Switch to using upstream mk-s390image for s390 cdboot.img creation
mk-s390-cdboot has stopped working because the kernel outgrew the hard-coded offset it used when creating cdboot.img. IBM now has a script in s390utils that can do the same thing so use the upstream script instead. This drops mk-s390-cdboot script, switches the s390 templates to use mk-s390image from s390utils. It adds @ROOT@ to cdboot.prm, and sets inst.stage2 so that the installer image will be found when booting the iso. Related: rhbz#1892404
This commit is contained in:
Brian C. Lane
parent
6291373794
commit
be3aa59daa
@ -71,6 +71,7 @@ Requires: grub2-tools
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%ifarch s390 s390x
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Requires: openssh
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Requires: s390utils >= 2.15.0-2
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%endif
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%ifarch %{arm}
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@ -216,7 +217,6 @@ getent passwd weldr >/dev/null 2>&1 || useradd -r -g weldr -d / -s /sbin/nologin
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%{_sbindir}/mkefiboot
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%{_sbindir}/livemedia-creator
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%{_bindir}/image-minimizer
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%{_bindir}/mk-s390-cdboot
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%dir %{_sysconfdir}/lorax
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%config(noreplace) %{_sysconfdir}/lorax/lorax.conf
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%dir %{_datadir}/lorax
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1
setup.py
1
setup.py
@ -23,7 +23,6 @@ for root, dnames, fnames in os.walk("share"):
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data_files.append(("/usr/sbin", ["src/sbin/lorax", "src/sbin/mkefiboot",
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"src/sbin/livemedia-creator", "src/sbin/lorax-composer"]))
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data_files.append(("/usr/bin", ["src/bin/image-minimizer",
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"src/bin/mk-s390-cdboot",
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"src/bin/composer-cli"]))
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# get the version
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@ -1 +1 @@
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ro
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ro @ROOT@
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@ -6,6 +6,7 @@ KERNELDIR=BOOTDIR
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INITRD_ADDRESS="0x02000000"
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LIVEDIR="LiveOS"
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LORAXDIR="usr/share/lorax/"
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MKS390IMAGE="/usr/bin/mk-s390image"
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# The assumption seems to be that there is only one s390 kernel, ever
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kernel = kernels[0]
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@ -74,10 +75,10 @@ treeinfo images-${basearch} cdboot.prm ${BOOTDIR}/cdboot.prm
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%endfor
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## Make a combined kernel+initrd image for the iso
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runcmd mk-s390-cdboot -i ${outroot}/${KERNELDIR}/kernel.img \
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runcmd ${MKS390IMAGE} ${outroot}/${KERNELDIR}/kernel.img \
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${outroot}/${BOOTDIR}/cdboot.img \
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-r ${outroot}/${KERNELDIR}/initrd.img \
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-p ${outroot}/${BOOTDIR}/cdboot.prm \
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-o ${outroot}/${BOOTDIR}/cdboot.img
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-p ${outroot}/${BOOTDIR}/cdboot.prm
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## make boot.iso
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runcmd mkisofs -o ${outroot}/images/boot.iso \
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@ -5,6 +5,7 @@ BOOTDIR="images"
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KERNELDIR=BOOTDIR
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INITRD_ADDRESS="0x02000000"
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LORAXDIR="usr/share/lorax/"
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MKS390IMAGE="/usr/bin/mk-s390image"
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# The assumption seems to be that there is only one s390 kernel, ever
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kernel = kernels[0]
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@ -24,6 +25,7 @@ install ${configdir}/generic.ins .
