17 lines
612 B
Text
17 lines
612 B
Text
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efivarfs - a (U)EFI variable filesystem
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The efivarfs filesystem was created to address the shortcomings of
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using entries in sysfs to maintain EFI variables. The old sysfs EFI
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variables code only supported variables of up to 1024 bytes. This
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limitation existed in version 0.99 of the EFI specification, but was
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removed before any full releases. Since variables can now be larger
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than a single page, sysfs isn't the best interface for this.
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Variables can be created, deleted and modified with the efivarfs
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filesystem.
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efivarfs is typically mounted like this,
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mount -t efivarfs none /sys/firmware/efi/efivars
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