Bug 1404287
| Summary: | qemu-kvm cannot boot RHEL 7 kernel with TCG, hangs at "Probing EDD (edd=off to disable)..." | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Lubos Kocman <lkocman> | |
| Component: | libguestfs | Assignee: | Richard W.M. Jones <rjones> | |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | |
| Severity: | high | Docs Contact: | ||
| Priority: | high | |||
| Version: | 7.4 | CC: | jsuchane, knoel, lkocman, lsedlar, mtessun, ngoldin, ptoscano, rbalakri, virt-maint, xchen, yoguo | |
| Target Milestone: | rc | Keywords: | Reopened, ZStream | |
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | libguestfs-1.36.1-1.el7 | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1406393 (view as bug list) | Environment: | ||
| Last Closed: | 2017-08-01 22:11:26 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | 1359086 | |||
| Bug Blocks: | 1406393 | |||
|
Description
Lubos Kocman
2016-12-13 14:31:35 UTC
The "Probing EDD" message comes from the kernel, but very early on. FWIW the next message (also from the kernel) should be: \x1b[2J[ 0.000000] Initializing cgroup subsys cpuset So, this is a kernel bug. Which kernel is this? I tested kernel-3.10.0-514.el7.x86_64 and that WFM. You can also rm -rf /var/tmp/.guestfs-* which will cause libguestfs to rebuild the appliance cache using the latest (highest version) kernel in /boot. If you have a weird kernel installed as the latest kernel in /boot then you can change how supermin picks the kernel by setting the SUPERMIN_KERNEL and SUPERMIN_MODULES environment variables (http://libguestfs.org/supermin.1.html). Can't reproduce it either using kernel-3.10.0-327.el7.x86_64 & libguestfs-1.32.7-3.el7.x86_64. Quality Engineering Management has reviewed and declined this request. You may appeal this decision by reopening this request. [root@rcm-compose-nightly-01 lkocman]# uname -r 3.10.0-514.el7.x86_64 [root@rcm-compose-nightly-01 tmp]# mkdir /tmp/whatever mkdir: cannot create directory '/tmp/whatever': File exists [root@rcm-compose-nightly-01 tmp]# rm -rf /tmp/whatever [root@rcm-compose-nightly-01 tmp]# mkdir /tmp/whatever [root@rcm-compose-nightly-01 tmp]# curl -L -O http://download.lab.bos.redhat.com/devel/lkocman/efiboot.img % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 252 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0 100 5396k 100 5396k 0 0 11.1M 0 --:--:-- --:--:-- --:--:-- 17.5M [root@rcm-compose-nightly-01 tmp]# LIBGUESTFS_BACKEND=direct guestmount -a efiboot.img -m /dev/sda /tmp/whatever -v libguestfs: launch: program=guestmount libguestfs: launch: version=1.32.7rhel=7,release=3.el7,libvirt libguestfs: launch: backend registered: unix libguestfs: launch: backend registered: uml libguestfs: launch: backend registered: libvirt libguestfs: launch: backend registered: direct libguestfs: launch: backend=direct libguestfs: launch: tmpdir=/tmp/libguestfs7hiTun libguestfs: launch: umask=0022 libguestfs: launch: euid=0 libguestfs: is_openable: /dev/kvm: No such file or directory libguestfs: begin building supermin appliance libguestfs: run supermin libguestfs: command: run: /usr/bin/supermin5 libguestfs: command: run: \ --build libguestfs: command: run: \ --verbose libguestfs: command: run: \ --if-newer libguestfs: command: run: \ --lock /var/tmp/.guestfs-0/lock libguestfs: command: run: \ --copy-kernel libguestfs: command: run: \ -f ext2 libguestfs: command: run: \ --host-cpu x86_64 libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d libguestfs: command: run: \ -o /var/tmp/.guestfs-0/appliance.d supermin: version: 5.1.16 supermin: rpm: detected RPM version 4.11 supermin: package handler: fedora/rpm supermin: acquiring lock on /var/tmp/.guestfs-0/lock supermin: build: /usr/lib64/guestfs/supermin.d supermin: reading the supermin appliance supermin: build: visiting /usr/lib64/guestfs/supermin.d/base.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/daemon.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/excludefiles type uncompressed excludefiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/hostfiles type uncompressed hostfiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/init.