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| author | Tim Harvey <tharvey@gateworks.com> | 2020-04-01 10:23:12 -0700 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2020-04-03 12:17:45 +0200 |
| commit | ff6b092121ba96745553584f5a5b0897805edfc6 (patch) | |
| tree | 1ca056a6965c210d66e4d02e9bcfad46607a831d /target/linux/imx6/image | |
| parent | 4298339b238ae9be0692e800042cc25a61f87fad (diff) | |
| download | upstream-ff6b092121ba96745553584f5a5b0897805edfc6.tar.gz upstream-ff6b092121ba96745553584f5a5b0897805edfc6.tar.bz2 upstream-ff6b092121ba96745553584f5a5b0897805edfc6.zip | |
imx6: bootscript: use partition UUID for rootfs if possible
Specifying root filesystem by device is non-deterministic for several
reasons:
- USB device unmeration order is not garunteeed for USB storage devs
- MMC devs ordering is determined by the instance of the MMC host
controller including non-storage SDIO devices which can throw off
numbering depending on kernel versions.
It is recommended to use partition UUID
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Diffstat (limited to 'target/linux/imx6/image')
| -rw-r--r-- | target/linux/imx6/image/bootscript-ventana | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/target/linux/imx6/image/bootscript-ventana b/target/linux/imx6/image/bootscript-ventana index 941afb519a..734f74a30c 100644 --- a/target/linux/imx6/image/bootscript-ventana +++ b/target/linux/imx6/image/bootscript-ventana @@ -1,4 +1,4 @@ -echo "Gateworks Ventana OpenWrt Boot script v1.01" +echo "Gateworks Ventana OpenWrt Boot script v1.02" # set some defaults # set some defaults @@ -9,7 +9,7 @@ setenv bootargs console=${console},${baudrate} setenv loadaddr 10800000 setenv fdt_addr 18000000 -# detect dtype and bootdev by looking for kernel on media the bootloader +# detect dtype by looking for kernel on media the bootloader # has mounted (in order of preference: usb/mmc/sata) # # This assumes the bootloader has already started the respective subsystem @@ -31,18 +31,9 @@ else fi echo "detected dtype:$dtype" fi -if test -n "$bootdev" ; then - echo "Using bootdev from env: $bootdev" -else - if itest.s "x${dtype}" == "xmmc" ; then - bootdev=mmcblk0p1 - else - bootdev=sda1 - fi -fi +echo "Booting from ${dtype}..." if itest.s "x${dtype}" == "xnand" ; then - echo "Booting from NAND..." # fix partition name # OpenWrt kernel bug prevents partition name of 'rootfs' from booting # instead name the partition ubi which is what is looked for by @@ -52,9 +43,24 @@ if itest.s "x${dtype}" == "xnand" ; then setenv fsload ubifsload setenv root "ubi0:ubi ubi.mtd=2 rootfstype=squashfs,ubifs" else - echo "Booting from block device ${bootdev}..." setenv fsload "${fs}load ${dtype} ${disk}:1" - setenv root "root=/dev/${bootdev} rootfstype=${fs} rootwait rw" + part uuid ${dtype} ${disk}:1 uuid + if test -z "${uuid}"; then + # fallback to bootdev + if test -n "$bootdev" ; then + echo "Using bootdev from env: $bootdev" + else + if itest.s "x${dtype}" == "xmmc" ; then + bootdev=mmcblk0p1 + else + bootdev=sda1 + fi + fi + setenv root "root=/dev/${bootdev}" + else + setenv root "root=PARTUUID=${uuid}" + fi + setenv root "$root rootfstype=${fs} rootwait rw" fi setenv bootargs "${bootargs}" "${root}" "${video}" "${extra}" |