762536b5bf
live-build/auto/config: Take into account SUBPROJECT when setting seeded
...
snaps, and also make sure we can work with snaps seeded in project hooks.
7 years ago
301fdd2e02
Don't write config/seeded-snaps if no snaps have been seeded.
7 years ago
2219f62998
* live-build/auto/config: Clean out unused hostname matches and fix indenting.
...
* live-build/auto/config: Reinstate hostname filtering for "*.buildd", which
is the correct match for non-lxd builders, and add "lp-*" for the lxd ones.
* live-build/auto/config: Fix incorrect quoting causing a skipped if statement
in non-live ubuntu-server builds since sometime in mid-October of last year.
7 years ago
925e470693
Fix incorrect shell variable quoting.
7 years ago
2c40db69bc
Update hostname matches for launchpad buildds to match current practice,
...
fixing build failures due to LP being unable to reach
people.canonical.com.
7 years ago
72edc20589
Set ports/archive as appropriate for default mirror - should fix
...
autopkgtests.
7 years ago
9e09b3172c
Set a default archive mirror - needed for germinate.
7 years ago
42a6450584
Oops. I shouldn't reference my private stuff.
7 years ago
284240feb5
releasing package livecd-rootfs version 2.491
7 years ago
9bd0fd192f
Specify seeds for all flavours too
7 years ago
9978fd7b39
Support seeding of snaps, as emitted by germinate >= 2.27.
7 years ago
77de6a289f
snap: Add BASE_SEED for all desktop flavours
7 years ago
26612d0b26
snap: move the seeding block down, so that it is common to all flavours
7 years ago
d41cc70bf5
ubuntu-cpc: Initramfs compression should match runtime default (LP: #1744114 )
...
Cloud images created from the 'ubuntu-cpc' project use lzma initramfs
compression for the initial initramfs shipped in the image; this is the
default for livecd-rootfs. When a user updates the initramfs (or installs
a new kernel) on a running instance created from a cloud image they will
get gzip compression, which is the default shipped in initramfs-tools.
With this patch the compression method used to create the initramfs in
the initial cloud images will match the compression menthod used when
the end-user creates/updates an initramfs, namely gzip compression.
7 years ago
df89bff043
Drop Nexus 7 support
7 years ago
34dd1fb2f4
Revert to building minimized and not minimimized images with the same ~2.2 GiB size
7 years ago
07873ec528
Support seeding of snaps
...
We run germinate during configure, and read from each resulting <seed>.snaps
file (expanded from STRUCTURE) to find out which snaps to seed. This is written
to config/seeded-snaps, which is read during build to download each one.
7 years ago
0113b9aad7
self-review
7 years ago
26753602fe
Move casper from filesystem.squashfs to installer.squashfs.
7 years ago
532bd5b5ed
Build minimized images in a 1GiB image
7 years ago
89e87b4c2c
Set LB_ISO_PREPARER to livecd-rootfs to avoid unbound variable in default string
7 years ago
49e17b717e
Fix lingering reference to livecd-rootfs.ubuntu-core.model-assertion
...
that breaks the ubuntu-core image build.
7 years ago
f384f10867
Merge lp:~vorlon/livecd-rootfs/minimize-round-two
7 years ago
7c07f8a65b
Change ubuntu-core image builds to use the standard "$PREFIX" naming for
...
artifacts instead of being gratuitously different; requires a matching
change to ubuntu-cdimage.
7 years ago
02246dbf84
move configuration bits into live-build/auto/config from live-build/auto/build, per Adam
7 years ago
78da9b579b
Per the suggestions, we exclude all binary hooks when IMAGEFORMAT is none.
7 years ago
c260534758
Add the IMAGEFORMAT=none to support generating a single rootfs.
7 years ago
d24ca0490b
Pass --cache false to lb config; otherwise we copy around caches of
...
.debs that are never used properly, and which prevent us from emptying
/var/cache/apt in images.
7 years ago
314655a2ae
Skip installing server task when building minimial images
7 years ago
d6bb42bc63
Use kvm kernel only on amd64
7 years ago
4204faa484
If we're not on xenial and don't have extra ppas, don't try to use the kvm flavor for minimal images since it's not currently available.
