optionally numeric bias may be directly appended to -ntin which case it is added to the first file modification time. file1 is newer than file2 (modification time).integer1 is less than integer2 after stripping off common non-numeric prefix.integer1 is greater than integer2 after stripping off common non-numeric prefix.integer1 is less than or equal to integer2.integer1 is greater than or equal to integer2.string1 is lexicographically greater or equal than string2.string1 is lexicographically greater than string2.-hint-arc = HINT If running in ARC environment, specify to search from a device firstĬalculate expression, if the result is true, return zero, otherwise return non-zero status.-hint-efi = HINT If running in EFI environment, specify to start searching from a device first.-hint-baremetal = HINT If running in baremetal environment, specify to search from a device first.-hint-bios = HINT If running in BIOS environment, specify to search from a device first.-hint-ieee1275 = HINT If running under the IEEE1275 environment, specify to start searching from a device first.-hint = HINT, -h specifies that the search starts from a device first, and if it ends with a comma, the subpartition will also be searched.-quiet, -q If there is no match, no error is displayed.-no-floppy, -n Do not detect floppy disks.-set = VARIABLE, -s save the first device found to a variable.-disk-uuid, U Search by disk UUID (GPT).-part-uuid, g Search by partition UUID (GPT).-part-label, -L Search by partition volume label.-fs-uuid, -u Search by file system UUID.-label, -l Search by file system volume label.-unrestricted allow all users to execute this menu.id cannot start with a number, only ASCII alphanumerics, underscores, and hyphens are supported -id = STRING Associates a unique identifier with a menu item.-source = STRING Use STRING as menu entry body.-users = UESR lists the users allowed to execute this menu.-class = STRING classify menu items, display icons by different categories.If the last command is successfully executed and the kernel has been loaded, the boot command will be automatically executed.Īll parameters including TITLE (arg…) are passed as positional parameters, and TITLE is assigned to $ 1. The commands in the braces will be executed. Menuentry “TITLE” ĭefine the GRUB menu item, the menu name is TITLEĪfter the menu item is selected for execution, if -id is specified, the value of the environment variable chosen will be set to the value of -id. -slic, -s Load as SLIC, automatically modify OEMID and OEMTABLE ID.It can prevent some BIOS from crashing and has no effect on the OS that cannot receive RSDP from GRUB. -oemtablecreatorrev = n, -d Set the OEMTABLE creator version of RSDP, XSDT, and RSDT.-oemtablecreator = STRING, -c Set OEMTABLE creator for RSDP, XSDT and RSDT.-oemtablerev = n, -r set OEMTABLE version of RSDP, XSDT and RSDT.-oemtable = STRING, -t set OEMTABLE ID for RSDP, XSDT and RSDT.-oemid = STRING, -o set OEMID of RSDP, XSDT and RSDT.-v2, -2 Import version 2 and 3 tables into the operating system.-v1, -1 import version 1 tables into the operating system.If you use the –no-ebda option, only GRUB gets the new table, but GRUB's EFI emulation can use the new table. In general, this command replaces the root system description pointer (RSDP) in the extended BIOS data area to point to the new table. In some cases, the tables provided by default apply only to certain operating systems, and it may be necessary to replace some of them. Modern BIOS systems typically implement ACPI and define various tables to describe the interface between ACPI-compliant operating systems and firmware.
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