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While installing Fedora on my MacBook Pro Mid 2012 I've occasionally used kexec command to "boot" from live environment to the installed system.

# yum install kexec-tools.x86_64
# mount LABEL=/boot /mnt
# kexec --append 'root=UUID=... rw' \
        --initrd /mnt/initramfs-3.11.10-301.fc20.x86_64.img \
        /mnt/vmlinuz-3.11.10-301.fc20.x86_64

This worked, but I had to connect USB keyboard and mouse because the the integrated ones suddenly stopped working. I've never used kexec before, so I'd like to know if this is "by design" or just a bug? Or may be somebody know how to work this around? I suspect it was caused by non-hotpluggable PS/2 bus, if so, is there a way to properly reinitialize it?

firegurafiku
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  • Also, would someone kindly create "kexec" tag? – firegurafiku Oct 30 '14 at 00:44
  • I experienced this exact issue, using kexec to jump from 3.16 to 4.4, except it was very intermittent— every few boots the USB peripherals would work, but mostly they wouldn't. Jumping to 4.8 instead seems to have resolved the issue for me. – mikepurvis Jul 13 '17 at 20:22

0 Answers0