Red Hat Bugzilla – Bug 668611
guestfish -i is trying to mount all mounts from /etc/fstab and fails with an error when device doesn't exists
Last modified: 2015-09-27 22:23:56 EDT
+++ This bug was initially created as a clone of Bug #668574 +++ Description of problem: If a device from /etc/fstab doesn't exists - guestfish -i fails to load. /etc/fstab content: LABEL=/ / ext4 defaults 1 1 /dev/xvdb /mnt ext3 defaults 0 0 /dev/xvdc /data ext3 defaults 0 0 none /dev/pts devpts gid=5,mode=620 0 0 none /dev/shm tmpfs defaults 0 0 none /proc proc defaults 0 0 none /sys sysfs defaults 0 0 If I remove /dev/xvd* mount points from above /etc/fstab file the image gets mounted as expected with -i switch. Version-Release number of selected component (if applicable): guestfish-1.8.0-1.fc14.x86_64 Guest is RHEL 6. How reproducible: Always with additional devices in /etc/fstab Steps to Reproduce: 1. Add some mount point to /etc/fstab 2. run guestfish -i image Actual results: $ guestfish -x -i rhel-basic.ec2 add_drive_opts "rhel-basic.ec2" = 0 is_config = 1 launch = 0 list_partitions = [""] inspect_osumount_all = 0 list_devices = ["/dev/vda"] vfs_type "/dev/vda" = "ext4" mount_ro "/dev/vda" "/" = 0 is_dir "/etc" = 1 is_dir "/bin" = 1 is_dir "/share" = 0 is_file "/grub/menu.lst" = 0 is_file "/grub/grub.conf" = 0 is_file "/etc/freebsd-update.conf" = 0 is_file "/etc/fstab" = 1 exists "/etc/lsb-release" = 0 exists "/etc/redhat-release" = 1 filesize "/etc/redhat-release" = 55 head_n 1 "/etc/redhat-release" = ["Red Hat Enterprise Linux Server release 6.0 (Santiago)"] is_file "/bin/bash" = 1 file_architecture "/bin/bash"file "/bin/bash" = "ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped" = "x86_64" filesize "/etc/fstab" = 354 aug_init "/" 48 = 0 aug_rm "/augeas/load//incl[. != "/etc/fstab"]" = 158 aug_load = 0 aug_ls "/files/etc/fstab" = ["/files/etc/fstab/1", "/files/etc/fstab/2", "/files/etc/fstab/3", "/files/etc/fstab/4", "/files/etc/fstab/5", "/files/etc/fstab/6", "/files/etc/fstab/7"] aug_get "/files/etc/fstab/1/spec" = "LABEL=/" aug_get "/files/etc/fstab/1/file" = "/" findfs_label "/" = "/dev/vda" aug_get "/files/etc/fstab/2/spec" = "/dev/xvdb" aug_get "/files/etc/fstab/2/file" = "/mnt" list_devices = ["/dev/vda"] aug_get "/files/etc/fstab/3/spec" = "/dev/xvdc" aug_get "/files/etc/fstab/3/file" = "/data" list_devices = ["/dev/vda"] aug_get "/files/etc/fstab/4/spec" = "none" aug_get "/files/etc/fstab/4/file" = "/dev/pts" aug_get "/files/etc/fstab/5/spec" = "none" aug_get "/files/etc/fstab/5/file" = "/dev/shm" aug_get "/files/etc/fstab/6/spec" = "none" aug_get "/files/etc/fstab/6/file" = "/proc" aug_get "/files/etc/fstab/7/spec" = "none" aug_get "/files/etc/fstab/7/file" = "/sys" aug_close = 0 is_file "/etc/HOSTNAME" = 0 is_file "/etc/hostname" = 0 is_file "/etc/sysconfig/network" = 1 filesize "/etc/sysconfig/network" = 65 aug_init "/" 48 = 0 aug_rm "/augeas/load//incl[. != "/etc/sysconfig/network"]" = 158 aug_load = 0 aug_get "/files/etc/sysconfig/network/HOSTNAME" = "localhost.localdomain" aug_close = 0 umount_all = 0 list_partitions = [""] available "lvm2" = 0 lvs = [""] = ["/dev/vda"] inspect_get_mountpoints "/dev/vda" = ["/", "/dev/vda", "/mnt", "/dev/xvdb", "/data", "/dev/xvdc"] mount_options "" "/dev/vda" "/" = 0 mount_options "" "/dev/xvdb" "/mnt" = -1 (error) libguestfs: error: mount_options: mount_options_stub: /dev/xvdb: No such file or directory umount_all = 0 sync = 0 kill_subprocess = 0 Expected results: Image gets mounted. --- Additional comment from rjones@redhat.com on 2011-01-10 16:52:43 EST --- This appears to be a bug between the inspection code and guestfish. The inspection code is returning the bogus mountpoints, and guestfish is trying to mount them and failing. Bug also exists in RHEL 6.1, so cloning.
For a test case, see: https://bugzilla.redhat.com/show_bug.cgi?id=668574#c2
http://brewweb.devel.redhat.com/brew/taskinfo?taskID=3022693
QA verified this bug with libguestfs-1.7.17-12.el6.x86_64 and guestfish-1.7.17-12.el6.x86_64: Using the image file from https://bugzilla.redhat.com/show_bug.cgi?id=668574#c2: # guestfish -a bogus.img -i --ro libguestfs: error: mount_ro: mount_ro_stub: /dev/sdb3: No such file or directory libguestfs: error: mount_ro: /dev/VG/LV1 on /nosuchfile: mount: mount point /sysroot/nosuchfile does not exist guestfish: some filesystems could not be mounted (ignored) Welcome to guestfish, the libguestfs filesystem interactive shell for editing virtual machine filesystems. Type: 'help' for help on commands 'man' to read the manual 'quit' to quit the shell Operating system: Fedora release 14 (Phony) /dev/VG/Root mounted on / /dev/vda1 mounted on /boot /dev/VG/LV1 mounted on /nosuchfile /dev/sdb3 mounted on /var ><fs> So change this bug to VERIFIED.
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: When a device in /etc/fstab did not exist, the "guestfish -i" command failed with a "No such file or directory" error. In the event of missing devices, guestfish now completes, and reports that some file systems could not be mounted. Note that this bug was reported and corrected during development. It was not seen in production systems in the field.
This is fine, thanks.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0586.html