Since the ubi/ubifs test has been introduced, it's not possible to
boot the same ubi image twice [1]:
"TODO: if you boot Qemu twice on the same UBI image, it fails to
attach the image the second time, with "ubi0 error:
ubi_read_volume_table: the layout volume was not found"."
For some reason, the kernel corrupt the ubi image if the ubifs
rootfs is mounted with write access. Use a custom config file
to mount the rootfs readonly (vol_type=static). Doing so requires
to add the flash size (vol_size=64MiB).
At least it allows to boot several times the same ubi image.
[1] bf4a6490e4
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The current ubi/ubifs test (test_ubi.py) rely on a Qemu bug present in
2.8.0 that was fixed in Qemu 2.9.0 [1]. The ubi/ubifs settings is
updated to run with Qemu >= 2.9.0 using the new multiple chip handling.
If needed, the old behavior can be enabled using the pflash01 property
"old-multiple-chip-handling" [2].
The issue was not detected until now since we are sill using an old
qemu (2.8 from Debian stretch) for testing in gitlab (using the
Buildroot Docker image used by gitlab-ci.yml).
First the logical eraseblock size (LEB) must be updated to the value
0x3ff80 reported by the kernel when using qemu >= 2.9.0.
UBIFS (ubi0:0): Mounting in unauthenticated mode
UBIFS error (ubi0:0 pid 1): ubifs_read_superblock: LEB size mismatch: 524160 in superblock, 262016 real
UBIFS error (ubi0:0 pid 1): ubifs_read_superblock: bad superblock, error 1
But the system is still failing to boot:
UBIFS error (ubi0:0 pid 1): ubifs_scan: garbage
UBIFS error (ubi0:0 pid 1): ubifs_recover_master_node: failed to recover master node
ubifs is reading garbage since Qemu >= 2.9.0 report a sector
length per device divided by the number of devices (see commit [1]).
The kernel detect two flash devices (dmesg):
Concatenating MTD devices:
(0): "40000000.flash"
(1): "40000000.flash"
into device "40000000.flash"
Divide the physical eraseblock (PEB) size by two.
Tested with qemu 2.9.0, 5.1.0.
Fixes:
https://gitlab.com/kubu93/buildroot/-/jobs/1543100932
[1] https://git.qemu.org/?p=qemu.git;a=commitdiff;h=feb0b1aa11f14ee71660aba46b46387d1f923c9e
[2] http://lists.busybox.net/pipermail/buildroot/2021-September/622069.html
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Adding the Image format on the Qemu command line avoid this warning:
"WARNING: Image format was not specified for 'output/TestUbi/images/rootfs.ubi' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
Specify the 'raw' format explicitly to remove the restrictions."
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Currently many test cases call subprocess.check_output on their own.
Factor out that code to an infra method so the call get standardized.
This will be handful when switching the test infra to use Python 3.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Do the same as other fs tests and minimally check the ubi image before
booting.
The call to 'file' was already there, but the output wasn't tested for
some unknown reason. Add the assert for the output of the command.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Fix the trivial warnings from flake8:
- remove modules imported but unused;
- use 2 lines before class or module level method;
- remove blank line at end of file.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Change all defconfig fragments to take advantage of
"cf3cd4388a support/tests: allow properly indented config fragment".
Make each defconfig fragment:
- start after a backslash;
- be declared as a multi-line string literal;
- be indented one level more than the variable that contains it.
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit adds a number of test cases for various filesystem formats:
ext2/3/4, iso9660, jffs2, squashfs, ubi/ubifs and yaffs2. All of them
except yaffs2 are runtime tested. The iso9660 set of test cases is
particularly rich, testing the proper operation of the iso9660 support
with all of grub, grub2 and isolinux.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