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/packages type uncompressed packages supermin: build: visiting /usr/lib64/guestfs/supermin.d/udev-rules.tar.gz type gzip base image (tar) supermin: mapping package names to installed packages supermin: resolving full list of package dependencies supermin: build: 198 packages, including dependencies supermin: build: 31785 files supermin: build: 8306 files, after matching excludefiles supermin: build: 8312 files, after adding hostfiles supermin: build: 8306 files, after removing unreadable files supermin: build: 8346 files, after munging supermin: kernel: picked kernel vmlinuz-3.10.0-514.el7.x86_64 supermin: kernel: picked modules path /lib/modules/3.10.0-514.el7.x86_64 supermin: kernel: kernel_version 3.10.0-514.el7.x86_64 supermin: kernel: modules /lib/modules/3.10.0-514.el7.x86_64 supermin: ext2: creating empty ext2 filesystem '/var/tmp/.guestfs-0/appliance.d.mf3nkaj9/root' supermin: ext2: populating from base image supermin: ext2: copying files from host filesystem supermin: ext2: copying kernel modules supermin: ext2: creating minimal initrd '/var/tmp/.guestfs-0/appliance.d.mf3nkaj9/initrd' supermin: ext2: wrote 31 modules to minimal initrd supermin: renaming /var/tmp/.guestfs-0/appliance.d.mf3nkaj9 to /var/tmp/.guestfs-0/appliance.d libguestfs: finished building supermin appliance libguestfs: begin testing qemu features libguestfs: command: run: /usr/libexec/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -help libguestfs: qemu version 1.5 libguestfs: command: run: /usr/libexec/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -machine accel=kvm:tcg libguestfs: command: run: \ -device ? libguestfs: finished testing qemu features libguestfs: command: run: dmesg | grep -Eoh 'lpj=[[:digit:]]+' libguestfs: read_lpj_from_dmesg: calculated lpj=2499998 [28106ms] /usr/libexec/qemu-kvm \ -global virtio-blk-pci.scsi=off \ -nodefconfig \ -enable-fips \ -nodefaults \ -display none \ -machine accel=kvm:tcg \ -m 500 \ -no-reboot \ -rtc driftfix=slew \ -no-hpet \ -global kvm-pit.lost_tick_policy=discard \ -kernel /var/tmp/.guestfs-0/appliance.d/kernel \ -initrd /var/tmp/.guestfs-0/appliance.d/initrd \ -object rng-random,filename=/dev/urandom,id=rng0 \ -device virtio-rng-pci,rng=rng0 \ -device virtio-scsi-pci,id=scsi \ -drive file=/tmp/efiboot.img,cache=writeback,id=hd0,if=none \ -device scsi-hd,drive=hd0 \ -drive file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw \ -device scsi-hd,drive=appliance \ -device virtio-serial-pci \ -serial stdio \ -device sga \ -chardev socket,path=/tmp/libguestfs7hiTun/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -append 'panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=2499998 printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color' Could not access KVM kernel module: No such file or directory failed to initialize KVM: No such file or directory Back to tcg accelerator. libguestfs: responding to serial console Device Status Report \x1b[1;256r\x1b[256;256H\x1b[6n Google, Inc. Serial Graphics Adapter 12/29/13 SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mockbuild@) Sun Dec 29 03:43:06 UTC 2013 Term: 80x24 4 0 SeaBIOS (version 1.9.1-5.el7) Booting from ROM... Probing EDD (edd=off to disable)... In fact I *can* reproduce it. However it only happens inside a nested guest on an Intel host (not on an AMD host as I was using before). So it's either TCG or a kernel bug. kernel-3.10.0-514.el7.x86_64 qemu-kvm-1.5.3-126.el7.x86_64 I notice that both of us are using qemu-kvm 1.5 (ie. the ancient version). I didn't try qemu-kvm-rhev yet, but that has a different TCG implementation so it might be worth trying. Yes it works fine with qemu-kvm-rhev-2.6.0-28.el7_3.2.x86_64 So it's a qemu-kvm TCG bug. Note that we don't really support TCG at all, but I'll try to see if it's something obvious. Weirdly this only happens when you attach a virtio-scsi device. This