NetBSD 絹の日記

libkver is the utility of faking the result of uname -a, and it is nice to use CHROOT pkgsrc build
when the kernel and userland in chroot is different. The typical story is:

install NetBSD current, say 10.99.4
prepare chrooted environment with 9.3
(I do not use sandbox, but use pax to openup binaries/*.xz)
do pkgsrc build inside chroot for Release 9.3

＠ Info from ryoon, Ryo Onodera:

(https://blog.onodera.asia/2015/03/pkgsrcpkgtoolslibkverchrootuname.html)

This is my start point, really helpful, thank you

＠ pbulk and chroot:

Following two are theoretically, independent

chroot
pbulk

But we usually employ both at the same time. Especially pbulk remove everything under /usr/pkg

＠ libkver:

install (make package) libkver inside of chroot for pbulk

cd /usr/pkgsrc/pkgtools/libkver ; 
env PATH=/usr/pkg_bulk/bin:/usr/pkg_bulk/sbin:${PATH} bmake package-install

copy two files onto outside of chroot

sudo -s
mkdir -p /usr/pkg_bulk/sbin
mkdir    /usr/pkg_bulk/lib
cp -p /CHROOT/usr/pkg_bulk/sbin/kver      /usr/pkg_bulk/sbin
cp -p /CHROOT/usr/pkg_bulk/lib/libkber.so /usr/pkg_bulk/lib

without doing above, you may got

/usr/pkg/lib/libkver.so not found


(after you once run pbulk)

＠ start chroot with kver:

prepare shell script to start chroot shell (kind of optional)

/usr/pkg_bulk/sbin/kver -r 9.3 /usr/sbin/chroot /CHROOT

In my case, I insist using zsh, so zsh has been installed in chroot also, and then

env SHELL=/usr/pkg_bulk/bin/zsh  /usr/pkg_bulk/sbin/kver -r 9.3 /usr/sbin/chroot /CHROOT

sx2-252@makoto 11:27:38/230520(~)% sudo sh   /CHROOT/chroot-9.3.sh 
Password: 

sx2-252# uname -a
NetBSD sx2-252.s.ki.nu 9.3 NetBSD 9.3 (LIBKVER) #0: 
  Tue Jan 19 00:00:00 UTC 2038 root@localhost:/sys/arch/amd64/compile/LIBKVER amd64

2023年05月19日(金) 旧暦 [n年日記] [更新:"2004/08/09 23:43:33"]

#1 [pkgsrc] libkver and pbulk

＠ Info from ryoon, Ryo Onodera:

＠ pbulk and chroot:

＠ libkver:

＠ start chroot with kver: