CubitOom@infosec.pub to linuxmemes@lemmy.worldEnglish · 1 day agoLol, they locked all the posts for the communityinfosec.pubimagemessage-square126fedilinkarrow-up1338arrow-down116file-text
arrow-up1322arrow-down1imageLol, they locked all the posts for the communityinfosec.pubCubitOom@infosec.pub to linuxmemes@lemmy.worldEnglish · 1 day agomessage-square126fedilinkfile-text
minus-squareKazumaralinkfedilinkarrow-up17·edit-223 hours ago In A UEFI World, “rm -rf /” Can Brick Your System efivars are made read only by the kernel. That firmware bug (!) was worked around in the kernel years ago. https://github.com/torvalds/linux/blob/master/Documentation/filesystems/efivarfs.rst Specifically in 2016: https://github.com/torvalds/linux/commit/ed8b0de5a33d2a2557dce7f9429dca8cb5bc5879
minus-squareJumuta@sh.itjust.workslinkfedilinkarrow-up5arrow-down2·10 hours agouefi is cringe anyway, reject uefi and return to grub in the system firmware
minus-squareKazumaralinkfedilinkarrow-up2·3 hours agoFirmware is one step before. BIOS, UEFI, coreboot, or whatever weird code runs on a Raspberry Pi’s GPU to load your system, those are firmwares. The firmware is what starts your bootloader; grub, BOOTMGR, u-boot, etc
efivars are made read only by the kernel. That firmware bug (!) was worked around in the kernel years ago.
https://github.com/torvalds/linux/blob/master/Documentation/filesystems/efivarfs.rst
Specifically in 2016: https://github.com/torvalds/linux/commit/ed8b0de5a33d2a2557dce7f9429dca8cb5bc5879
uefi is cringe anyway, reject uefi and return to grub in the system firmware
Firmware is one step before.
BIOS, UEFI, coreboot, or whatever weird code runs on a Raspberry Pi’s GPU to load your system, those are firmwares.
The firmware is what starts your bootloader; grub, BOOTMGR, u-boot, etc