command works: # /usr/libexec/qemu-kvm -nodefconfig -nodefaults -display none -m 500 -no-reboot -machine accel=kvm:tcg -kernel /boot/vmlinuz-3.10.0-514.el7.x86_64 -append "panic=1 console=ttyS0" -device sga -serial stdio This command fails (the reproducer): # truncate -s 1G /var/tmp/empty # /usr/libexec/qemu-kvm -nodefconfig -nodefaults -display none -m 500 -no-reboot -machine accel=kvm:tcg -kernel /boot/vmlinuz-3.10.0-514.el7.x86_64 -append "panic=1 console=ttyS0" -device virtio-scsi-pci,id=scsi -drive file=/var/tmp/empty,cache=writeback,id=hd0,if=none -device scsi-hd,drive=hd0 -device sga -serial stdio Another workaround is to disable EDD (as indeed it says in the kernel message). export LIBGUESTFS_APPEND="edd=off" This works even with qemu-kvm 1.5.3. Here too on a centos 7.3 VM: [root@localhost ~]# guestfish get-backend direct [root@localhost ~]# rpm -qa | grep qemu qemu-kvm-common-1.5.3-126.el7.x86_64 qemu-kvm-1.5.3-126.el7.x86_64 qemu-img-1.5.3-126.el7.x86_64 libvirt-daemon-driver-qemu-2.0.0-10.el7_3.2.x86_64 ipxe-roms-qemu-20160127-5.git6366fa7a.el7.noarch [root@localhost ~]# uname -r 3.10.0-514.el7.x86_64 [root@localhost ~]# cat /etc/*release* CentOS Linux release 7.3.1611 (Core) Derived from Red Hat Enterprise Linux 7.3 (Source) NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" CentOS Linux release 7.3.1611 (Core) CentOS Linux release 7.3.1611 (Core) cpe:/o:centos:centos:7 [root@localhost ~]# libguestfs-test-tool ************************************************************ * IMPORTANT NOTICE * * When reporting bugs, include the COMPLETE, UNEDITED * output below in your bug report. * ************************************************************ LIBGUESTFS_BACKEND=direct PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin SELinux: Enforcing guestfs_get_append: (null) guestfs_get_autosync: 1 guestfs_get_backend: direct guestfs_get_backend_settings: [] guestfs_get_cachedir: /var/tmp guestfs_get_direct: 0 guestfs_get_hv: /usr/libexec/qemu-kvm guestfs_get_memsize: 500 guestfs_get_network: 0 guestfs_get_path: /usr/lib64/guestfs guestfs_get_pgroup: 0 guestfs_get_program: libguestfs-test-tool guestfs_get_recovery_proc: 1 guestfs_get_smp: 1 guestfs_get_tmpdir: /tmp guestfs_get_trace: 0 guestfs_get_verbose: 1 host_cpu: x86_64 Launching appliance, timeout set to 600 seconds. libguestfs: launch: program=libguestfs-test-tool libguestfs: launch: version=1.32.7rhel=7,release=3.el7.centos,libvirt libguestfs: launch: backend registered: unix libguestfs: launch: backend registered: uml libguestfs: launch: backend registered: libvirt libguestfs: launch: backend registered: direct libguestfs: launch: backend=direct libguestfs: launch: tmpdir=/tmp/libguestfsXEVTPF libguestfs: launch: umask=0022 libguestfs: launch: euid=0 libguestfs: is_openable: /dev/kvm: No such file or directory libguestfs: begin building supermin appliance libguestfs: run supermin libguestfs: command: run: /usr/bin/supermin5 libguestfs: command: run: \ --build libguestfs: command: run: \ --verbose libguestfs: command: run: \ --if-newer libguestfs: command: run: \ --lock /var/tmp/.guestfs-0/lock libguestfs: command: run: \ --copy-kernel libguestfs: command: run: \ -f ext2 libguestfs: command: run: \ --host-cpu x86_64 libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d libguestfs: command: run: \ -o /var/tmp/.guestfs-0/appliance.d supermin: version: 5.1.16 supermin: rpm: detected RPM version 4.11 supermin: package handler: fedora/rpm supermin: acquiring lock on /var/tmp/.guestfs-0/lock supermin: if-newer: output does not need rebuilding libguestfs: finished building supermin appliance libguestfs: begin testing qemu features libguestfs: command: run: /usr/libexec/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -help libguestfs: qemu version 1.5 libguestfs: command: run: /usr/libexec/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -machine accel=kvm:tcg libguestfs: command: run: \ -device ? libguestfs: finished testing qemu features libguestfs: command: run: dmesg | grep -Eoh 'lpj=[[:digit:]]+' libguestfs: read_lpj_from_dmesg: calculated lpj=2808018 [00174ms] /usr/libexec/qemu-kvm \ -global virtio-blk-pci.scsi=off \ -nodefconfig \ -enable-fips \ -nodefaults \ -display none \ -machine accel=kvm:tcg \ -m 500 \ -no-reboot \ -rtc driftfix=slew \ -no-hpet \ -global kvm-pit.lost_tick_policy=discard \ -kernel /var/tmp/.guestfs-0/appliance.d/kernel \ -initrd /var/tmp/.guestfs-0/appliance.d/initrd \ -object rng-random,filename=/dev/urandom,id=rng0 \ -device virtio-rng-pci,rng=rng0 \ -device virtio-scsi-pci,id=scsi \ -drive file=/tmp/libguestfsXEVTPF/scratch.1,cache=unsafe,format=raw,id=hd0,if=none \ -device scsi-hd,drive=hd0 \ -drive file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw \ -device scsi-hd,drive=appliance \ -device virtio-serial-pci \ -serial stdio \ -device sga \ -chardev socket,path=/tmp/libguestfsXEVTPF/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -append 'panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=2808018 printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color' Could not access KVM kernel module: No such file or directory failed to initialize KVM: No such file or directory Back to tcg accelerator. libguestfs: responding to serial console Device Status Report \x1b[1;256r\x1b[256;256H\x1b[6n Google, Inc. Serial Graphics Adapter 06/09/14 SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mockbuild@) Mon Jun 9 21:33:48 UTC 2014 Term: 80x24 4 0 SeaBIOS (version 1.9.1-5.el7) Booting from ROM... Probing EDD (edd=off to disable)... Patch posted: https://www.redhat.com/archives/libguestfs/2016-December/msg00147.html Jarda, this bug is also a candidate for RHEL 7.3 z-stream. Could you please add the flag for us? NB: This is a bug in qemu-kvm, but as it is easily worked around in libguestfs I am moving the bug back to libguestfs. I can reproduce it now with the following pacakges： libguestfs-1.32.7-3.el7.x86_64 qemu-kvm-1.5.3-126.el7.x86_64 Steps: 1. Prepare an rhel7 guest image on an Intel host (not on an AMD host),boot it. 2. In the guest vm： Update the qemu-kvm version to ： qemu-kvm-1.5.3-126.el7.x86_64 Install libguestfs： libguestfs-1.32.7-3.el7.x86_64 3. # mkdir /tmp/whatever # cd /tmp # curl -L -O http://download.lab.bos.redhat.com/devel/lkocman/efiboot.img # LIBGUESTFS_BACKEND=direct guestmount -a efiboot.img -m /dev/sda /tmp/whatever -v libguestfs: launch: program=guestmount libguestfs: launch: version=1.32.7rhel=7,release=3.el7,libvirt libguestfs: launch: backend registered: unix libguestfs: launch: backend registered: uml libguestfs: launch: backend registered: libvirt libguestfs: launch: backend registered: direct libguestfs: launch: backend=direct libguestfs: launch: tmpdir=/tmp/libguestfs34su5t libguestfs: launch: umask=0022 libguestfs: launch: euid=0 libguestfs: is_openable: /dev/kvm: No such file or directory libguestfs: begin building supermin appliance libguestfs: run supermin libguestfs: command: run: /usr/bin/supermin5 libguestfs: command: run: \ --build libguestfs: command: run: \ --verbose libguestfs: command: run: \ --if-newer libguestfs: command: run: \ --lock /var/tmp/.guestfs-0/lock libguestfs: command: run: \ --copy-kernel libguestfs: command: run: \ -f ext2 libguestfs: command: run: \ --host-cpu x86_64 libguestfs: command: run: \ /usr/lib64/guestfs/supermin.d libguestfs: command: run: \ -o /var/tmp/.guestfs-0/appliance.d supermin: version: 5.1.16 supermin: rpm: detected RPM version 4.11 supermin: package handler: fedora/rpm supermin: acquiring lock on /var/tmp/.guestfs-0/lock supermin: build: /usr/lib64/guestfs/supermin.d supermin: reading the supermin appliance supermin: build: visiting /usr/lib64/guestfs/supermin.d/base.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/daemon.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/excludefiles type uncompressed excludefiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/hostfiles type uncompressed hostfiles supermin: build: visiting /usr/lib64/guestfs/supermin.d/init.