csdiagnose(1) [mojave man page]
csdiagnose(1) BSD General Commands Manual csdiagnose(1) NAME
csdiagnose -- collect information needed to diagnose CoreStorage volumes SYNOPSIS
csdiagnose [-f path] [-h] [-v] [dev ...] DESCRIPTION
csdiagnose collects information to help Apple investigate issues related to CoreStorage (File Vault 2, Fusion Drive, File Vault Everywhere, etc). This tool invokes sudo, so you will be asked to authenticate. This script requires csgather(1) to be installed in the PATH. If dev is not given, all disks in the system will be inspected. This is the recommended method of invoking csdiagnose. Advanced users can provide a list of dev in the form of disk1 or disk1s2. Only information of the given dev is collected. To fully collect information of a CoreStorage volume, the CoreStorage Physical Volume (i.e., the Apple_CoreStorage partition), the Apple_Boot partition after the physical volume, and the Logical Volume published by CoreStorage (which can be found out using the "diskutil cs list" command) should all be provided on the command line. The following information is collected: 1. OS version. 2. system logs, kernel logs, install logs, filesystem logs, and other useful information for CoreStorage debugging from /var/log. 3. output of "diskutil list". 4. output of "diskutil cs list". 5. output of "mount -t hfs". 6. "csgather -G" of every Apple_CoreStorage partition, which includes the CoreStorage metadata. If a list of dev is provided, only information on the partitions included in the list will be collected. 7. EncryptedRoot.plist of every Apple_Boot partition. If a list of dev is provided, only information on the partitions included in the list will be collected. 8. timestamps of the files relevant to kextcache/kextd. The following user information is contained in the collected file: 1. Number and types of disks attached to the system. 2. The volume names, UUIDs, and size of each partition. 3. Encrypted versions of the volume key(s) that unlock the encrypted disk(s) attached to the system. Refer to csgather(1) for what information could leak from the volume key(s). 4. User names, pictures, and password hints for the users. No other user information (such as directory structures, file names, file content, etc) is collected. The following options are available: -h Show this help information. -f path Specify an output path which will hold the file generated by this script. By default this will be the user's Desktop folder. The given path must already exist. -v Verbose mode, which prints every command it invokes. SEE ALSO
csgather(1), sysdiagnose(1) HISTORY
The csdiagnose utility first appeared along with CoreStorage in OS X 10.10.0. OS X
May 31, 2019 OS X
Check Out this Related Man Page
HFORMAT(1) General Commands Manual HFORMAT(1) NAME
hformat - create a new HFS filesystem and make it current SYNOPSIS
hformat [-f] [-l label] destination-path [partition-no] DESCRIPTION
hformat is used to write a new HFS filesystem to a volume. A UNIX pathname to the volume's destination must be specified. The destination may be either a block device or a regular file, but it must already exist and be writable. An optional label can be specified to name the volume. The name must be between 1-27 characters and cannot contain a colon (:). By default, the volume will be named Untitled. If the destination medium is partitioned, one partition must be selected to receive the filesystem. If there is only one HFS partition on the medium, it will be selected by default. Otherwise, the desired partition number must be specified (as the ordinal nth HFS partition) on the command-line. The size of the partition determines the size of the resulting volume. Partition number 0 can be specified to format the entire medium as a single filesystem without a partition map, erasing any existing parti- tion information. Since this will destroy all the partitions, the -f option must be specified to force this operation if the medium cur- rently contains a partition map. If the medium is not partitioned (or if partition 0 is specified), the size or capacity of the medium determines the size of the resulting volume. The new volume will be empty and will become "current" so subsequent commands will refer to it. The current working directory for the vol- ume is set to the root of the volume. EXAMPLES
% hformat /dev/fd0 If a floppy disk is available as /dev/fd0, this formats the disk as an HFS volume named Untitled. (N.B. The floppy must already have received a low-level format by other means.) % dd if=/dev/zero of=disk.hfs bs=1k count=800 % hformat -l "Test Disk" disk.hfs This sequence creates an 800K HFS volume image in the file disk.hfs in the current directory, and names it Test Disk. % hformat -l "Loma Prieta" /dev/sd2 1 If a SCSI disk is available as /dev/sd2, this initializes the first HFS partition on the disk (which must already exist) with a new filesystem, naming the resulting volume Loma Prieta. % hformat -f /dev/sd2 0 This causes the medium accessible as /dev/sd2 to be reformatted as a single HFS volume, ignoring and erasing any existing partition information on the medium. The -f option must be specified if the medium is currently partitioned; otherwise the command will fail. NOTES
This command does not create or alter partition maps, although it can erase them (as described above). Any partition number specified on the command line must already exist. The smallest volume size which can be formatted with hformat is 800K. SEE ALSO
hfsutils(1), hmount(1) FILES
$HOME/.hcwd AUTHOR
Robert Leslie <rob@mars.org> HFSUTILS
08-Nov-1997 HFORMAT(1)