# dpkg-query -W kmod
kmod 27-1ubuntu2
# modinfo ./zstd.ko.zst
modinfo: ERROR: Module alias ./zstd.ko.zst not found.
upgraded to new kmod:
# dpkg-query -W kmod
kmod 27-1ubuntu2.1
# modinfo ./zstd.ko.zst
filename: /lib/modules/5.4.0-109-generic/kernel/crypto/./zstd.ko.zst
alias: crypto-zstd
alias: zstd
description: Zstd Compression Algorithm
license: GPL
srcversion: C007A20DBED7E012AF5A0A8
depends: zstd_compress
retpoline: Y
intree: Y
name: zstd
vermagic: 5.4.0-109-generic SMP mod_unload modversions
sig_id: PKCS#7
signer: Build time autogenerated kernel key
sig_key: 2E:88:51:F0:25:CE:CD:BB:F2:FC:76:4E:F5:71:F2:A4:3F:3E:DC:F3
sig_hashalgo: sha512
signature: 62:91:50:E8:5F:FA:96:05:E8:CA:F4:9F:03:0A:5A:56:04:02:37:2D:
06:56:A8:A7:40:02:95:61:78:5F:F3:73:8B:EB:EA:FB:62:F6:B1:B7:
68:4F:A7:87:88:44:E1:85:41:C9:ED:BB:CD:34:02:A1:3E:7A:9A:E8:
D8:24:84:94:64:D3:9F:FE:A7:3A:91:10:F3:90:B1:E7:71:25:26:BA:
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C7:D6:C6:8E:14:D1:A6:F0:0B:03:4C:33:68:E8:75:29:93:E6:4F:AE:
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2F:09:C2:46:A6:98:55:47:16:92:EF:28:AB:41:9E:4D:E8:03:2C:21:
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CE:B4:5B:A3:D9:9A:79:72:23:47:49:E0:69:B2:ED:44:E8:7F:7C:D6:
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21:B9:EB:59:54:99:A9:93:02:D3:32:F5:D0:43:05:62:ED:C6:E9:4B:
F9:09:9D:40:A2:83:74:25:65:30:BF:59:3A:42:64:28:94:9C:34:79:
42:59:81:22:CE:D0:80:56:A4:65:F8:A0:11:20:0F:A9:F2:F6:52:8C:
D1:04:F6:D8:09:D0:D4:66:6E:21:12:AB:68:FD:34:1C:59:AF:9F:E9:
AD:5C:A5:6F:AC:51:80:41:4C:62:28:A1:51:5B:C9:E0:C1:17:44:F1:
A2:92:1E:39:00:07:96:E6:90:D9:CC:94
** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-done verification-done-focal
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to kmod in Ubuntu.
https://bugs.launchpad.net/bugs/1933491
Title:
kmod add zstd support
Status in kmod package in Ubuntu:
Fix Released
Status in kmod source package in Focal:
Fix Committed
Status in kmod source package in Impish:
Fix Released
Status in kmod source package in Jammy:
Fix Released
Status in kmod package in Debian:
New
Bug description:
[Impact]
* To safe diskspace, upcoming devel series / hwe kernels may turn on
zstd kernel module compression. Kmod since impish support zstd
support. But in order to keep hwe kernels at parity, or allow
inspecting jammy modules from focal host, it would be beneficial for
kmod in focal to support zstd compressed modules.
[Test Plan]
* Pick any kernel module
* Compress it with zstd: $ zstd *.ko
* Check that modinfo can read it: $ modinfo *.ko.zst
[Where problems could occur]
* kmod will gain a new dependecy on libzstd1, however it should
already be present, because dpkg in focal depends on libzstd1 already.
* initramfs-tools already supports compressed modules, but in focal
at the moment it does so in an inefficient manner (regresses
bootspeed), this has been improved in
https://launchpad.net/ubuntu/+source/initramfs-tools/0.140ubuntu8 and
is yet to be SRUed into Focal.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/kmod/+bug/1933491/+subscriptions
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