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/packages type uncompressed packages supermin: build: visiting /usr/lib64/guestfs/supermin.d/udev-rules.tar.gz type gzip base image (tar) supermin: build: visiting /usr/lib64/guestfs/supermin.d/zz-packages-xfs type uncompressed packages supermin: build: visiting /usr/lib64/guestfs/supermin.d/zz-winsupport.tar.gz type gzip base image (tar) supermin: mapping package names to installed packages supermin: resolving full list of package dependencies supermin: build: 204 packages, including dependencies supermin: build: 31367 files supermin: build: 8331 files, after matching excludefiles supermin: build: 8340 files, after adding hostfiles supermin: build: 8334 files, after removing unreadable files supermin: build: 8375 files, after munging supermin: kernel: picked kernel vmlinuz-3.10.0-327.el7.x86_64 supermin: kernel: picked modules path /lib/modules/3.10.0-327.el7.x86_64 supermin: kernel: kernel_version 3.10.0-327.el7.x86_64 supermin: kernel: modules /lib/modules/3.10.0-327.el7.x86_64 supermin: ext2: creating empty ext2 filesystem '/var/tmp/.guestfs-0/appliance.d.85hibdfj/root' supermin: ext2: populating from base image supermin: ext2: copying files from host filesystem supermin: ext2: copying kernel modules supermin: ext2: creating minimal initrd '/var/tmp/.guestfs-0/appliance.d.85hibdfj/initrd' supermin: ext2: wrote 27 modules to minimal initrd supermin: renaming /var/tmp/.guestfs-0/appliance.d.85hibdfj to /var/tmp/.guestfs-0/appliance.d libguestfs: finished building supermin appliance libguestfs: begin testing qemu features libguestfs: command: run: /usr/libexec/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -help libguestfs: qemu version 1.5 libguestfs: command: run: /usr/libexec/qemu-kvm libguestfs: command: run: \ -display none libguestfs: command: run: \ -machine accel=kvm:tcg libguestfs: command: run: \ -device ? libguestfs: finished testing qemu features libguestfs: command: run: dmesg | grep -Eoh 'lpj=[[:digit:]]+' libguestfs: read_lpj_from_dmesg: calculated lpj=2666664 [33163ms] /usr/libexec/qemu-kvm \ -global virtio-blk-pci.scsi=off \ -nodefconfig \ -enable-fips \ -nodefaults \ -display none \ -machine accel=kvm:tcg \ -m 500 \ -no-reboot \ -rtc driftfix=slew \ -no-hpet \ -global kvm-pit.lost_tick_policy=discard \ -kernel /var/tmp/.guestfs-0/appliance.d/kernel \ -initrd /var/tmp/.guestfs-0/appliance.d/initrd \ -object rng-random,filename=/dev/urandom,id=rng0 \ -device virtio-rng-pci,rng=rng0 \ -device virtio-scsi-pci,id=scsi \ -drive file=/tmp/efiboot.img,cache=writeback,id=hd0,if=none \ -device scsi-hd,drive=hd0 \ -drive file=/var/tmp/.guestfs-0/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw \ -device scsi-hd,drive=appliance \ -device virtio-serial-pci \ -serial stdio \ -device sga \ -chardev socket,path=/tmp/libguestfs34su5t/guestfsd.sock,id=channel0 \ -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ -append 'panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check lpj=2666664 printk.time=1 cgroup_disable=memory usbcore.nousb cryptomgr.notests 8250.nr_uarts=1 root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=xterm-256color' Could not access KVM kernel module: No such file or directory failed to initialize KVM: No such file or directory Back to tcg accelerator. libguestfs: responding to serial console Device Status Report \x1b[1;256r\x1b[256;256H\x1b[6n Google, Inc. Serial Graphics Adapter 12/29/13 SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mockbuild@) Sun Dec 29 03:43:06 UTC 2013 Term: 80x24 4 0 SeaBIOS (version seabios-1.7.5-11.el7) Booting from ROM... Probing EDD (edd=off to disable)... ok Verified with packages: libguestfs-1.36.3-1.el7.x86_64 qemu-kvm-1.5.3-126.el7.x86_64 (and qemu-kvm-1.5.3-134.el7.x86_64) Steps: 1. cd /tmp 2. mkdir -p /tmp/whatever 3. curl -L -O http://download.lab.bos.redhat.com/devel/lkocman/efiboot.img 4. LIBGUESTFS_BACKEND=direct guestmount -a efiboot.img -m /dev/sda /tmp/whatever Actual results: The last command can be executed successfully. So verified. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2017:2023 |