Mengamati Proses Kerja Sistem

Linux mencatat setiap kejadian yang terjadi di sistem Anda, baik dalam keadaan lancar ataupun saat sedang bermasalah. Anda bisa memanfaatkan catatan sistem ini, baik untuk sekedar mengetahui proses yang sedang dilakukan sistem ataupun untuk dipergunakan membantu memecahkan masalah yang sedang terjadi dengan sistem Anda.

Semua catatan ini disimpan dalam file /var/log/messages. Anda bisa mengetahui proses sistem ini secara langsung dengan memberikan perintah berikut di terminal / konsole:

tail -f /var/log/messages

Berikut contoh proses kerja yang sedang terjadi ketika suatu flash disk dipasang, dipakai, dinonaktifkan (safely remote) dan kemudian dilepas dari komputer.

Apr 10 07:59:44 localhost kernel: usb 5-7: new high speed USB device using ehci_hcd and address 6
Apr 10 07:59:44 localhost kernel: usb 5-7: configuration #1 chosen from 1 choice
Apr 10 07:59:44 localhost kernel: scsi4 : SCSI emulation for USB Mass Storage devices
Apr 10 07:59:49 localhost kernel: scsi 4:0:0:0: Direct-Access USB Flash Disk 1100 PQ: 0 ANSI: 0 CCS
Apr 10 07:59:49 localhost kernel: sd 4:0:0:0: [sda] 1981440 512-byte hardware sectors (1014 MB)
Apr 10 07:59:49 localhost kernel: sd 4:0:0:0: [sda] Write Protect is off
Apr 10 07:59:49 localhost kernel: sd 4:0:0:0: [sda] Assuming drive cache: write through
Apr 10 07:59:49 localhost kernel: sd 4:0:0:0: [sda] 1981440 512-byte hardware sectors (1014 MB)
Apr 10 07:59:49 localhost kernel: sd 4:0:0:0: [sda] Write Protect is off
Apr 10 07:59:49 localhost kernel: sd 4:0:0:0: [sda] Assuming drive cache: write through
Apr 10 07:59:50 localhost kernel: sda: sda1
Apr 10 07:59:50 localhost kernel: sd 4:0:0:0: [sda] Attached SCSI removable disk
Apr 10 07:59:50 localhost kernel: sd 4:0:0:0: Attached scsi generic sg0 type 0
Apr 10 07:59:55 localhost hald: mounted /dev/sda1 on behalf of uid 0
Apr 10 08:00:01 localhost hald: unmounted /dev/sda1 from '/media/disk' on behalf of uid 0
Apr 10 08:00:08 localhost kernel: usb 5-7: USB disconnect, address 6

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