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Gentoo kernel upgrade guide - Revision history
2026-04-29T01:27:01Z
Revision history for this page on the wiki
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http://www.thelinuxwiki.com/index.php?title=Gentoo_kernel_upgrade_guide&diff=1047&oldid=prev
Nighthawk: /* genkernel upgrade commands */
2016-12-18T16:19:12Z
<p><span dir="auto"><span class="autocomment">genkernel upgrade commands</span></span></p>
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<td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 16:19, 18 December 2016</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  linux # cp /boot/grub/grub.conf /boot/grub/grub.conf.bak</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  linux # cp /boot/grub/grub.conf /boot/grub/grub.conf.bak</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  linux # genkernel --bootloader=grub all</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  linux # genkernel --bootloader=grub all</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>get current kernel symlink</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>get current kernel symlink</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  ls -l /usr/src/ | grep lrw | awk '{print $11}'</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>  ls -l /usr/src/ | grep lrw | awk '{print $11}'</div></td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Loading kernel modules on boot ==</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>== Loading kernel modules on boot ==</div></td></tr>
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Nighthawk
http://www.thelinuxwiki.com/index.php?title=Gentoo_kernel_upgrade_guide&diff=174&oldid=prev
Nighthawk: Pushed from Themanclub.
2013-04-12T15:39:09Z
<p>Pushed from Themanclub.</p>
<p><b>New page</b></p><div><br />
== manual kernel upgrade using make oldconfig ==<br />
<br />
cd /usr/src/linux<br />
ls -l .config<br />
eselect kernel set 3<br />
cp -a .config /usr/src/linux/<br />
cd /usr/src/linux<br />
make oldconfig<br />
make && make modules_install<br />
ls -l /boot/<br />
cp -a arch/x86/boot/bzImage /boot/kernel-`ls -l /usr/src/linux |awk -F "> " '{print $2}'`<br />
rm /boot/vmlinuz.old<br />
oldkern=`ls -l /boot/vmlinuz | awk '{ print $NF }'`; ln -s $oldkern /boot/vmlinuz.old<br />
rm /boot/vmlinuz<br />
newkern=/boot/kernel-`ls -l /usr/src/linux |awk -F "> " '{print $2}'`; ln -s $newkern /boot/vmlinuz<br />
reboot<br />
<br />
== genkernel upgrade commands ==<br />
<br />
linux # eselect kernel list<br />
linux # eselect kernel set ''number''<br />
linux # cd /usr/src/linux<br />
linux # cp -a /etc/kernels/kernel-config-x86_64-3.0.6-gentoo .config<br />
linux # make oldconfig<br />
linux # cp -a .config /etc/kernels/kernel-config-x86_64-3.1.6-gentoo<br />
linux # cp /boot/grub/grub.conf /boot/grub/grub.conf.bak<br />
linux # genkernel --bootloader=grub all<br />
<br />
Error:<br />
* No current 'title' entries found in your grub.conf...skipping update<br />
<br />
linux # ls -l /boot/<br />
<br />
rm initramfs.old <br />
rm vmlinuz<br />
ln -s kernel-genkernel-x86_64-3.0.6-gentoo vmlinuz.old<br />
ln -s initramfs-genkernel-x86_64-3.0.6-gentoo initramfs.old<br />
ln -s kernel-genkernel-x86_64-3.1.6-gentoo vmlinuz<br />
ln -s kernel-genkernel-x86_64-3.1.6-gentoo vmlinuz<br />
vi /boot/grub/menu.lst<br />
<br />
get current kernel symlink<br />
ls -l /usr/src/ | grep lrw | awk '{print $11}'<br />
<br />
<br />
== Loading kernel modules on boot ==<br />
configure /etc/conf.d/modules file (base layout 2)<br />
example loading of e1000 NIC driver module:<br />
modules="e1000"<br />
<br />
<br />
== eselect script ==<br />
<br />
cd /usr/src/linux; eselect kernel list; printf "select newest kernel version:"; read KERNEL_SET; export KERNEL_SET; echo "your choice = $KERNEL_SET"; eselect kernel set $KERNEL_SET; echo "current kernel symlink is(denoted by asterik)..."; eselect kernel list;<br />
<br />
[[category:linux]]</div>
Nighthawk