7 years ago
fffec4782f
skip installation of kernel headers for all minimal images
7 years ago
a85cf55f29
Use kvm kernel flavor for minimized cloud image, not virtual
7 years ago
f0cb85a506
When SUBPROJECT environment variable is not set assume it to be ""
7 years ago
2ef2aee456
Use SUBPROJECT=minimized name instead of SUBPROJECT=minimize for consistency
7 years ago
95890f6713
We probably still want sudo, even in a minimal image.
7 years ago
e6bbe5f8a5
Export the subproject into config/chroot and config/binary, so that this
...
information is available to per-project hooks that need to be
subproject-aware (e.g., to skip steps when SUBPROJECT=minimize)
7 years ago
abbbeb8fda
Begin adding support for a project-independent 'minimize' subproject,
...
which (ironically) omits ubuntu-minimal in favor of using only the
minbase package set.
7 years ago
8a8d203743
* Add a test for SUBPROJECT when PROJECT comes to ubuntu-server.
...
* Use notations "0/1" instead of "false/true" as a value for GENERATE_ROOTFS_ONLY.
7 years ago
726e6192e0
auto/config: enable Debug::pkgDepCache::AutoInstall so tracking down
...
dependency bugs in the livefs is a little clearer.
8 years ago
23d9db863e
Add cm3 as a known ubuntu-core image type. LP: #1698223 .
8 years ago
1260f67b8a
Build ubuntu back with tasks. The metapackage switch was due to g++ transition
...
and needed some additional hint. This is adding maintenance and as mentioned
in 2.335, we can revert this.
8 years ago
0d82c84cdf
Update the file based on gilir's feedback
8 years ago
538c89f984
Set correct tasks for Lubuntu
8 years ago
d463581569
Merge in lp:~ubuntu-core-dev/livecd-rootfs/zesty-proposed for the changes that landed in zesty but previously missing in livecd-rootfs trunk.
8 years ago
2e21d6d6b1
The ubuntu-server:live should use a casper-based initramfs to work
...
correctly. (LP: #1682460 )
8 years ago
03c991faef
Setup kernel properly for ubuntu-server:live; we *do* want to build
...
kernel-generic and initrd-generic for this image. (LP: #1682460 )
8 years ago
0109d5304e
Optionally use ubuntu-image for building snap based images
8 years ago
f807c3703a
Allow overriding IMAGEFORMAT even for ubuntu-cpc and ubuntu-server
8 years ago
4613a2c82e
Don't outright remove fstab for ubuntu-server:live, that breaks grub-legacy-ec2.
8 years ago
46bae4cebf
Fix up functions refactoring tfor a proper path to the file.
8 years ago
ab949fac18
Rename ubuntu-server-live -> ubuntu-server
8 years ago
e577ed7672
Rename to ubuntu-server-live; some build process fixes.
8 years ago
6978674cfe
Add cloud-init for subiquity image.
8 years ago
86b64ef78e
Move curtin to installer squash.
8 years ago
d5a6f5cbe3
Add 'ubuntu-server-next' subiquity image.
8 years ago
7b576e4c4d
Set device_tree_address for the new kernel in the RPi bootloader config.txt
8 years ago
1af12f76b7
correct indentation - should be tab not spaces
8 years ago
c85df9e50f
add changes for Ubuntu Budgie build config
8 years ago
4a2d7ecf31
Merge lp:~laney/livecd-rootfs/lp1627190 - don't purge .pyc files any more
8 years ago
d43c01c60b
Update the ubuntu-touch hints to try installing ubuntu-system-settings instead of ubuntu-system-settings-online-accounts.
8 years ago
d7eecc3805
live-build/auto/config: Don't remove .pyc files any more - we don't care
...
*that* much about the small space gain these days, and would prefer the
speed win. (LP: #1627190 )
8 years ago
1d71b6d5ab
Use the virtual kernel for the arm64 cpc images instead of generic.
8 years ago
95d4c0b767
Use the virtual kernel for the powerpc64 cpc images (LP: #1625368 )
8 years ago
15b69c4ddf
Install nplan in the ubuntu-core image.
8 years ago
4040816ca7
Add Lubuntu Next image
9 years ago
9608064276
ubuntu-pd is dead, long live ubuntu-touch-custom - introduce a new project ubuntu-touch-custom that is exactly the same as ubuntu-touch but uses a separate cdimage project (separate builder space).
