=encoding utf8 =head1 NAME virt-filesystems - List filesystems, partitions, block devices, LVM in a virtual machine or disk image =head1 SYNOPSIS virt-filesystems [--options] -d domname virt-filesystems [--options] -a disk.img [-a disk.img ...] =head1 DESCRIPTION This tool allows you to discover filesystems, partitions, logical volumes, and their sizes in a disk image or virtual machine. It is a replacement for L and L. One use for this tool is from shell scripts to iterate over all filesystems from a disk image: for fs in $(virt-filesystems -a disk.img); do # ... done Another use is to list partitions before using another tool to modify those partitions (such as L). If you are curious about what an unknown disk image contains, use this tool along with L. Various command line options control what this program displays. You need to give either I<-a> or I<-d> options to specify the disk image or libvirt guest respectively. If you just specify that then the program shows filesystems found, one per line, like this: $ virt-filesystems -a disk.img /dev/sda1 /dev/vg_guest/lv_root If you add I<-l> or I<--long> then the output includes extra information: $ virt-filesystems -a disk.img -l Name Type VFS Label Size /dev/sda1 filesystem ext4 boot 524288000 /dev/vg_guest/lv_root filesystem ext4 root 10212081664 If you add I<--extra> then non-mountable (swap, unknown) filesystems are shown as well: $ virt-filesystems -a disk.img --extra /dev/sda1 /dev/vg_guest/lv_root /dev/vg_guest/lv_swap /dev/vg_guest/lv_data If you add I<--partitions> then partitions are shown instead of filesystems: $ virt-filesystems -a disk.img --partitions /dev/sda1 /dev/sda2 Similarly you can use I<--logical-volumes>, I<--volume-groups>, I<--physical-volumes>, I<--block-devices> to list those items. You can use these options in combination as well (if you want a combination including filesystems, you have to add I<--filesystems>). Notice that some items fall into several categories (eg. C might be both a partition and a filesystem). These items are listed several times. To get a list which includes absolutely everything that virt-filesystems knows about, use the I<--all> option. UUIDs (because they are quite long) are not shown by default. Add the I<--uuid> option to display device and filesystem UUIDs in the long output. I<--all --long --uuid> is a useful combination to display all possible information about everything. $ virt-filesystems -a win.img --all --long --uuid -h Name Type VFS Label Size Parent UUID /dev/sda1 filesystem ntfs System Reserved 100M - F81C92571C92112C /dev/sda2 filesystem ntfs - 20G - F2E8996AE8992E3B /dev/sda1 partition - - 100M /dev/sda - /dev/sda2 partition - - 20G /dev/sda - /dev/sda device - - 20G - - For machine-readable output, use I<--csv> to get Comma-Separated Values. =head1 OPTIONS =over 4 =item B<--help> Display brief help. =item B<-a> file =item B<--add> file Add I which should be a disk image from a virtual machine. If the virtual machine has multiple block devices, you must supply all of them with separate I<-a> options. The format of the disk image is auto-detected. To override this and force a particular format use the I<--format=..> option. =item B<--all> Display everything. This is currently the same as specifying these options: I<--filesystems>, I<--extra>, I<--partitions>, I<--block-devices>, I<--logical-volumes>, I<--volume-groups>, I<--physical-volumes>. (More may be added to this list in future). See also I<--long>. =item B<--blkdevs> =item B<--block-devices> Display block devices. =item B<-c> URI =item B<--connect> URI If using libvirt, connect to the given I. If omitted, then we connect to the default libvirt hypervisor. If you specify guest block devices directly (I<-a>), then libvirt is not used at all. =item B<--csv> Write out the results in CSV format (comma-separated values). This format can be imported easily into databases and spreadsheets, but read L below. =item B<-d> guest =item B<--domain> guest Add all the disks from the named libvirt guest. Domain UUIDs can be used instead of names. =item B<--echo-keys> When prompting for keys and passphrases, virt-filesystems normally turns echoing off so you cannot see what you are typing. If you are not worried about Tempest attacks and there is no one else in the room you can specify this flag to see what you are typing. =item B<--extra> This causes filesystems that are not ordinary, mountable filesystems to be displayed. This category includes swapspace, and filesystems that are empty or contain unknown data. This option implies I<--filesystems>. =item B<--filesystems> Display mountable filesystems. If no display option was selected then this option is implied. With I<--extra>, non-mountable filesystems are shown too. =item B<--format=raw|qcow2|..> =item B<--format> The default for the I<-a> option is to auto-detect the format of the disk image. Using this forces the disk format for I<-a> options which follow on the command line. Using I<--format> with no argument switches back to auto-detection for subsequent I<-a> options. For example: virt-filesystems --format=raw -a disk.img forces raw format (no auto-detection) for C. virt-filesystems --format=raw -a disk.img --format -a another.img forces raw format (no auto-detection) for C and reverts to auto-detection for C. If you have untrusted raw-format guest disk images, you should use this option to specify the disk format. This avoids a possible security problem with malicious guests (CVE-2010-3851). =item B<-h> =item B<--human-readable> In I<--long> mode, display sizes in human-readable format. =item B<--keys-from-stdin> Read key or passphrase parameters from stdin. The default is to try to read passphrases from the user by opening C. =item B<-l> =item B<--long> Display extra columns of data ("long format"). A title row is added unless you also specify I<--no-title>. The extra columns displayed depend on what output you select, and the ordering of columns may change in future versions. Use the title row, I<--csv> output and/or L to match columns to data in external programs. Use I<-h> if you want sizes to be displayed in human-readable format. The default is to show raw numbers of I. Use I<--uuid> to display UUIDs too. =item B<--lvs> =item B<--logvols> =item B<--logical-volumes> Display LVM logical volumes. In this mode, these are displayed irrespective of whether the LVs contain filesystems. =item B<--no-title> In I<--long> mode, don't add a title row. Note that the order of the columns is not fixed, and may change in future versions of virt-filesystems, so using this option may give you unexpected surprises. =item B<--parts> =item B<--partitions> Display partitions. In this mode, these are displayed irrespective of whether the partitions contain filesystems. =item B<--pvs> =item B<--physvols> =item B<--physical-volumes> Display LVM physical volumes. =item B<--uuid> =item B<--uuids> In I<--long> mode, display UUIDs as well. =item B<-v> =item B<--verbose> Enable verbose messages for debugging. =item B<-V> =item B<--version> Display version number and exit. =item B<--vgs> =item B<--volgroups> =item B<--volume-groups> Display LVM volume groups. =item B<-x> Enable tracing of libguestfs API calls. =back =head1 COLUMNS Note that columns in the output are subject to reordering and change in future versions of this tool. =over 4 =item B The filesystem, partition, block device or LVM name. For device and partition names these are displayed as canonical libguestfs names, so that for example C is the second partition on the first device. If the I<--long> option is B specified, then only the name column is shown in the output. =item B The object type, for example C, C, C etc. =item B If there is a filesystem, then this column displays the filesystem type if one could be detected, eg. C. =item B