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installer: Add support to install on EFI systems

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Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This commit is contained in:
Michael Tremer
2018-06-11 10:31:29 +01:00
parent 4c2343931c
commit 92e782332c
4 changed files with 132 additions and 20 deletions
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134
src/installer/hw.c
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@@ -37,6 +37,7 @@
#include <sys/stat.h>
#include <sys/swap.h>
#include <sys/sysinfo.h>
#include <sys/utsname.h>
#include <unistd.h>
#include <linux/fs.h>
@@ -71,8 +72,14 @@ struct hw* hw_init() {
exit(1);
}
// What architecture are we running on?
struct utsname uname_data;
int ret = uname(&uname_data);
if (ret == 0)
snprintf(hw->arch, sizeof(hw->arch), "%s", uname_data.machine);
// Detect if we are running in EFI mode
int ret = access("/sys/firmware/efi", R_OK);
ret = access("/sys/firmware/efi", R_OK);
if (ret == 0)
hw->efi = 1;
@@ -140,7 +147,14 @@ int hw_mount(const char* source, const char* target, const char* fs, int flags)
}
}
return mount(source, target, fs, flags, NULL);
int r = mount(source, target, fs, flags, NULL);
if (r) {
fprintf(stderr, "Error mounting %s to %s (fs = %s, flags = %d): %s\n",
source, target, fs, flags, strerror(r));
}
return r;
}
int hw_umount(const char* target) {
@@ -443,7 +457,7 @@ static int hw_device_has_p_suffix(const struct hw_destination* dest) {
return 0;
}
static int hw_calculate_partition_table(struct hw_destination* dest, int disable_swap) {
static int hw_calculate_partition_table(struct hw* hw, struct hw_destination* dest, int disable_swap) {
char path[DEV_SIZE];
int part_idx = 1;
@@ -501,9 +515,15 @@ static int hw_calculate_partition_table(struct hw_destination* dest, int disable
dest->size_boot = hw_boot_size(dest);
// Create an EFI partition when running in EFI mode
if (hw->efi)
dest->size_boot_efi = MB2BYTES(32);
else
dest->size_boot_efi = 0;
// Determine the size of the data partition.
unsigned long long space_left = dest->size - \
(dest->size_bootldr + dest->size_boot);
(dest->size_bootldr + dest->size_boot + dest->size_boot_efi);
// If we have less than 2GB left, we disable swap
if (space_left <= MB2BYTES(2048))
@@ -530,6 +550,14 @@ static int hw_calculate_partition_table(struct hw_destination* dest, int disable
} else
*dest->part_boot = '\0';
if (dest->size_boot_efi > 0) {
dest->part_boot_efi_idx = part_idx;
snprintf(dest->part_boot_efi, sizeof(dest->part_boot_efi),
"%s%d", path, part_idx++);
} else
*dest->part_boot_efi = '\0';
if (dest->size_swap > 0)
snprintf(dest->part_swap, sizeof(dest->part_swap), "%s%d", path, part_idx++);
else
@@ -544,7 +572,7 @@ static int hw_calculate_partition_table(struct hw_destination* dest, int disable
return 0;
}
struct hw_destination* hw_make_destination(int part_type, struct hw_disk** disks, int disable_swap) {
struct hw_destination* hw_make_destination(struct hw* hw, int part_type, struct hw_disk** disks, int disable_swap) {
struct hw_destination* dest = malloc(sizeof(*dest));
if (part_type == HW_PART_TYPE_NORMAL) {
@@ -564,7 +592,7 @@ struct hw_destination* hw_make_destination(int part_type, struct hw_disk** disks
// Is this a RAID device?