9 years ago
cbbcb721a4
Ubuntu MATE seeds now follow Recommends:
9 years ago
b3cc872df5
Swap order of security and updates in dvd sources.list.
9 years ago
8cd6c20291
Move touch resolution hints to a HINTS variable, and adjust for use
...
on dual-stack gl/gles arches where things don't quite work right.
9 years ago
1463239cb2
Stop explicitly removing systemd-sysv for touch.
9 years ago
56e798bcbd
add u-boot-tools to all snappy arches, drop flash-kernel from snappy, create /boot/uboot dir on all snappy arches and configure /etc/fw_env.config
9 years ago
baf4f47379
Drop special-casing of ubuntu-core:system-image in places, now that
...
ubuntu-core unambiguously refers to the snappy Ubuntu Core image.
9 years ago
8b79962b99
Rename old ubuntu-core tarballs to ubuntu-base to avoid confusion.
9 years ago
0b1c0642f7
add multiverse to sources.list for snappy kernel builds
9 years ago
03f89315cc
add multiverse to sources.list for snappy kernel builds
9 years ago
4eae5fbf1d
Follow linux-firmware-raspi2 renaming in the archive for raspi2 images.
9 years ago
57c110d861
Transition from ubuntu-snappy to ubuntu-core-snapd-units and snapd.
9 years ago
4d25373897
live-build/ubuntu-core/hooks/25-create-generic-initrd.chroot create a generic initrd inside the snappy os-snap
9 years ago
2909aba4b5
Enable building of powerpc cloud images.
9 years ago
5ac47abce7
Remove obsolete pvr-omap4 special-casing to simplify configs.
9 years ago
af517f422a
Follow rename of ubuntustudio-font-meta to ubuntustudio-fonts.
9 years ago
753bd8acd0
remove grub-efi-arm64 to the arm64 OS snap as it breaks uboot
9 years ago
d77a731d63
Build raspi2 images with multiverse for firmware.
9 years ago
f94b5db6e3
add grub-efi-arm64 to the arm64 OS snap
9 years ago
6f6fb2834b
Refactor ubuntu-cpc hooks to hard-code producing an 'ext4' rootfs, which
...
is used outside of the livecd-rootfs build process (specifically for EC2
publication).
9 years ago
cbbb38a364
Add net.ifnames=0 to the raspi2 cmdline injected into raspi2 builds.
9 years ago
1d428db1ab
Switch to passing the raspi2 boot options entirely via cmdline.txt to match the latest flash-kernel change
9 years ago
a92bf11406
Initial support for raspi2 subarch.
9 years ago
0b279f731b
Refactor ubuntu-cpc hooks to always produce a 'plain' rootfs via
...
live-build and reuse this for the tarball, instead of lb_binary_rootfs
creating some artifact that we ignore / throw away.
9 years ago
4f55631a9f
Refactor/reorder ubuntu-cpc support for consistency with other flavors,
...
so that subarch overrides can be applied correctly.
9 years ago
74633563d8
make sure u-boot-tools is installed on snappy arm64
9 years ago
5bc78bede3
add raspi2 device tarball creation. separate snappy device tarball builds completely from the rootfs. drop old way of in-tree device tarball creation for snappy
9 years ago
216762748b
Move building of all architecture-specific CPC artifacts in to
...
Launchpad.
9 years ago
49f1896c8d
live-build/auto/config: add note about seeding
9 years ago
912e02dc1e
do not hardcode installation of grub-pc for amd64 in snappy images, instead install the right grub set for secureboot there
9 years ago
fe696a8bb9
merged lp:~sil2100/livecd-rootfs/pocket-desktop
9 years ago
a559b98c8b
Install the meta package as part of one add_package install call.
9 years ago
57f0507518
As suggested by Colin, first add the meta packages, then the other deps.
9 years ago
e0fcd94074
Switch to the project approach, add a symlink for the hooks
9 years ago
5907a20a56
Fix indent
9 years ago
a382f7e64a
Drop 'landscape-client' from Cloud Images (LP: #1497030 ).
9 years ago
e4744f68ce
Ok, again try convincing people that using a subproject here is the way to go...
