forked from pool/kernel-firmware
37 lines
1.3 KiB
Bash
37 lines
1.3 KiB
Bash
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#/bin/bash
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#%stage: boot
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#
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# Adds AMD microcode to the initrd
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#
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# If processor(s) are upgraded on the system, mkinitrd has to be re-called
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# manually to include a possible other needed firmware to the initrd
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#
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if grep -q -i AuthenticAMD /proc/cpuinfo; then
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echo -n "Microcode: "
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if [ ! -e /lib/firmware/amd-ucode ];then
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echo "AMD microcode not found, amd-ucode package not installed?"
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return 0
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fi
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fam=`head /proc/cpuinfo |sed -n -e 's/cpu family.*: \([0-9]\+\)/\1/p'`
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# Only try to update when family >= 16 (0x10, fam 10h)
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if [ $fam -ge 16 >& /dev/null ];then
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# Family 0x15 firmware is named: microcode_amd_famXXh.bin"
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if [ $fam -lt 21 >& /dev/null ];then
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file=microcode_amd.bin
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else
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file=`printf "microcode_amd_fam%xh.bin" $fam`
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fi
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if [ -e /lib/firmware/amd-ucode ];then
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echo "Adding AMD microcode $file"
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mkdir -p $tmp_mnt/lib/firmware/amd-ucode
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cp /lib/firmware/amd-ucode/"$file"* $tmp_mnt/lib/firmware/amd-ucode
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else
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echo "No AMD microcode found, amd-ucode package not installed?"
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fi
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else
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printf "AMD CPU family: 0x%x does not support microcode updates" $fam
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fi
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fi
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