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configs: make the firmware filesystems actually readable (squashfs xz/lzo/lz4/zstd, xattrs, UBI/UBIFS, erofs) #60

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Merged
lacraig2 merged 6 commits into from
Aug 20, 2026
Merged

configs: make the firmware filesystems actually readable (squashfs xz/lzo/lz4/zstd, xattrs, UBI/UBIFS, erofs) #60

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205cc7c
configs: enable SQUASHFS_XZ on 4.10 and 6.13
lacraig2 Aug 20, 2026
f3befe3
configs: enable the remaining squashfs decompressors
lacraig2 Aug 20, 2026
bba821a
config-tools: hold SQUASHFS_XZ in the required contract
lacraig2 Aug 20, 2026
4059f81
configs: read xattrs on squashfs and jffs2
lacraig2 Aug 20, 2026
9644594
configs: UBI and UBIFS, which were entirely absent
lacraig2 Aug 20, 2026
1ee5e57
configs: erofs, with its optional compressors (6.13)
lacraig2 Aug 20, 2026
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8 changes: 8 additions & 0 deletions configs/4.10/all-common.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,7 @@ CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_SET=y
CONFIG_ISO9660_FS=y
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
CONFIG_JFFS2_FS_XATTR=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_LZO=y
CONFIG_JFFS2_RUBIN=y
Expand Down Expand Up @@ -170,6 +171,8 @@ CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_NAND=y
CONFIG_MTD_UBI_BLOCK=y
CONFIG_MTD_UBI=y
CONFIG_NAMESPACES=y
CONFIG_NCP_FS=y
CONFIG_NET=y
Expand Down Expand Up @@ -280,6 +283,10 @@ CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SMACK=y
CONFIG_SLAB=y
CONFIG_SQUASHFS_LZ4=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_XZ=y
CONFIG_SQUASHFS=y
CONFIG_SYN_COOKIES=y
CONFIG_SYSVIPC=y
Expand All @@ -288,6 +295,7 @@ CONFIG_TASKSTATS=y
CONFIG_TIPC=y
CONFIG_TMPFS=y
CONFIG_TUN=y
CONFIG_UBIFS_FS=y
CONFIG_UDF_FS=y
CONFIG_UFS_FS=y
CONFIG_UNIX=y
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13 changes: 13 additions & 0 deletions configs/6.13/all-common.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -62,6 +62,10 @@ CONFIG_DUMMY=y
CONFIG_ECRYPT_FS=y
CONFIG_EFS_FS=y
CONFIG_EMBEDDED=y
CONFIG_EROFS_FS=y
CONFIG_EROFS_FS_ZIP_DEFLATE=y
CONFIG_EROFS_FS_ZIP_LZMA=y
CONFIG_EROFS_FS_ZIP_ZSTD=y
CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_F2FS_CHECK_FS=y
Expand Down Expand Up @@ -141,6 +145,7 @@ CONFIG_IPV6_SIT_6RD=y
CONFIG_IPV6_TUNNEL=y
CONFIG_ISO9660_FS=y
CONFIG_JFFS2_COMPRESSION_OPTIONS=y
CONFIG_JFFS2_FS_XATTR=y
CONFIG_JFFS2_FS=y
CONFIG_JFFS2_LZO=y
CONFIG_JFFS2_RUBIN=y
Expand Down Expand Up @@ -172,6 +177,8 @@ CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD=y
CONFIG_MTD_NAND=y
CONFIG_MTD_UBI_BLOCK=y
CONFIG_MTD_UBI=y
CONFIG_NAMESPACES=y
CONFIG_NCP_FS=y
CONFIG_NET=y
Expand Down Expand Up @@ -289,6 +296,11 @@ CONFIG_SECURITY_SELINUX_BOOTPARAM=y
CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_SECURITY_SMACK=y
CONFIG_SLAB=y
CONFIG_SQUASHFS_LZ4=y
CONFIG_SQUASHFS_LZO=y
CONFIG_SQUASHFS_XATTR=y
CONFIG_SQUASHFS_XZ=y
CONFIG_SQUASHFS_ZSTD=y
CONFIG_SQUASHFS=y
CONFIG_SYN_COOKIES=y
CONFIG_SYSVIPC=y
Expand All @@ -297,6 +309,7 @@ CONFIG_TASKSTATS=y
CONFIG_TIPC=y
CONFIG_TMPFS=y
CONFIG_TUN=y
CONFIG_UBIFS_FS=y
CONFIG_UDF_FS=y
CONFIG_UFS_FS=y
CONFIG_UNIX=y
Expand Down
1 change: 1 addition & 0 deletions nix/config-tools.nix
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Expand Up @@ -32,6 +32,7 @@ let
CONFIG_KALLSYMS_ALL = "OSI symbol resolution reads kallsyms";
CONFIG_KPROBES = "penguin's kprobe-based instrumentation";
CONFIG_DEBUG_INFO = "dwarf2json builds the ISF from DWARF; no debug info, no ISF";
CONFIG_SQUASHFS_XZ = "xz is the dominant squashfs compressor in firmware. CONFIG_SQUASHFS=y without it mounts nothing: firmware that loop-mounts a nested squashfs at boot fails EINVAL and reads downstream as a broken extraction, not a kernel config";
};

# ---------------------------------------------------------------------
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