9 years ago
0601725f85
add ppp and watchdog to snappy image
9 years ago
48faa53d7b
merge lp:~sil2100/livecd-rootfs/deb-src_for_extra_ppas to include deb-src lines for extra ppa sources.list entries
10 years ago
751153543a
merge change for 2.335 from the archive
10 years ago
c3b8dc32b1
Remove walinuxagent
10 years ago
26fcda4616
Set kernel flavours variable to try to fix amd64 build
10 years ago
e51446f712
remove trailing tab
10 years ago
6b7611c6e3
ubuntu-core-system-image: fix indentation
10 years ago
036bf55f06
Copy desktop-next hooks in the configuration
10 years ago
b79dcfc1b7
Experimenting transforming ubuntu-desktop-next to a system-image base
10 years ago
6835c86edc
Conditionalize copying extra-ppas.pref.chroot around
10 years ago
6eddccab54
* live-build/auto/config:
...
- add grub-efi-ia32-bin for i386 for efi support
10 years ago
e79e2e6493
live-build/auto/config: Handle applying priorities to EXTRA_PPAS
...
via the extra_ppa="user/ppaname:priority" syntax (LP: #1450257 )
10 years ago
db631a4d2f
fix some typo and take colin's feedback into account
10 years ago
c59f8ebacd
removed the part that is in the seed and ubiquity
10 years ago
b35e94e457
add build main configs
10 years ago
91e0450507
shuffle install order around
10 years ago
5e5abfdb83
* live-build/auto/config:
...
- remove resolvconf, click-apparmor, dosfstools
10 years ago
8c51ae1b4d
remove click-hook-framework
10 years ago
164c195a3a
Set ext image options.
10 years ago
e9b8a62a5a
Get the right package sets for arm* and ppc64el.
10 years ago
ef9f3be0de
Install the correct kernels on each arch.
10 years ago
941d2b3ae1
Add our own hook.
10 years ago
d4598f8326
Get images building without our custom live-build.
10 years ago
e5651db1a7
Get an image that looks about right building.
10 years ago
c96f3ee088
add ubuntu-system-settings-online-accounts to ubuntu-touch
10 years ago
8638bb4db9
touch: Explicitly uninstall systemd-sysv, to help apt to install upstart
...
when the preferred "init" alternative is systemd-sysv. Also explicitly
install packagekit to help the problem resolver. Thanks Colin Watson!
(LP: #1428026 )
10 years ago
74d4fd5228
touch: don't depend on mir-platform-graphics-android and let that to be
...
handled by the seeds (they can't stop bumping the package name and the
graphics-mesa package doesn't cause any harm)
10 years ago
bb12ddb0e3
add dosfstools on snappy to ensure systemd can fsck the /boot
...
partition
10 years ago
94a77fcb8b
* live-build/auto/config:
...
- add snappy-ubuntu
10 years ago
e97e25472e
touch: forcing package mir-platform-graphics-android to see if we're able
...
to remove the dependency on the mesa one (until mir is properly fixed)
10 years ago
a353cd0406
touch: removing dependencies on a specific mir platform driver as mir can
...
now identify and load the correct driver during runtime
10 years ago
a0c319884d
- live-build/auto/config: add config for Ubuntu MATE.
...
- also fold +ppa* changes into just one version 2.276.
10 years ago
c58da8adfa
Refactored based on merge proposal feedback.
10 years ago
4a31290a0f
use generic kernel for all ubuntu-core system-image
10 years ago
0ba451f9df
Bump the hardcoded libmirplatform driver version for ubuntu-touch
10 years ago
ec95236c23
Add support for Ubuntu MATE.
10 years ago
818be95bf2
* live-build/auto/config:
...
- add click-apparmor for system-image
10 years ago
d6df152ead
bump the hardcoded libmirplatform driver version for ubuntu-touch
10 years ago
fcfe7d613a
* live-build/auto/{build,config}:
...
- create device-azure.tar.gz during the build that includes the
packages for the azure cloud
* live-build/ubuntu-core/hooks/400-create-apt-get-warning.binary:
- display helpful message to use snappy when a user tries to use
apt-get on a snappy system
* live-build/ubuntu-core/hooks/500-move-kernel-to-device-tar.binary:
- do the device-azure.tar.gz extraction here
* live-build/ubuntu-core/hooks/12-add-docker-user.chroot:
- ensure docker group is used
10 years ago
de1a889d17
add click-hook-framework
10 years ago
8af855c26d
* live-build/auto/config:
...
