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postmarketos-mkinitfs-hook-debug-shell: add debugfs mount (MR 2655)

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Very helpful and useful for debugging issues.

Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
This commit is contained in:
Alexey Minnekhanov 2021-10-31 23:21:10 +03:00
parent dc319b1ed7
commit 81c47a0912
No known key found for this signature in database
GPG Key ID: 6FE3B029D9D9FAFF
2 changed files with 10 additions and 4 deletions
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4
main/postmarketos-mkinitfs-hook-debug-shell/20-debug-shell.sh
View File

@ -46,6 +46,10 @@ telnetd -b "${IP}:${TELNET_PORT}" -l /telnet_connect.sh
if [ -d /sys/fs/pstore ]; then
mount -t pstore pstore /sys/fs/pstore || true
fi
# mount debugfs - very helpful for debugging
mount -t debugfs none /sys/kernel/debug || true
# make a symlink like Android recoveries do
ln -s /sys/kernel/debug /d
echo "---"
echo "WARNING: debug-shell is active on ${IP}:${TELNET_PORT}."

10
main/postmarketos-mkinitfs-hook-debug-shell/APKBUILD
View File

@ -1,6 +1,6 @@
pkgname=postmarketos-mkinitfs-hook-debug-shell
pkgver=0.1.1
pkgrel=5
pkgver=0.2
pkgrel=0
pkgdesc="Root shell in the initramfs (security hole, for debugging only)"
url="https://postmarketos.org"
depends="postmarketos-mkinitfs fbdebug evtest linuxconsoletools reboot-mode"
@ -17,5 +17,7 @@ package() {
"$pkgdir"/etc/postmarketos-mkinitfs/files/20-debug-shell.files
}
sha512sums="8de9bd415adc9ac09763e34bef1ac869105cf42377a233c2fad021b64b3a0a68883feddd056491ef3ce4a1cc892344337aea0898af3834c1396302aed128f782 20-debug-shell.sh
3274b01850dabe927bc3749f2b4b86eab02adc6954504352401e596e29e044aec512ccead68b471a8009aa8658fe698ffdc67e03c3ca55b7dd54d35c72ac620f 20-debug-shell.files"
sha512sums="
f405b50d22c0e06338bfd278cfdedc40a3089cec971e772d1b5bb7a1d7d586ed1ed45f7cdf628aeda28c8c1a62b41fb3b159b9e0a5ae07ac2895daf1275cb1df 20-debug-shell.sh
3274b01850dabe927bc3749f2b4b86eab02adc6954504352401e596e29e044aec512ccead68b471a8009aa8658fe698ffdc67e03c3ca55b7dd54d35c72ac620f 20-debug-shell.files
"