Files
buildroot/support/testing/tests/fs/test_iso9660.py
dowan gullient 64944bcf64 support/testing: test_iso9660: Bump kernel version to last LTS (6.18)
Update the kernel configuration to support modern storage stacks
required for ISO booting on x86_64.

The transition from 4.19 to 6.18 requires explicit activation of:
- CONFIG_PCI: To discover the emulated IDE/SATA controllers.
- CONFIG_ATA & CONFIG_ATA_PIIX: Modern libATA drivers for QEMU's
  chipset (replacing the legacy IDE subsystem).
- CONFIG_SCSI & CONFIG_BLK_DEV_SR: Necessary to handle the CD-ROM
  as a SCSI device (/dev/sr0), which is mandatory for ISO9660.

Without these options, the kernel cannot locate or mount the
rootfs from the ISO image.

Signed-off-by: Dowan Gullient <dowan.gullient@smile.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>
2026-05-05 23:18:12 +02:00

164 lines
5.4 KiB
Python

import os
import infra.basetest
BASIC_CONFIG = \
"""
BR2_x86_core2=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_X86_CORE2_GLIBC_STABLE=y
BR2_TARGET_GENERIC_GETTY_PORT="ttyS0"
BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200=y
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_CUSTOM_VERSION=y
BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.18.21"
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="{}"
# BR2_TARGET_ROOTFS_TAR is not set
""".format(infra.filepath("conf/minimal-x86-qemu-kernel.config"))
def test_mount_internal_external(emulator, builddir, internal=True):
img = os.path.join(builddir, "images", "rootfs.iso9660")
emulator.boot(arch="i386", options=["-cdrom", img])
emulator.login()
if internal:
cmd = "mount | grep 'rootfs on / type rootfs'"
else:
cmd = "mount | grep '/dev/root on / type iso9660'"
_, exit_code = emulator.run(cmd)
return exit_code
def test_touch_file(emulator):
_, exit_code = emulator.run("touch test")
return exit_code
#
# Grub 2
class TestIso9660Grub2External(infra.basetest.BRTest):
config = BASIC_CONFIG + \
"""
BR2_TARGET_ROOTFS_ISO9660=y
# BR2_TARGET_ROOTFS_ISO9660_INITRD is not set
BR2_TARGET_GRUB2=y
BR2_TARGET_GRUB2_BOOT_PARTITION="cd"
BR2_TARGET_GRUB2_BUILTIN_MODULES_PC="boot linux ext2 fat part_msdos part_gpt normal biosdisk iso9660"
BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
""".format(infra.filepath("conf/grub2.cfg"))
def test_run(self):
exit_code = test_mount_internal_external(self.emulator,
self.builddir, internal=False)
self.assertEqual(exit_code, 0)
exit_code = test_touch_file(self.emulator)
self.assertEqual(exit_code, 1)
class TestIso9660Grub2ExternalCompress(infra.basetest.BRTest):
config = BASIC_CONFIG + \
"""
BR2_TARGET_ROOTFS_ISO9660=y
# BR2_TARGET_ROOTFS_ISO9660_INITRD is not set
BR2_TARGET_ROOTFS_ISO9660_TRANSPARENT_COMPRESSION=y
BR2_TARGET_GRUB2=y
BR2_TARGET_GRUB2_BOOT_PARTITION="cd"
BR2_TARGET_GRUB2_BUILTIN_MODULES_PC="boot linux ext2 fat part_msdos part_gpt normal biosdisk iso9660"
BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
""".format(infra.filepath("conf/grub2.cfg"))
def test_run(self):
exit_code = test_mount_internal_external(self.emulator,
self.builddir, internal=False)
self.assertEqual(exit_code, 0)
exit_code = test_touch_file(self.emulator)
self.assertEqual(exit_code, 1)
class TestIso9660Grub2Internal(infra.basetest.BRTest):
config = BASIC_CONFIG + \
"""
BR2_TARGET_ROOTFS_ISO9660=y
BR2_TARGET_ROOTFS_ISO9660_INITRD=y
BR2_TARGET_GRUB2=y
BR2_TARGET_GRUB2_BOOT_PARTITION="cd"
BR2_TARGET_GRUB2_BUILTIN_MODULES_PC="boot linux ext2 fat part_msdos part_gpt normal biosdisk iso9660"
BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
""".format(infra.filepath("conf/grub2.cfg"))
def test_run(self):
exit_code = test_mount_internal_external(self.emulator,
self.builddir, internal=True)
self.assertEqual(exit_code, 0)
exit_code = test_touch_file(self.emulator)
self.assertEqual(exit_code, 0)
#
# Syslinux
class TestIso9660SyslinuxExternal(infra.basetest.BRTest):
config = BASIC_CONFIG + \
"""
BR2_TARGET_ROOTFS_ISO9660=y
# BR2_TARGET_ROOTFS_ISO9660_INITRD is not set
BR2_TARGET_ROOTFS_ISO9660_HYBRID=y
BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
BR2_TARGET_SYSLINUX=y
""".format(infra.filepath("conf/isolinux.cfg"))
def test_run(self):
exit_code = test_mount_internal_external(self.emulator,
self.builddir, internal=False)
self.assertEqual(exit_code, 0)
exit_code = test_touch_file(self.emulator)
self.assertEqual(exit_code, 1)
class TestIso9660SyslinuxExternalCompress(infra.basetest.BRTest):
config = BASIC_CONFIG + \
"""
BR2_TARGET_ROOTFS_ISO9660=y
# BR2_TARGET_ROOTFS_ISO9660_INITRD is not set
BR2_TARGET_ROOTFS_ISO9660_TRANSPARENT_COMPRESSION=y
BR2_TARGET_ROOTFS_ISO9660_HYBRID=y
BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
BR2_TARGET_SYSLINUX=y
""".format(infra.filepath("conf/isolinux.cfg"))
def test_run(self):
exit_code = test_mount_internal_external(self.emulator,
self.builddir, internal=False)
self.assertEqual(exit_code, 0)
exit_code = test_touch_file(self.emulator)
self.assertEqual(exit_code, 1)
class TestIso9660SyslinuxInternal(infra.basetest.BRTest):
config = BASIC_CONFIG + \
"""
BR2_TARGET_ROOTFS_ISO9660=y
BR2_TARGET_ROOTFS_ISO9660_INITRD=y
BR2_TARGET_ROOTFS_ISO9660_HYBRID=y
BR2_TARGET_ROOTFS_ISO9660_BOOT_MENU="{}"
BR2_TARGET_SYSLINUX=y
""".format(infra.filepath("conf/isolinux.cfg"))
def test_run(self):
exit_code = test_mount_internal_external(self.emulator,
self.builddir, internal=True)
self.assertEqual(exit_code, 0)
exit_code = test_touch_file(self.emulator)
self.assertEqual(exit_code, 0)