NFS)). After touching /bin/bash and therefore copying to upper fs /bin/bash works fine for some UIDs but not for all user IDs. Best regards Rainer -- System Information: Debian Release: 9.1 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages ltsp-client-core depends on: ii console-setup 1.164 ii init 1.48 ii initramfs-tools 0.130 ii iproute 1:4.9.0-1 ii iproute2 4.9.0-1 ii kbd 2.0.3-2+b1 ii libc6 2.24-11+deb9u1 ii libpopt0 1.16-10+b2 ii lsb-base 9.20161125 ii lsb-release 9.20161125 ii nbd-client 1:3.15.2-3 ii pxelinux 3:6.03+dfsg-14.1 ii python 2.7.13-2 ii syslinux-common 3:6.03+dfsg-14.1 ii tftp-hpa 5.2+20150808-1+b1 Versions of packages ltsp-client-core recommends: ii acpi-support-base 0.142-8 ii dbus 1.10.18-1 ii dnsutils 1:9.10.3.dfsg.P4-12.3+deb9u2 ii pciutils 1:3.5.2-1 ii procps 2:3.3.12-3 Versions of packages ltsp-client-core suggests: pn alsa-utils <none> ii cron 3.0pl1-128+b1 pn cryptsetup <none> pn cups-bsd <none> pn freerdp-x11 | rdesktop <none> pn inputattach | joystick <none> pn ldm <none> pn libasound2-plugins <none> pn ltspfsd <none> ii netcat-openbsd [netcat] 1.130-3 ii netcat-traditional [netcat] 1.10-41+b1 ii ntpdate 1:4.2.8p10+dfsg-3 pn numlockx <none> pn pulseaudio <none> pn python-serial <none> ii rsyslog [system-log-daemon] 8.24.0-1 ii sane-utils 1.0.25-4.1 pn sdm-terminal | x-display-manager <none> pn sshfs <none> ii x11-xserver-utils 7.7+7+b1 -- Configuration Files: /etc/ltsp/update-kernels.conf changed: BOOT_METHODS="NFS" CMDLINE_LINUX_DEFAULT="init=/sbin/init-ltsp quiet" CMDLINE_NFS="root=/dev/nfs ip=dhcp boot=nfs NFSOPTS=\"-o timeo=100,retrans=360,hard,nointr,nocto,noacl,acregmin=600,acregmax=600,acdirmin=600,acdirmax=600\" vmwgfx.enable_fbdev=1 vga=0x317 cgroup_enable=memory swapaccount=1 net.ifnames=0" CMDLINE_NBD="root=/dev/nbd0" CMDLINE_AOE="root=/dev/etherd/e0.0" KERNEL_NAMES='s/\(vmlinu[xz]-\)\([^-]*-[^-]*-\)\(.*\)/& \1 \2 \3/p' INITRD_NAME='s/vmlinu[xz]/initrd.img/p' KERNEL_PREFIX="vmlinu[z|x]-*" KERNEL_SUFFIX="" LIST_KERNELS_64="amd64" LIST_KERNELS_PAE="686-pae 686-bigmem 686" LIST_KERNELS_32="586 486 686" IPAPPEND=2 -- debconf information: ltsp-client/abort-installation: -- debsums errors found: debsums: changed file /sbin/init-ltsp (from ltsp-client-core package) debsums: changed file /usr/share/initramfs-tools/scripts/init-premount/udhcp (from ltsp-client-core package) debsums: changed file /usr/share/ltsp/init-ltsp.d/05-getltsconffile (from ltsp-client-core package) debsums: changed file /usr/share/ltsp/init-ltsp.d/09-hostname (from ltsp-client-core package) debsums: changed file /usr/share/ltsp/init-ltsp.d/50-disable-cronjobs (from ltsp-client-core package)
