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* fs/iso9660: remove support for grubGravatar Yann E. MORIN2017-09-231-20/+0
| | | | | | | | | grub will be removed soon. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Ricardo Martincoski <ricardo.martincoski@gmail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
* fs/iso9660: support building a real iso9660 filesystemGravatar Thomas Petazzoni2015-06-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Until now, the iso9660 filesystem handling only supported using an initrd/initramfs to store the root filesystem, which is very different from what we do with the other filesystems. This commit changes the iso9660 logic to also allow using directly an iso9660 filesystem to store the root filesystem. A new option, BR2_TARGET_ROOTFS_ISO9660_INITRD, is created to tell the iso9660 that we want to use an initrd and not directly the root filesystem in iso9660 format. This option defaults to 'y' to preserve the existing behavior. After this commit, we therefore have three possibilities: * BR2_TARGET_ROOTFS_ISO9660=y, with BR2_TARGET_ROOTFS_INITRAMFS and BR2_TARGET_ROOTFS_ISO9660_INITRD disabled. In this case, the iso9660 filesystem is directly the contents of the root filesystem (since is possible thanks to the Rockridge extensions that were already enabled using the -R option of genisoimage). Obviously, it means that the root filesystem is read-only. * BR2_TARGET_ROOTFS_ISO9660=y and BR2_TARGET_ROOTFS_INITRAMFS=y (the value of BR2_TARGET_ROOTFS_ISO9660_INITRD doesn't matter). In this case, the root filesystem is already linked into the kernel image itself, as an initramfs. So the iso9660 filesystem doesn't contain the root filesystem as is, but just the bootloader and the kernel image. * BR2_TARGET_ROOTFS_ISO9660=y, BR2_TARGET_ROOTFS_ISO9660_INITRD=y and BR2_TARGET_ROOTFS_INITRAMFS disabled. In this case, a separate initrd is used. The iso9660 filesystem only contains the bootloader, the kernel and the initrd. In order to support the first case out of the box, root=/dev/sr0 is added on the kernel command line in the example Grub configuration file, so that the kernel knows where the root filesystem is located. This argument is ignored when initrd/initramfs are used. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
* fs/iso9660: prepare cleaner kernel/initrd path handlingGravatar Thomas Petazzoni2015-06-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | The iso9660.mk modifies the menu.lst file from Grub to set the correct initrd/kernel image locations. However, with the upcoming support of other bootloaders for iso9660 filesystems, we need to modify a bit this logic. Instead of relying on the specific details of the grub menu.lst syntax, we introduce the __KERNEL_PATH__ and __INITRD_PATH__ magic keywords, which iso9660.mk will replace by the appropriate values. They can therefore be used where needed in grub menu.lst, and in similar configuration files of other bootloaders, as will be supported in the following commits. Also, in order to be consistent with the soon to be introduced support for having the root filesystem itself as iso9660, this commit changes the installation location of the initrd and kernel. Instead of being /initrd and /kernel, they become /boot/initrd and /boot/$(LINUX_IMAGE_NAME). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Samuel Martin <s.martin49@gmail.com> Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
* fs/iso9660: change the location of the splash imageGravatar Thomas Petazzoni2015-06-141-1/+1
| | | | | | | | | | | | | In order to simplify the introduction of the support for using ISO9660 as the real root filesystem, this commit changes the location of the grub splash image. This makes it match where the splash image is located in $(TARGET_DIR), so that regardless of whether the initrd/initramfs solution or the real iso9660 filesystem solution are used, the splash image is installed at the same location. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Samuel Martin <s.martin49@gmail.com> Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
* fs/iso9660: add Grub splashscreen supportGravatar Thomas Petazzoni2013-12-311-1/+10
| | | | | | | | | When Grub is built with splashscreen support, copy the splashscreen image to the ISO9660 filesystem. Otherwise, disable the splashscreen in the grub menu.lst file. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
* fs/iso9660: put the Buildroot boot entry first in Grub menu.lstGravatar Thomas Petazzoni2013-12-291-4/+4
| | | | | | | | | | | | | | | The ISO9660-specific Grub menu.lst contains two entries: one entry to chainload the bootloader available in the first hard drive, and another entry to boot the Buildroot system. However, it defaults to booting the first entry, i.e chainloading what's on the first hard drive. For a Buildroot generated system, this is quite odd: we're not even booting the system built by Buildroot. So, switch the two entries, and put the Buildroot boot entry first. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
* Move all filesystem generation code to fs/Gravatar Thomas Petazzoni2010-04-091-0/+11
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>