- system-image: do not install ubuntu-minimal
- system-image: install KERNEL_FLAVOURS=virtual on i386/amd64
- system-image: use "--linux-packages=linux-image"
10 years ago
d142da3fbb
* live-build/auto/config:
...
- also install flash-kernel/u-boot-tools in the armhf system-image,
thanks to Adam Conrad
10 years ago
d1aed3dd90
* live-build/auto/config:
...
- explicitly set KERNEL_FLAVOURS=generic to get the right kernel
on armhf
10 years ago
1d9ee67e4e
merge fixes from the ubuntu-system-image PPA
10 years ago
4570a8250f
Update hardcoded libmir*-android installations for Mir 0.8.0.
10 years ago
5529dcea7a
do not install recommends in system-image
10 years ago
2c6b1246b4
live-build/auto/config: Use ubuntukylin-live task for ubuntukylin, not
...
ubuntu-live (LP: #1372731 ).
10 years ago
8f99537f39
live-build/auto/config: Use ubuntukylin-desktop task for ubuntukylin,
...
not ubuntu-desktop.
10 years ago
9d264ef529
ubuntu-core: Add click-systemd to preinstalled image (currently only in
...
a PPA, so can't use tasks for this).
11 years ago
49c93a618b
Only add the ubuntu-core hooks for the system-image subproject.
11 years ago
f764b07ebf
[r=cjwatson] ubuntu-core: Run setup hooks as done for ubuntu-touch.
11 years ago
a3ff57899e
live-build/auto/config: Add configuration for new kubuntu-plasma5
...
flavour.
11 years ago
5d24b90fcd
* live-build/auto/config: Enable universe for system-image ubuntu-core
...
sub-project which requires 'system-image-cli'.
11 years ago
46c8a87152
normalise whitespace
11 years ago
de8c39ff98
* ubuntu-core: Run setup hooks as done for ubuntu-touch.
11 years ago
e583d515d7
Hard-code installation of libmirclientplatform-android and
...
libmirplatformgraphics-android to avoid accidentally pulling in the
-mesa variants that are preferred as dependencies of libmirclient and
libmirserver.
11 years ago
b4da1a2239
install the kernel in the system-image subproject
11 years ago
22ce1e0085
live-build/auto/config: when run with SUBPROJECT=system-image add ubuntu-core task to the ubuntu-core build
11 years ago
824344f4a0
Pass --mirror-binary in the ubuntu-rtm case too; this isn't inherited
...
from the bootstrap mirror.
11 years ago
39d74ced11
Pass --mirror-chroot-security and --mirror-binary-security in the
...
ubuntu-rtm case, as the default of http://security.ubuntu.com/ubuntu/
isn't going to have ubuntu-rtm suites.
11 years ago
09f615034a
Apply a grievous hack to get debootstrap working against ubuntu-rtm
...
series.
11 years ago
a0abe0888b
Disable apt authentication checks when building ubuntu-rtm images
...
against dogfood (that test archive is signed, but not with a very useful
key).
11 years ago
4552e515ce
Use the soon-to-exist ubuntu-rtm archive for ubuntu-touch builds if
...
SUBPROJECT is ubuntu-rtm (or ubuntu-rtm/dogfood for the dogfood
version).
11 years ago
8fa8c644c2
Install linux-signed-generic directly in live passes rather than relying
...
on it being in the corresponding tasks. linux-signed-generic shouldn't
be in a task because that expands to ABI-versioned packages, and tasks
can't be updated post-release.
11 years ago
d04c2c068b
drop the default creation of SWAP.swap files for all preinstalled devices
11 years ago
4150b7a896
Add ubuntu-sdk-libs too
11 years ago
f41714bd5b
ubuntu-desktop-next: Use the Task fiels that the archive now has for this
...
project.
11 years ago
4923df1abf
The EXTRA_ARCHIVES environment variable defined in 2.212 doesn't quite
...
work properly because it doesn't allow for signing key configuration.
Rename it to the more domain-specific EXTRA_PPAS (which is now a
space-separated sequence of <ppa-owner>/<ppa-name> pairs), and fetch
signing keys for those from Launchpad using python3-software-properties.