dest->is_raid = (part_type > HW_PART_TYPE_NORMAL);
int r = hw_calculate_partition_table(dest, disable_swap);
int r = hw_calculate_partition_table(hw, dest, disable_swap);
if (r)
return NULL;
@@ -652,6 +680,14 @@ int hw_create_partitions(struct hw_destination* dest, const char* output) {
part_start += dest->size_boot;
}
if (*dest->part_boot_efi) {
asprintf(&cmd, "%s mkpart %s fat32 %lluB %lluB", cmd,
(dest->part_table == HW_PART_TABLE_GPT) ? "ESP" : "primary",
part_start, part_start + dest->size_boot_efi - 1);
part_start += dest->size_boot_efi;
}
if (*dest->part_swap) {
asprintf(&cmd, "%s mkpart %s linux-swap %lluB %lluB", cmd,
(dest->part_table == HW_PART_TABLE_GPT) ? "SWAP" : "primary",
@@ -671,6 +707,9 @@ int hw_create_partitions(struct hw_destination* dest, const char* output) {
if (dest->part_boot_idx > 0)
asprintf(&cmd, "%s set %d boot on", cmd, dest->part_boot_idx);
if (dest->part_boot_efi_idx > 0)
asprintf(&cmd, "%s set %d esp on", cmd, dest->part_boot_efi_idx);
if (dest->part_table == HW_PART_TABLE_GPT) {
if (*dest->part_bootldr) {
asprintf(&cmd, "%s set %d bios_grub on", cmd, dest->part_boot_idx);
@@ -693,6 +732,9 @@ int hw_create_partitions(struct hw_destination* dest, const char* output) {
if (*dest->part_boot && (try_open(dest->part_boot) != 0))
continue;
if (*dest->part_boot_efi && (try_open(dest->part_boot_efi) != 0))
continue;
if (*dest->part_swap && (try_open(dest->part_swap) != 0))
continue;
@@ -731,6 +773,10 @@ static int hw_format_filesystem(const char* path, int fs, const char* output) {
// XFS
} else if (fs == HW_FS_XFS) {
snprintf(cmd, sizeof(cmd), "/sbin/mkfs.xfs -f %s", path);
// FAT32
} else if (fs == HW_FS_FAT32) {
snprintf(cmd, sizeof(cmd), "/sbin/mkfs.vfat %s", path);
}
assert(*cmd);
@@ -750,6 +796,13 @@ int hw_create_filesystems(struct hw_destination* dest, const char* output) {
return r;
}
// ESP
if (*dest->part_boot_efi) {
r = hw_format_filesystem(dest->part_boot_efi, HW_FS_FAT32, output);
if (r)
return r;
}
// swap
if (*dest->part_swap) {
r = hw_format_filesystem(dest->part_swap, HW_FS_SWAP, output);
@@ -785,6 +838,10 @@ int hw_mount_filesystems(struct hw_destination* dest, const char* prefix) {
filesystem = "xfs";
break;
case HW_FS_FAT32:
filesystem = "vfat";
break;
default:
assert(0);
}
@@ -807,6 +864,19 @@ int hw_mount_filesystems(struct hw_destination* dest, const char* prefix) {
}
}
// ESP
if (*dest->part_boot_efi) {
snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_BOOT_EFI);
mkdir(target, S_IRWXU|S_IRWXG|S_IRWXO);
r = hw_mount(dest->part_boot_efi, target, "vfat", 0);
if (r) {
hw_umount_filesystems(dest, prefix);
return r;
}
}
// swap
if (*dest->part_swap) {
r = swapon(dest->part_swap, 0);
@@ -843,6 +913,14 @@ int hw_umount_filesystems(struct hw_destination* dest, const char* prefix) {
// Write all buffers to disk before umounting
hw_sync();
// ESP
if (*dest->part_boot_efi) {
snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_BOOT_EFI);
r = hw_umount(target);
if (r)
return -1;
}
// boot
if (*dest->part_boot) {
snprintf(target, sizeof(target), "%s%s", prefix, HW_PATH_BOOT);
@@ -957,18 +1035,13 @@ int hw_stop_all_raid_arrays(const char* output) {
return mysystem(output, "/sbin/mdadm --stop --scan --verbose");
}
int hw_install_bootloader(struct hw_destination* dest, const char* output) {
int hw_install_bootloader(struct hw* hw, struct hw_destination* dest, const char* output) {
char cmd[STRING_SIZE];
int r;
// Generate configuration file
snprintf(cmd, sizeof(cmd), "/usr/sbin/grub-mkconfig -o /boot/grub/grub.cfg");
r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
if (r)
return r;
char cmd_grub[STRING_SIZE];
snprintf(cmd_grub, sizeof(cmd_grub), "/usr/sbin/grub-install --no-floppy --recheck");
snprintf(cmd_grub, sizeof(cmd_grub), "/usr/sbin/grub-install --target=i386-pc"
" --no-floppy --recheck");
if (dest->is_raid) {
snprintf(cmd, sizeof(cmd), "%s %s", cmd_grub, dest->disk1->path);
@@ -978,14 +1051,34 @@ int hw_install_bootloader(struct hw_destination* dest, const char* output) {
snprintf(cmd, sizeof(cmd), "%s %s", cmd_grub, dest->disk2->path);
r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
if (r)
return r;
} else {
snprintf(cmd, sizeof(cmd), "%s %s", cmd_grub, dest->path);
r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
if (r)
return r;
}
// Install GRUB in EFI mode
if (hw->efi) {
snprintf(cmd, sizeof(cmd), "/usr/sbin/grub-install"
" --target=%s-efi --efi-directory=%s", hw->arch, HW_PATH_BOOT_EFI);
r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
if (r)
return r;
}
// Generate configuration file
snprintf(cmd, sizeof(cmd), "/usr/sbin/grub-mkconfig -o /boot/grub/grub.cfg");
r = system_chroot(output, DESTINATION_MOUNT_PATH, cmd);
if (r)
return r;
hw_sync();
return r;
return 0;
}
static char* hw_get_uuid(const char* dev) {
@@ -1026,6 +1119,17 @@ int hw_write_fstab(struct hw_destination* dest) {
}
}
// ESP
if (*dest->part_boot_efi) {
uuid = hw_get_uuid(dest->part_boot_efi);
if (uuid) {
fprintf(f, FSTAB_FMT, uuid, "/boot/efi", "auto", "defaults", 1, 2);
free(uuid);
}
}
// swap
if (*dest->part_swap) {
uuid = hw_get_uuid(dest->part_swap);