[Carmelocotonto]

Originally Posted by NiLuJe

@Carmelocotonto: You tripped the failsafe.

Which tells me you launched KOReader too early after boot.

Reinstall, then check the syslog after starting KOReader.

This is syslog (first lines). Libnm.so has not disappeared.

Spoiler:

May 7 20:17:53 syslogd started: BusyBox v1.22.0.kobo
May 7 20:17:53 nickel: ( 0.509 @ 0x16812f0 / sql.warning) ERROR ---------- QSqlError(11, "Unable to fetch row", "database disk image is malformed")
May 7 20:17:53 nickel: ( 0.510 @ 0x16812f0 / sql.warning) EXECUTED QUERY ---------- "UPDATE content SET WordCount = -1"
May 7 20:17:53 nickel: ( 0.510 @ 0x16812f0 / sql.warning) BOUND VALUES ---------- QMap()
May 7 20:17:53 nickel: ( 0.519 @ 0x16812f0 / sql.warning) int DbMigrations::migrateCloserToVersion(const Device&, QSqlDatabase&, int, int, const QVector<DbMigration*>&) newVersion == currentVersion! ==> Rolling back DB changes.
May 7 20:17:53 nickel: ( 0.589 @ 0x16812f0) FT_New_Face failed with index 0 : 0
May 7 20:17:54 nickel: ( 0.976 @ 0x16812f0) FT_New_Face failed with index 0 : 0
May 7 20:17:54 nickel: (NickelMenu) init: creating failsafe (src/init.c:24)
May 7 20:17:54 nickel: (NickelMenu) failsafe: allocating memory (src/failsafe.c:22)
May 7 20:17:54 nickel: (NickelMenu) failsafe: finding filenames (src/failsafe.c:26)
May 7 20:17:54 nickel: (NickelMenu) failsafe: ensuring own lib remains in memory even if it is dlclosed after being loaded with a dlopen (src/failsafe.c:35)
May 7 20:17:54 nickel: (NickelMenu) failsafe: renaming /usr/local/Kobo/imageformats/libnm.so to /usr/local/Kobo/imageformats/libnm.so.failsafe (src/failsafe.c:38)
May 7 20:17:54 nickel: (NickelMenu) init: checking for uninstall flag (src/init.c:32)
May 7 20:17:54 nickel: (NickelMenu) init: parsing config (src/init.c:40)
May 7 20:17:54 nickel: (NickelMenu) config: reading config dir /mnt/onboard/.adds/nm (src/config.c:65)
May 7 20:17:54 nickel: (NickelMenu) config: skipping /mnt/onboard/.adds/nm/. because not a regular file (src/config.c:88)
May 7 20:17:54 nickel: (NickelMenu) config: skipping /mnt/onboard/.adds/nm/.. because not a regular file (src/config.c:88)
May 7 20:17:54 nickel: (NickelMenu) config: reading config file /mnt/onboard/.adds/nm/config (src/config.c:93)
May 7 20:17:54 nickel: (NickelMenu) cfg(NM_CONFIG_TYPE_MENU_ITEM) : 1:Sincronizar DRIVE:0x6f66f0e9:/mnt/onboard/.adds/kobocloud/sincronizarDRIVE.sh (src/config.c:202)
May 7 20:17:54 nickel: (NickelMenu) cfg(NM_CONFIG_TYPE_MENU_ITEM) : 1:Sincronizar CASA:0x6f66f0e9:/mnt/onboard/.adds/kobocloud/sincronizarCASA.sh (src/config.c:202)
May 7 20:17:54 nickel: (NickelMenu) cfg(NM_CONFIG_TYPE_MENU_ITEM) : 1:Cargar Libros Nuevos:0x6f66ede1:rescan_books_full (src/config.c:202)
May 7 20:17:54 nickel: (NickelMenu) cfg(NM_CONFIG_TYPE_MENU_ITEM) : 1:Reiniciar:0x6f66f0e9:/bin/sync; /bin/busybox reboot (src/config.c:202)
May 7 20:17:54 nickel: (NickelMenu) cfg(NM_CONFIG_TYPE_MENU_ITEM) : 1:Coolreader:0x6f66f0e9:/mnt/onboard/.adds/vlasovsoft/launcher.sh (src/config.c:202)
May 7 20:17:54 nickel: (NickelMenu) cfg(NM_CONFIG_TYPE_MENU_ITEM) : 1:Koreader:0x6f66f0e9:/mnt/onboard/.adds/koreader/koreader.sh (src/config.c:202)
May 7 20:17:54 nickel: (NickelMenu) init: opening libnickel (src/init.c:62)
May 7 20:17:54 nickel: (NickelMenu) init: hooking libnickel (src/init.c:69)
May 7 20:17:54 nickel: (NickelMenu) lib /usr/local/Kobo/libnickel.so.1 is mapped at 75a8b000 (src/dlhook.c:39)
May 7 20:17:54 nickel: (NickelMenu) DT_DYNAMIC: plt_is_rela=0 plt=0x75f179ec plt_sz=151696 plt_ent_sz=0 sym=0x8 str=(nil) (:1975136408)
May 7 20:17:54 nickel: (NickelMenu) found symbol _ZN28AbstractNickelMenuController18createMenuTextI temEP5QMenuRK7QStringbbS4_ (gotoff=0x111e8b0 [mapped=0x76ba98b0]) (src/dlhook.c:86)
May 7 20:17:54 nickel: (NickelMenu) ensuring the symbol is loaded (src/dlhook.c:93)
May 7 20:17:54 nickel: (NickelMenu) removing memory protection (src/dlhook.c:101)
May 7 20:17:54 nickel: (NickelMenu) patching symbol (src/dlhook.c:108)
May 7 20:17:54 nickel: (NickelMenu) successfully patched symbol _ZN28AbstractNickelMenuController18createMenuTextI temEP5QMenuRK7QStringbbS4_ (orig=0x7652d395, new=0x6f66ce39) (src/dlhook.c:111)
May 7 20:17:54 nickel: (NickelMenu) init: destroying failsafe (src/init.c:77)
May 7 20:17:54 nickel: (NickelMenu) failsafe: scheduling restore (src/failsafe.c:66)
May 7 20:17:54 nickel: (NickelMenu) init: done (src/init.c:81)
May 7 20:17:54 nickel: (NickelMenu) failsafe: restoring after 20 seconds (src/failsafe.c:48)
May 7 20:17:55 nickel: ( 1.802 @ 0x16812f0) loadPlugin: loaded plugin for QFontEngine
May 7 20:17:55 nickel: ( 1.834 @ 0x16812f0) loadPlugin: loaded plugin for QRawFont
May 7 20:17:55 nickel: ( 1.835 @ 0x16812f0) Loading iType.. true
May 7 20:17:55 nickel: ( 1.957 @ 0x16812f0) loadPlugin: loaded plugin for QRasterPaintEngine
May 7 20:17:55 nickel: ( 1.986 @ 0x16812f0 / ui.warning) "4.20.14601 (30c2f5c348, 28/02/20)"

Now Clara HD is on. I launch koreader, I'll read, and Clara HD will be turn off over 3:00 am. Tomorow we will see if libnm.so exits.