11 years ago
c34a62ec3b
normalise whitespace
11 years ago
83c397cf2e
live-build/auto/config: If EXTRA_ARCHIVES is set in the environment,
...
dump its value into config/archives/extra-archives.list.chroot and
config/archives/extra-archives.list.binary. This makes it easier for a
builder to build an image against an additional PPA.
11 years ago
3ce6f0c289
Add an ubuntu-desktop-next project for building a desktop flavour
...
including Unity 8 and the applications developed for Ubuntu Touch.
11 years ago
23beed5123
Install the metapackage from the seed instead of just the session
...
nb: can't use the task as this isn't generated yet
11 years ago
0ebe5e57b1
Add unity8 flavour
11 years ago
34ea5156cf
live-build/auto/config: Pass any additional command-line arguments on to
...
"lb config".
11 years ago
2fa8a6f24e
Add the minimal task to ubuntu-core to preserve brand consistency.
11 years ago
0b0c108526
Explicitly add the ubuntu-desktop task to Edubuntu builds, so that any
...
ambiguous dependencies resolved by the contents of the ubuntu-desktop
task are actually resolved reliably.
11 years ago
741ff8d8d1
Log the hostname at the start of the build.
11 years ago
a80bcd80d6
Do the same trick as in 2.158 for kubuntu armhf+omap4 too.
12 years ago
e0fda22c01
Collapse case statement into one for $ARCH+$SUBARCH since it only checks for armhf+omap4
12 years ago
bfde7e4938
Missing 'install'
12 years ago
725d1c6ca3
On armhf+omap4, stop using the ubuntu-desktop task and use the metapackage instead
...
The task pulls in the X stack which the metapackage does not. We can take
advantage of this to install the omap-revert X stack that's needed for these
images.
12 years ago
93fb97a202
add the xserver omap-revert packages to panda builds
12 years ago
6ff0b8e618
fix buildstamp creation for ubuntu-touch
12 years ago
557de06383
try to hand the exported $NOW over from live-build/auto/config as $BUILDSTAMP
12 years ago
c69174945c
drop setting manual options for getting an ubuntu-touch preinstalled tarball, we set -f plain in cdimage to get proper configuration already
12 years ago
902d0c9338
Revert squashfs change for ubuntu-touch; it may come in handy after all, since it's smaller.
12 years ago
307dc8a8d5
Disable zsync for ubuntu-touch images.
12 years ago
0d6b6f5113
Don't build a squashfs for ubuntu-touch images.
12 years ago
73a02f22f0
Use gzip compression for ubuntu-touch tarballs.
12 years ago
361c7f03dc
Don't include lupin-casper in ubuntu-touch images.
12 years ago
dc5e9931d0
Install metapackages rather than tasks for ubuntu-touch, since it still
...
relies on PPAs and those don't have tasks.
12 years ago
95246a6553
live-build/auto/config, live-build/ubuntu-touch: Copy a huge pile of
...
customisation by Ricardo Salveti from
lp:~phablet-team/touch-preview-images/ubuntu-build-phablet, which should
be close to enough for the architecture-independent parts of
ubuntu-touch builds.
12 years ago
ee1909ade6
live-build/auto/config: Add basic ubuntu-touch enablement (based on
...
patch from Oliver Grawert, for which thanks).
12 years ago
464cdd3e4c
live-build/auto/config: Run the ubuntukylin-default-settings chroot
...
hook.
12 years ago
f21a32bcaf
Revert changes in 2.113. This needs to be done in cdimage/debian-cd
...
instead.
12 years ago
2140c6cce9
live-build/auto/config: Set gfxboot default language to zh_CN for
...
UbuntuKylin.
12 years ago
9443070b24
live-build/auto/config: Add ubuntu-gnome project (LP: #1152818 )
12 years ago
Mathieu Trudel-Lapierre
Iain Lane
Adam Conrad
Steve Langasek
Robert C Jennings
Balint Reczey
Michael Hudson-Doyle
Gary.Wzl
Didier Roche
Simon Quigley
David Mohammed
Łukasz 'sil2100' Zemczak
Martin Wimpress
Oliver Grawert
Daniel Watkins
Colin Watson
Michael Vogt
Ben Howard
Sergio Schvezov
Sebastien Bacher
Iain Lane
Didier Roche
Martin Pitt
Ricardo Salveti de Araujo
Mathieu Trudel-Lapierre
Ubuntu MATE Developers
James Hunt
Jeremy Bicha