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## configure bootloader
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replace @INITRD_LOAD_ADDRESS@ ${INITRD_ADDRESS} generic.ins
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replace @ROOT@ 'inst.stage2=hd:LABEL=${isolabel|udev}' ${BOOTDIR}/cdboot.prm
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## install kernel
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installkernel images-${basearch} ${kernel.path} ${KERNELDIR}/kernel.img
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@ -62,10 +64,10 @@ treeinfo images-${basearch} redhat.exec ${BOOTDIR}/redhat.exec
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%endfor
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## Make a combined kernel+initrd image for the iso
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runcmd mk-s390-cdboot -i ${outroot}/${KERNELDIR}/kernel.img \
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runcmd ${MKS390IMAGE} ${outroot}/${KERNELDIR}/kernel.img \
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${outroot}/${BOOTDIR}/cdboot.img \
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-r ${outroot}/${KERNELDIR}/initrd.img \
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-p ${outroot}/${BOOTDIR}/cdboot.prm \
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-o ${outroot}/${BOOTDIR}/cdboot.img
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-p ${outroot}/${BOOTDIR}/cdboot.prm
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## make boot.iso
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runcmd mkisofs -o ${outroot}/images/boot.iso \
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@ -1,112 +0,0 @@
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#!/usr/bin/python3
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#
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# mk-s390-cdboot
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#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import argparse
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import os
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import shutil
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from struct import pack
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import sys
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INITRD_START = 0x0000000000800000
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START_PSW_ADDRESS = 0x80010000
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KERNEL_PSW_ADDRESS = 0x04
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KERNEL_INITRD_START = 0x10408
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KERNEL_INITRD_SIZE = 0x10410
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KERNEL_CMDLINE = 0x10480
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# See https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/s390/include/uapi/asm/setup.h
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KERNEL_CMDLINE_SIZE = 896
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def setup_parser():
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""" Setup the cmdline parser"""
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parser = argparse.ArgumentParser(description="Create s390 boot image")
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parser.add_argument("-i", dest="kernel", required=True, metavar="KERNEL",
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help="The kernel.img file")
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parser.add_argument("-r", dest="ramdisk", required=True, metavar="RAMDISK",
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help="The initrd.img file")
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parser.add_argument("-p", dest="parmfile", required=True, metavar="PARMFILE",
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help="The parm file")
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parser.add_argument("-o", dest="outfile", required=True, metavar="OUTFILE",
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help="The output image file")
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return parser
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def copy_kernel(kernel, outfile):
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""" Copy the kernel to the outfile"""
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shutil.copy2(kernel, outfile)
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def append_ramdisk(ramdisk, outfile):
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""" Append the ramdisk to the kernel and return its size"""
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with open(ramdisk, "rb") as ram_fd:
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with open(outfile, "r+b") as out_fd:
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out_fd.seek(INITRD_START)
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out_fd.write(ram_fd.read())
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return os.stat(ramdisk).st_size
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def configure_kernel(outfile, parmfile, size):
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""" Configure the kernel with the ramdisk start address and size."""
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with open(outfile, "r+b") as out_fd:
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# Change the start PSW address
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out_fd.seek(KERNEL_PSW_ADDRESS)
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out_fd.write(pack(">L", START_PSW_ADDRESS))
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# Write the initrd start and size
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out_fd.seek(KERNEL_INITRD_START)
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out_fd.write(pack(">Q", INITRD_START))
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out_fd.seek(KERNEL_INITRD_SIZE)
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out_fd.write(pack(">Q", size))
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# Erase the previous COMMAND_LINE, write zeros
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out_fd.seek(KERNEL_CMDLINE)
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out_fd.write(bytes(KERNEL_CMDLINE_SIZE))
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# Write the first line of the parmfile
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cmdline = open(parmfile, "r").readline().strip()
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out_fd.seek(KERNEL_CMDLINE)
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out_fd.write(bytes(cmdline, "utf-8"))
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def main():
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parser = setup_parser()
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args = parser.parse_args()
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errors = []
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for f in [args.kernel, args.ramdisk, args.parmfile]:
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if not os.path.exists(f):
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errors.append("ERROR: %s is missing" % f)
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if errors:
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for e in errors:
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print(e)
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sys.exit(1)
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print("Creating bootable CD-ROM image...")
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print("kernel is : %s" % args.kernel)
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print("ramdisk is : %s" % args.ramdisk)
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print("parmfile is: %s" % args.parmfile)
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print("outfile is : %s" % args.outfile)
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copy_kernel(args.kernel, args.outfile)
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size = append_ramdisk(args.ramdisk, args.outfile)
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configure_kernel(args.outfile, args.parmfile, size)
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if __name__ == '__main__':
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main()
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