[Bug 1950469] [NEW] casper: zcat missing in busybox

[a1bert]

Public bug reported:

lsb_release -rd
Description: Ubuntu 20.04 LTS
Release: 20.04
(custom debootstrap created filesystem.squashfs)

apt-cache policy casper
casper:
  Installed: 1.445
  Candidate: 1.445
  Version table:
 *** 1.445 100
        100 /var/lib/dpkg/status

casper-snapshot restoration during boot is not working because casper is
trying to use zcat but zcat is not available (not compiled in busybox)

error in casper.log:

/init: line 376: zcat: not found

FIX: use gzip -dc

** Affects: casper (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: casper casper-snapshot

** Patch added: "replace zcat with gzip -dc"
   https://bugs.launchpad.net/bugs/1950469/+attachment/5539574/+files/zcat2gzip.patch

** Summary changed:

- caspe:  zcat missing in busybox
+ casper:  zcat missing in busybox

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https://bugs.launchpad.net/bugs/1950469

Title:
  casper:  zcat missing in busybox

Status in casper package in Ubuntu:
  New

Bug description:
  lsb_release -rd
  Description: Ubuntu 20.04 LTS
  Release: 20.04
  (custom debootstrap created filesystem.squashfs)

  apt-cache policy casper
  casper:
    Installed: 1.445
    Candidate: 1.445
    Version table:
   *** 1.445 100
          100 /var/lib/dpkg/status

  casper-snapshot restoration during boot is not working because casper
  is trying to use zcat but zcat is not available (not compiled in
  busybox)

  error in casper.log:

  /init: line 376: zcat: not found

  FIX: use gzip -dc

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