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genkernel-hyperv-notes

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genkernel-hyperv-notes [2018/04/10 18:09]
snarg created
genkernel-hyperv-notes [2019/08/07 10:05] (current)
snarg
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-As at 201804, genkernel cannot create either a kernel or an initramfs that will boot under hyperv. The ata_piix module ignores the ata emulation support ( with kernel message "​Hyper-V Virtual Machine detected, ATA device ignore set" ) if CONFIG_HYPERV_STORAGE is set. Therefore either dont set it to use ata_piix, or make sure the resulting module (hv_storvsc) actually loads.+As at 201804 ​(and 201908 - updated), genkernel cannot create either a kernel or an initramfs that will boot under hyperv. The ata_piix module ignores the ata emulation support ( with kernel message "​Hyper-V Virtual Machine detected, ATA device ignore set" ) if CONFIG_HYPERV_STORAGE is set. Therefore either dont set it to use ata_piix, or make sure the resulting module (hv_storvsc) actually loads.
  
-Under hyperV, kernels created via genkernel also need hyperv network support. This is enabled manually in the config file. When upgrading kernel, start with genkernel'​s fresh config ​and then add hyperV support. The --hyperv option to genkernel is meant to do this, but didnt work in my case. (see https://​wiki.gentoo.org/​wiki/​Hyper-V ​ ). Alternatively,​ Add a "​Legacy Network"​ in hyperv and use the DEC Tulip module (100BaseFX only).+Under hyperV, kernels created via genkernel also need hyperv network support. This is enabled manually in the config file. When upgrading kernel, start with genkernel'​s fresh config ​(run genkernal all, then interupt it once config is generated). 
 +Then add hyperV support. The --hyperv option to genkernel is meant to do this, but didnt work in my case. (see https://​wiki.gentoo.org/​wiki/​Hyper-V ​ ). Alternatively,​ Add a "​Legacy Network"​ in hyperv and use the DEC Tulip module (100BaseFX only). 
 + 
 +Here are the changes needed from default using "make menuconfig"​ in the linux source directory:​ 
 +-Processor type and features, Linux Guest support 
 +-Device Drivers, Microsoft HyperV guest support, (all as modules) 
 +-Device Drivers, Network device support, Microsoft Hyper-V virtual network driver as module 
 +(do a search for hyperv with '/'​ key and make sure relevent modules are enabled) 
 + 
 +copy config to /boot
  
 then, edit /​usr/​share/​genkernel/​arch/​x86/​modules_load and add then, edit /​usr/​share/​genkernel/​arch/​x86/​modules_load and add
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 then, then,
-genkernel ​all +genkernel ​--kernel-config=/​boot/​the-file-you-copied-above all
- +
-take note of where genkernel is getting its config ​from and overwrite it if +
-need be.+
  
genkernel-hyperv-notes.txt · Last modified: 2019/08/07 10:05 by snarg