Section 8: administration and privileged commands
sftp-server – SFTP server subsystem Synopsis sftp-server -words [-ehR ] [-d start_directory ] [-f log_facility ] [-l log_level ] [-P blacklisted_requests ] [-p whitelisted_requests ] [-u umask ] [-m force_file_perms ] sftp-server –Q protocol_feature Description sftp-server is a program that speaks the server side of SFTP protocol to stdout and expects client requests from stdin….
gsexec – Switch user before executing external programs Synopsis gsexec [-V] Summary gsexec is used by the Apache HTTP Server to switch to another user before executing CGI programs. In order to achieve this, it must run as root. Since the HTTP daemon normally doesn’t run as root, the gsexec executable needs the…
grubby – command line tool used to configure bootloader menu entries across multiple architectures Synopsis grubby [OPTIONS] Description General Information grubby is a command line tool for updating and displaying information about the configuration files for various architecture specific bootloaders. It is primarily designed to be used from scripts which install new kernels and need…
grub-sparc64-setup — Set up a device to boot a sparc64 GRUB image. Synopsis grub-sparc64-setup [OPTIONS]. Description You should not normally run this program directly. Use grub-install instead. See Also info grub
grub-setpassword — Generate the user.cfg file containing the hashed grub bootloader password. Synopsis grub-setpassword [OPTION] Description grub-setpassword outputs the user.cfg file which contains the hashed GRUB bootloader password. This utility only supports configurations where there is a single root user. The file has the format: GRUB2_PASSWORD=<hashed password>. Options -h, –help Display program usage and exit….
grub-set-default — Set the default boot menu entry for GRUB. Synopsis grub-set-default [–boot-directory=DIR] MENU_ENTRY Description grub-set-default sets the default boot menu entry for all subsequent boots. This command only works for GRUB configuration files created with GRUB_DEFAULT=saved in /etc/default/grub. Options –boot-directory=DIR Find GRUB images under DIR/grub. The default value is /boot, resulting in grub images…
grub-rpm-sort — Sort input according to RPM version compare. Synopsis grub-rpm-sort [OPTIONS]. Description You should not normally run this program directly. Use grub-mkconfig instead. See Also info grub
grub-reboot — Set the default boot menu entry for the next boot only. Synopsis grub-reboot [–boot-directory=DIR] MENU_ENTRY Description grub-reboot sets the default boot menu entry for the next boot, but not further boots after that. This command only works for GRUB configuration files created with GRUB_DEFAULT=saved in /etc/default/grub. Options –boot-directory=DIR Find GRUB images under DIR/grub….
grub-probe — Probe device information for a given path. Synopsis grub-probe ce [-m | –device-map=FILE] [-t | –target=(fs|fs_uuid|fs_label|drive|device|partmap| abstraction|cryptodisk_uuid| msdos_parttype)] [-v | –verbose] (PATH|DEVICE) Description grub-probe probes a path or device for filesystem and related information. Options –device Final option represents a DEVICE, rather than a filesystem PATH. –device-map=FILE Use FILE as the device map….
grub-ofpathname — Generate an IEEE-1275 device path for a specified device. Synopsis grub-ofpathname DEVICE Description grub-ofpathname generates an IEEE-1275 device path for the specified DEVICE. See Also info grub
grub-mkconfig — Generate a GRUB configuration file. Synopsis grub-mkconfig [-o | –output=FILE] Description grub-mkconfig generates a configuration file for GRUB. Options –output=FILE Write generated output to FILE. See Also info grub
grub-macbless — Mac-style bless utility for HFS or HFS+ Synopsis grub-macbless [-p | –ppc] [-v | –verbose] [-x | –x86] FILE Description grub-mkimage blesses a file on an HFS or HFS+ file system, so that it can be used to boot a Mac. Options –ppc Bless the file for use on PPC-based Macs. –verbose Print…
grub-install — Install GRUB on a device. Synopsis grub-install [–modules=MODULES] [–install-modules=MODULES] [–themes=THEMES] [–fonts=FONTS] [–locales=LOCALES] [–compress[=no,xz,gz,lzo]] [-d | –directory=DIR] [–grub-mkimage=FILE] [–boot-directory=DIR] [–target=TARGET] [–grub-setup=FILE] [–grub-mkrelpath=FILE] [–grub-probe=FILE] [–allow-floppy] [–recheck] [–force] [–force-file-id] [–disk-module=MODULE] [–no-nvram] [–removable] [–bootloader-id=ID] [–efi-directory=DIR] INSTALL_DEVICE Description grub-install installs GRUB onto a device. This includes copying GRUB images into the target directory (generally /boot/grub), and on some…
grub-bios-setup — Set up images to boot from a device. Synopsis grub-bios-setup [-a | –allow-floppy] [-b | –boot-image=FILE] [-c | –core-image=FILE] [-d | –directory=DIR] [-f | –force] [-m | –device-map=FILE] [-s | –skip-fs-probe] [-v | –verbose] DEVICE Description You should not normally run this program directly. Use grub-install instead. Options –allow-floppy Make the device also…
grub – the grub shell Synopsis grub [OPTION]… Description Enter the GRand Unified Bootloader command shell. –batch turn on batch mode for non-interactive use –boot-drive=DRIVE specify stage2 boot_drive [default=0x0] –config-file=FILE specify stage2 config_file [default=/boot/grub/grub.conf] –device-map=FILE use the device map file FILE –help display this message and exit –hold wait until a debugger will attach –install-partition=PAR…
grub-terminfo – Generate a terminfo command from a terminfo name Synopsis grub-terminfo TERMNAME Description Generate a terminfo command from a terminfo name. -h, –help print this message and exit -v, –version print the version information and exit Reporting Bugs Report bugs to <bug-grub [at] gnu.org>. See Also The full documentation for grub-terminfo is maintained as…
grub-set-default – set the saved default boot entry for GRUB Synopsis grub-set-default [,OPTION/] ,MENU_ENTRY/ Description Set the default boot menu entry for GRUB. This requires setting GRUB_DEFAULT=saved in ,/etc/default/grub/. -h, –help print this message and exit -V, –version print the version information and exit –boot-directory=,DIR/ expect GRUB images under the directory DIR/grub instead of the…
grub-reboot – set the default boot entry for GRUB, for the next boot only Synopsis grub-reboot [,OPTION/] ,MENU_ENTRY/ Description Set the default boot menu entry for GRUB, for the next boot only. -h, –help print this message and exit -V, –version print the version information and exit –boot-directory=,DIR/ expect GRUB images under the directory DIR/grub…
grub-probe – probe device information for GRUB Synopsis grub-probe [,OPTION/…] [,OPTION/]… [,PATH|DEVICE/] Description Probe device information for a given path (or device, if the -d option is given). -0 separate items in output using ASCII NUL characters -d, –device given argument is a system device, not a path -m, –device-map=,FILE/ use FILE as the device…
grub-mkdevicemap – make a device map file automatically Synopsis grub-mkdevicemap [,OPTION/]… Description Generate a device map file automatically. -n, –no-floppy do not probe any floppy drive -s, –probe-second-floppy probe the second floppy drive -m, –device-map=,FILE/ use FILE as the device map [default=/boot/grub/device.map] -h, –help display this message and exit -V, –version print version information and…